After installation of a xG18 extention I get a Server Error 500 for the Rest Json


  • administrators

    Hi @Stoeffel ,
    I tried to reproduce the error, but without any luck. I used:

    Neuron S103
    This OS image: https://kb.unipi.technology/_media/files:software:os-images:neuron-opensource-os_image-20210426.0.zip
    Then I installed evok (apt update && apt install evok -y)
    Replaced the /etc/evok.conf with the one you provided
    Rebooted the PLC
    The Evok starts without any problem and I can see the temperature:
    56bf3062-5aef-45c7-bddb-1096ca0a79d6-image.png

    Can you please try the procedure from above?

    Thank you and have a nice day,
    Martin



  • Hello Martin
    Thanks for your reply.
    And <IP_Neuron>/josn/all shows correct values? Or Server Error 500?
    In the Webfrontend of evok I have also correct values.

    Stefan



  • Hello Martin

    Here's what I did:

    • Downloaded your image and copied it to a new SD card.

    • Set network parameters.

    • Logged in via ssh and executed the following:
      sudo apt-get update && sudo apt-get upgrade
      sudo apt-get install evok

    check if evok frontend is running --> okay
    check if <IP>/json/all is running --> okay

    • Configure xG18 in evok.conf (version above)

    • restart evok

    check if evok frontend is running --> okay
    check if <IP>/json/all is running --> Server Error 500
    801cd975-8cf0-4e25-91b0-95b632091116-grafik.png

    If its easier I can open a Open VPN vor you to the Neuron for debugging.
    I have been trying to solve the problem for more than a year now, and I bought the 4 xG18s specifically to avoid the problems with the owfs. I would be happy if we could solve the problem. By the way, I've informed and work together with klaus from fhem forum that the xG18 extensions are correctly recognised in FHEM. That's done now.

    Thanks Stefan



  • Hello Martin
    I have some more information for you.
    I have now connected another xG18 to my M203. I can reproduce the problem there exactly the same as with the L503 in the post above. Possibly the problem is with all Neurons versions the same.
    My xG18 are V1.0

    I also have the feeling that the Evok frontend is updated much more slowly with connected xG18 and sometimes hangs. However, the inputs and outputs work perfectly.

    I have also updated the NGINX server from the bulleye repository to version 1.18 because I had read a report in the forum with similar log entries as errors, which are patched from V.1.17 onwards. Unfortunately, this was not the solution.

    Kind regards
    Stefan


  • administrators

    Hello @Stoeffel,
    thank you for the information. I am able to replicate the problem now. I have forwared the issue to my colleague who takes care the Evok and I'll get back to you as soon as I will now more, probably next week.

    Thank you and have a nice day,
    Martin


  • administrators

    Hello @Stoeffel,

    the issue should be fixed in the current release. Please upgrade to version 2.4.8.



  • Hello Martin

    I updated to 2.4.8. I can't see any difference. The problem is the same.

    <IP>/json/all:

    2f4a960f-7b3e-4de9-b5b1-7db1a947c097-grafik.png

    Also Modbus stops working after 1-5min. (Rx Tx stop blinking)

    <IP>/rest/all works properly.

    Greetings Stefan


  • administrators

    Hello @Stoeffel,
    with the 2.4.8 it looks ok from my side.

    This is /json/all:
    {"status": "success", "data": [{"counter_modes": ["Enabled", "Disabled"], "glob_dev_id": 1, "modes": ["Simple", "DirectSwitch"], "value": 0, "circuit": "1_01", "debounce": 50, "counter": 0, "counter_mode": "Enabled", "dev": "input", "mode": "Simple"}, {"counter_modes": ["Enabled", "Disabled"], "glob_dev_id": 1, "modes": ["Simple", "DirectSwitch"], "value": 0, "circuit": "1_02", "debounce": 50, "counter": 0, "counter_mode": "Enabled", "dev": "input", "mode": "Simple"}, {"counter_modes": ["Enabled", "Disabled"], "glob_dev_id": 1, "modes": ["Simple", "DirectSwitch"], "value": 0, "circuit": "1_03", "debounce": 50, "counter": 0, "counter_mode": "Enabled", "dev": "input", "mode": "Simple"}, {"counter_modes": ["Enabled", "Disabled"], "glob_dev_id": 1, "modes": ["Simple", "DirectSwitch"], "value": 0, "circuit": "1_04", "debounce": 50, "counter": 0, "counter_mode": "Enabled", "dev": "input", "mode": "Simple"}, {"relay_type": "digital", "glob_dev_id": 1, "pwm_duty": 0, "dev": "relay", "modes": ["Simple", "PWM"], "pwm_freq": 39, "value": 0, "alias": "al_lights_kitchen", "mode": "Simple", "circuit": "1_01", "pending": false}, {"relay_type": "digital", "glob_dev_id": 1, "pwm_duty": 0, "dev": "relay", "modes": ["Simple", "PWM"], "pwm_freq": 39, "value": 0, "alias": "al_lights_bedroom", "mode": "Simple", "circuit": "1_02", "pending": false}, {"pwm_duty": 0, "glob_dev_id": 1, "pwm_freq": 39, "modes": ["Simple", "PWM"], "value": 0, "circuit": "1_03", "pending": false, "relay_type": "digital", "dev": "relay", "mode": "Simple"}, {"pwm_duty": 0, "glob_dev_id": 1, "pwm_freq": 39, "modes": ["Simple", "PWM"], "value": 0, "circuit": "1_04", "pending": false, "relay_type": "digital", "dev": "relay", "mode": "Simple"}, {"glob_dev_id": 1, "unit": "V", "value": 0.010469025995341785, "circuit": "1_01", "range_modes": ["10.0"], "modes": ["Voltage", "Current"], "range": "10.0", "dev": "ai", "mode": "Voltage"}, {"modes": ["Voltage", "Current", "Resistance"], "value": 0.0, "glob_dev_id": 1, "dev": "ao", "circuit": "1_01", "unit": "V", "mode": "Voltage"}, {"value": 0, "circuit": "1_01", "dev": "led", "glob_dev_id": 1}, {"value": 0, "circuit": "1_02", "dev": "led", "glob_dev_id": 1}, {"value": 0, "circuit": "1_03", "dev": "led", "glob_dev_id": 1}, {"value": 0, "circuit": "1_04", "dev": "led", "glob_dev_id": 1}, {"circuit": "1_01", "value": 0, "glob_dev_id": 1, "dev": "wd", "timeout": 5000, "was_wd_reset": 0, "nv_save": 0}, {"glob_dev_id": 1, "last_comm": 0.014560937881469727, "ver2": "2.4", "sn": 1, "circuit": "1", "model": "S103", "dev": "neuron", "board_count": 1}, {"uart_circuit": "None", "dev": "extension", "glob_dev_id": 2, "last_comm": 1.0246500968933105, "circuit": "UART_1_2", "model": "xG18", "uart_port": "/dev/extcomm/0/0"}, {"conf_value": 3262, "glob_dev_id": 1, "sw_address": 0, "parity_modes": ["None", "Odd", "Even"], "stopb_modes": ["One", "Two"], "speed_modes": ["2400bps", "4800bps", "9600bps", "19200bps", "38400bps", "57600bps", "115200bps"], "dev": "uart", "circuit": "1_01", "parity_mode": "None", "stopb_mode": "One", "speed_mode": "19200bps"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_8", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_4", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_5", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_6", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_7", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_1", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_2", "unit": "\u00b0C"}, {"name": "temperature", "value": 327.68, "glob_dev_id": 2, "valid": "false", "dev": "unit_register", "circuit": "UART_1_2_3", "unit": "\u00b0C"}, {"period_2": 2, "period_3": 2, "period_1": 2, "period_6": 2, "period_7": 2, "period_4": 2, "period_5": 2, "period_8": 2, "dev": "ext_config", "glob_dev_id": 2, "circuit": "UART_1_2", "address": 15}]}

    This is my /etc/evok.conf:

    
    [MAIN]                                          ; !!! ALL MAIN SECTION OPTIONS ARE MANDATORY !!!
    config_version = 2.5                            ; Configuration file version, DO NOT CHANGE!
    use_schema_verification = False                 ; Enabling this will deny any requests that do not match the JSON Schema; NOTE THAT THIS RESULTS IN A SIGNIFICANT INCREASE IN LATENCY AND SHOULD NOT BE USED EXCEPT FOR TESTING
    log_level = ERROR                               ; Minimum severity of messages to be logged; one of INFO, DEBUG, WARNING, ERROR, CRITICAL
    log_file = /var/log/evok.log                    ; Log file to use; will be cleared on boot
    port = 8080                                     ; !!! Internal API port - only change if you are certain you know what you are doing; FOR OUR WEB INTERFACE THE PORT SHOULD BE CHANGED IN "/etc/evok-nginx.conf" INSTEAD !!!
    webhook_enabled = False                         ; Enables webhook notification - see e.g. https://sendgrid.com/blog/whats-webhook/
    webhook_address = http://127.0.0.1:80           ; Put your server endpoint address here (e.g. http://123.123.123.123:/wh )
    webhook_device_mask = ["input","wd"]            ; List of device types to notify on (written as a JSON list) - adding AI will generate a large amount of messages!
    webhook_complex_events = False                  ; EVOK will send POST requests with the same data as WebSocket, rather than an empty GET request
    soap_server_enabled = False                     ; Enables the simple SOAP server; use only if you need the functionality
    soap_server_port = 8081                         ; !!! IF SOAP SERVER IS ENABLED, THIS PORT NEEDS TO BE UNIQUE (i.e. different from the port setting above) !!!
    force_immediate_state_changes = False           ; Outputs will return the value they are set to, rather than the value that the device is currently aware of
    websocket_all_filtered = False                  ; 'All' WebSocket requests will be subject to the filtering set by 'filter'
    
    [NEURON_1]
    global_id = 1                                   ; Mandatory, REQUIRED TO BE UNIQUE
    allow_register_access = False                   ; Optional, False default
    scan_frequency = 10                             ; Optional, 10 default, scanning frequency in [Hz]
    scan_enabled = True                             ; Optional, True default
    
    ; Below you can find examples for connecting devices over UART; first example is a Neuron extension while the second is a custom third-party device
    ; Devices sharing a port use the port settings of the first device on that port (baud rate, parity, stop bits)
    ; !!! Note that device_name has to match a filename in the /etc/hw_definitions directory !!! See /etc/hw_definitions/CUSTOM_MODBUS_DEVICE.yaml for an example
    
    [EXTENSION_1]
    global_id = 2                                   ; Mandatory, REQUIRED TO BE UNIQUE
    device_name = xG18                              ; Mandatory, must match name of .yaml modbus map file in /etc/hw_definitions
    modbus_uart_port = /dev/extcomm/0/0             ; Mandatory
    ;neuron_uart_circuit = 1_01                     ; Optional, allows associating extensions with specific Neuron UART-over-Modbus ports (not possible for non-Modbus UART ports, e.g. /dev/ttyUSB0 or /dev/ttyS0)
    ;allow_register_access = False                  ; Optional, False default, is mandatory with third-party devices
    ;address = 1                                    ; Optional, 1 default
    ;scan_frequency = 10                            ; Optional, 10 default, scanning frequency in [Hz]
    ;scan_enabled = True                            ; Optional, True default
    ; Note that the following settings will be inherited by other devices sharing the same port, i.e. /dev/extcomm/0/0
    ;baud_rate = 19200                              ; Optional, NEEDS UNIPI IMAGE TO WORK WITH UNIPI SERIAL PORTS! USE API TO CONFIGURE UART MANUALLY IF USING STANDARD RASPBIAN
    ;parity = N                                     ; Optional, NEEDS UNIPI IMAGE TO WORK WITH UNIPI SERIAL PORTS! USE API TO CONFIGURE UART MANUALLY IF USING STANDARD RASPBIAN
    ;stop_bits = 1                                  ; Optional, NEEDS UNIPI IMAGE TO WORK WITH UNIPI SERIAL PORTS! USE API TO CONFIGURE UART MANUALLY IF USING STANDARD RASPBIAN
    
    ;[EXTENSION_2]
    ;global_id = 3                                  ; Mandatory, REQUIRED TO BE UNIQUE
    ;device_name = CUSTOM MODBUS DEVICE             ; Mandatory, must match name of .yaml modbus map file in /etc/hw_definitions
    ;modbus_uart_port = /dev/extcomm/0/0            ; Mandatory
    ;neuron_uart_circuit = 1_01                     ; Optional, allows associating extensions with specific Neuron UART-over-Modbus ports (not possible for non-Modbus UART ports, e.g. /dev/ttyUSB0 or /dev/ttyS0)
    ;allow_register_access = True                   ; Mandatory with third-party devices
    ;address = 1                                    ; Optional, 15 default
    ;scan_frequency = 2                             ; Optional, 1 default, scanning frequency in [Hz]
    ;scan_enabled = True                            ; Optional, True default
    
    [OWBUS_1]
    owbus = /dev/i2c-1                              ; Mandatory, scanned bus (--i2c=/dev/i2c-1:ALL or localhost:2122 or 'u' for USB dongle)
    interval = 3                                    ; Mandatory, [s] length of sensor reading
    scan_interval = 300                             ; Mandatory, [s] How often the scanning is done
    
    ; See below for 1Wire extension module configuration
    ; Example for the 1W-4R/4DI extension module, 1W-8R is almost the same, only with inputs instead of relays
    ;
    ; - Map a new 1Wire sensor with the appropriate address, type and interval
    ; - The syntax can be either SENSOR or 1WDEVICE
    ; - Setting the correct reading interval is crucial to achieve ideal performance; the default interval is 15s
    ;
    ;[1WDEVICE_2]
    ;bus = 1
    ;address = 29F39A17000000BC
    ;type = DS2408
    ;interval = 1
    ;
    ;[1WRELAY_10]
    ;sensor = 2
    ;pin = 0
    ;
    ;[1WRELAY_11]
    ;sensor = 2
    ;pin = 1
    ;
    ;[1WRELAY_12]
    ;sensor = 2
    ;pin = 2
    ;
    ;[1WRELAY_13]
    ;sensor = 2
    ;pin = 3
    ;
    ;[1WINPUT_20]
    ;sensor = 2
    ;pin = 4
    ;
    ;[1WINPUT_21]
    ;sensor = 2
    ;pin = 5
    ;
    ;[1WINPUT_22]
    ;sensor = 2
    ;pin = 6
    ;
    ;[1WINPUT_23]
    ;sensor = 2
    ;pin = 7
    

    Please, verify that the configuration is the same. If it still doesn't work, can you please stop the evok and run it manually? It will show more information about the error.

    systemctl stop evok
    /opt/evok/bin/python /opt/evok/lib/python2.7/site-packages/evok/evok.py


  • Hello Martin
    I checked again the evok.conf
    I have exactly the same settings as you.
    Here the output:

    user@sps:~ $ sudo /opt/evok/bin/python /opt/evok/lib/python2.7/site-packages/evok/evok.py
    [I 210721 21:36:07 config:73] eprom: UniPi Neuron L503 version: 1.0 serial: 0x62
    [I 210721 21:36:07 evok:1894] Starting using config file /etc/evok.conf
    /opt/evok/lib/python2.7/site-packages/evok/config.py:96: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.definitions += [yaml.load(yfile)]
    [I 210721 21:36:07 config:97] YAML Definition loaded: xS10.yaml, type: 3, definition count 0
    [I 210721 21:36:08 config:97] YAML Definition loaded: xS30.yaml, type: 3, definition count 1
    [I 210721 21:36:08 config:97] YAML Definition loaded: IAQ.yaml, type: 3, definition count 2
    /opt/evok/lib/python2.7/site-packages/evok/config.py:103: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.neuron_definition = yaml.load(yfile)
    [I 210721 21:36:08 config:104] YAML Definition loaded: /etc/hw_definitions/BuiltIn/L503.yaml, type: UniPiBuiltIn
    [I 210721 21:36:08 config:97] YAML Definition loaded: xS40.yaml, type: 3, definition count 3
    [I 210721 21:36:08 config:97] YAML Definition loaded: xG18.yaml, type: 3, definition count 4
    [I 210721 21:36:08 config:97] YAML Definition loaded: xS51.yaml, type: 3, definition count 5
    [I 210721 21:36:08 config:97] YAML Definition loaded: xS50.yaml, type: 3, definition count 6
    [I 210721 21:36:08 config:97] YAML Definition loaded: CUSTOM_MODBUS_DEVICE.yaml, type: 3, definition count 7
    [I 210721 21:36:08 config:97] YAML Definition loaded: xS11.yaml, type: 3, definition count 8
    [I 210721 21:36:08 config:97] YAML Definition loaded: evok-alias.yaml, type: 2, definition count 0
    [I 210721 21:36:08 evok:1964] HTTP server listening on port: 8080
    [I 210721 21:36:09 modbusclient_tornado:128] SPI client started
    [I 210721 21:36:09 modbusclient_rs485:347] UART client started
    [I 210721 21:36:09 neuron:334] Reading the UART board on Modbus address 2
    [I 210721 21:36:09 owclient:445] Entering OWW loop with PID 2074
    [I 210721 21:36:09 modbusclient_rs485:347] UART client started
    [I 210721 21:36:09 neuron:334] Reading the UART board on Modbus address 3
    [I 210721 21:36:09 modbusclient_rs485:347] UART client started
    [I 210721 21:36:09 neuron:334] Reading the UART board on Modbus address 4
    [I 210721 21:36:09 modbusclient_rs485:347] UART client started
    [I 210721 21:36:09 neuron:334] Reading the UART board on Modbus address 1
    [I 210721 21:36:09 neuron:215] Reading SPI boards
    [C 210721 21:36:09 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 285076EB09000092
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2830A9D309000034
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 283278D5090000C0
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 28CA66EB09000090
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 281EA6EA09000025
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2801BF790B0000F3
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2891EBEA090000EE
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 28097AD30900005F
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 28492EEB090000F4
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 28D92ED409000097
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2885FFD3090000D1
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2895EBD40900006F
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 289D6AD509000047
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 28BD9ED309000041
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 289391D40900000D
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 284B90D309000023
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 2877B5EB090000CD
    [D 210721 21:36:11 owclient:335] New sensor DS18B20 - 280FB2EB090000A5
    [C 210721 21:36:18 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:19 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:21 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:21 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:21 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:21 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [E 210721 21:36:21 modbusclient_rs485:259]   Unrequested message: <modbusclient_rs485.AsyncErrorResponse object at 0x75f5b510>
    [D 210721 21:36:21 neuron:97] device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:21 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:21 sync:383] cleanup recv buffer before send: 
    [C 210721 21:36:22 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:22 sync:383] cleanup recv buffer before send: 0x31
    [C 210721 21:36:22 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:22 sync:383] cleanup recv buffer before send: 
    [C 210721 21:36:33 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:33 sync:383] cleanup recv buffer before send: 0x0
    [C 210721 21:36:43 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:45 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:45 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:45 sync:383] cleanup recv buffer before send: 
    [C 210721 21:36:46 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [I 210721 21:36:48 web:2064] 101 GET /ws (127.0.0.1) 6.56ms
    [D 210721 21:36:48 evok:162] New WebSocket client connected
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:48 sync:383] cleanup recv buffer before send: 0x0
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:48 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:50 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:51 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:51 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:51 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:51 sync:383] cleanup recv buffer before send: 0x0
    [C 210721 21:36:53 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:53 sync:383] cleanup recv buffer before send: 0x0
    [C 210721 21:36:53 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:53 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:53 sync:383] cleanup recv buffer before send: 0x80
    [C 210721 21:36:53 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:36:54 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:36:54 sync:383] cleanup recv buffer before send: 0x0
    [C 210721 21:37:05 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:05 sync:383] cleanup recv buffer before send: 
    [C 210721 21:37:05 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:37:06 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:06 sync:383] cleanup recv buffer before send: 0x2
    [C 210721 21:37:14 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:14 sync:383] cleanup recv buffer before send: 0x2
    [C 210721 21:37:22 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [C 210721 21:37:23 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:23 sync:383] cleanup recv buffer before send: 
    [C 210721 21:37:35 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:35 sync:383] cleanup recv buffer before send: 
    [C 210721 21:37:37 modbusclient_rs485:232] SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [W 210721 21:37:37 sync:383] cleanup recv buffer before send: 0x2
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/ioloop.py", line 605, in _run_callback
            ret = callback()
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/stack_context.py", line 277, in null_wrapper
            return fn(*args, **kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/modbusclient_rs485.py", line 162, in _sendAsyncRequest
            self.client._send(self.frame)
          File "/opt/evok/lib/python2.7/site-packages/evok/modbusclient_rs485.py", line 263, in _send
            super(AsyncModbusSerialClient, self)._send(request)
          File "/opt/evok/local/lib/python2.7/site-packages/pymodbus/client/sync.py", line 381, in _send
            result = self.socket.read(waitingbytes)
          File "/opt/evok/local/lib/python2.7/site-packages/serial/serialposix.py", line 596, in read
            'device reports readiness to read but returned no data '
        SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
    [E 210721 21:39:38 web:1591] Uncaught exception GET /rest/all (127.0.0.1)
        HTTPServerRequest(protocol='http', host='192.168.1.70:80', method='GET', uri='/rest/all', version='HTTP/1.0', remote_ip='127.0.0.1', headers={'Sec-Gpc': '1', 'Accept-Language': 'de-CH', 'Accept-Encoding': 'gzip, deflate', 'Host': '192.168.1.70:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1510, in _execute
            result = method(*self.path_args, **self.path_kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1655, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1593, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210721 21:39:38 web:2064] 500 GET /rest/all (127.0.0.1) 44.95ms
    [E 210721 21:39:42 web:1591] Uncaught exception GET /rest/all (::1)
        HTTPServerRequest(protocol='http', host='192.168.1.70:80', method='GET', uri='/rest/all', version='HTTP/1.0', remote_ip='::1', headers={'Sec-Gpc': '1', 'Accept-Language': 'de-CH', 'Accept-Encoding': 'gzip, deflate', 'Host': '192.168.1.70:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1510, in _execute
            result = method(*self.path_args, **self.path_kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1655, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1593, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210721 21:39:42 web:2064] 500 GET /rest/all (::1) 15.39ms
    [E 210721 21:39:50 web:1591] Uncaught exception GET /json/all (127.0.0.1)
        HTTPServerRequest(protocol='http', host='192.168.1.70:80', method='GET', uri='/json/all', version='HTTP/1.0', remote_ip='127.0.0.1', headers={'Sec-Gpc': '1', 'Accept-Language': 'de-CH', 'Accept-Encoding': 'gzip, deflate', 'Host': '192.168.1.70:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1512, in _execute
            result = yield result
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
            value = future.result()
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
            raise_exc_info(self._exc_info)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 307, in wrapper
            yielded = next(result)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado_json/schema.py", line 160, in _wrapper
            output = rh_method(self, *args, **kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1655, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1593, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210721 21:39:50 web:2064] 500 GET /json/all (127.0.0.1) 23.83ms
    
    

  • administrators

    Hello @Stoeffel ,

    it seems that you access the serial (RS485) line from multiple applications which confuses Evok. Can you try to disable other processes potentially working with HW and leave running Evok only?



  • My L403 just arrived yesterday and I’m trying to connect the xG18 and having the same issues with Stefan.

    I was able to connect in node-red over modbus RTU directly.

    However when I try to access through Evok (different SD card with the same base OS image: https://kb.unipi.technology/_media/files:software:os-images:neuron-node-red_image-20210426.2.zip), I get the exact same error message as Stefan.

    unipi@L403-sn141:/etc$ sudo /opt/evok/bin/python /opt/evok/lib/python2.7/site-packages/evok/evok.py
    [I 210723 07:07:45 config:73] eprom: UniPi Neuron L403 version: 0.1 serial: 0x8d
    [I 210723 07:07:45 evok:1894] Starting using config file /etc/evok.conf
    /opt/evok/lib/python2.7/site-packages/evok/config.py:96: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.definitions += [yaml.load(yfile)]
    [I 210723 07:07:45 config:97] YAML Definition loaded: xS10.yaml, type: 3, definition count 0
    [I 210723 07:07:45 config:97] YAML Definition loaded: xS51.yaml, type: 3, definition count 1
    [I 210723 07:07:45 config:97] YAML Definition loaded: IAQ.yaml, type: 3, definition count 2
    [I 210723 07:07:45 config:97] YAML Definition loaded: xG18.yaml, type: 3, definition count 3
    [I 210723 07:07:45 config:97] YAML Definition loaded: xS30.yaml, type: 3, definition count 4
    [I 210723 07:07:45 config:97] YAML Definition loaded: CUSTOM_MODBUS_DEVICE.yaml, type: 3, definition count 5
    [I 210723 07:07:46 config:97] YAML Definition loaded: xS40.yaml, type: 3, definition count 6
    [I 210723 07:07:46 config:97] YAML Definition loaded: xS50.yaml, type: 3, definition count 7
    [I 210723 07:07:46 config:97] YAML Definition loaded: xS11.yaml, type: 3, definition count 8
    /opt/evok/lib/python2.7/site-packages/evok/config.py:103: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.neuron_definition = yaml.load(yfile)
    [I 210723 07:07:46 config:104] YAML Definition loaded: /etc/hw_definitions/BuiltIn/L403.yaml, type: UniPiBuiltIn
    [I 210723 07:07:46 config:97] YAML Definition loaded: evok-alias.yaml, type: 2, definition count 0
    [I 210723 07:07:46 evok:1964] HTTP server listening on port: 8080
    [I 210723 07:07:46 modbusclient_tornado:128] SPI client started
    [I 210723 07:07:46 modbusclient_rs485:347] UART client started
    [I 210723 07:07:46 neuron:334] Reading the UART board on Modbus address 1
    [I 210723 07:07:46 neuron:215] Reading SPI boards
    [I 210723 07:07:46 owclient:445] Entering OWW loop with PID 1414
    [I 210723 07:07:47 config:390] Alias loaded: <neuron.Relay object at 0x76244cf0> al_lights_kitchen
    [I 210723 07:07:47 config:390] Alias loaded: <neuron.Relay object at 0x762653d0> al_lights_bedroom
    [I 210723 07:07:48 web:2064] 101 GET /ws (127.0.0.1) 5.50ms
    [D 210723 07:07:48 evok:162] New WebSocket client connected
    [I 210723 07:07:52 config:390] Alias loaded: <neuron.Relay object at 0x76244cf0> al_lights_kitchen
    [I 210723 07:07:52 config:390] Alias loaded: <neuron.Relay object at 0x762653d0> al_lights_bedroom
    [E 210723 07:08:02 web:1591] Uncaught exception GET /json/all (::1)
        HTTPServerRequest(protocol='http', host='l403-sn141.local:80', method='GET', uri='/json/all', version='HTTP/1.0', remote_ip='::1', headers={'Accept-Language': 'en-us', 'Accept-Encoding': 'gzip, deflate', 'Host': 'l403-sn141.local:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1512, in _execute
            result = yield result
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
            value = future.result()
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
            raise_exc_info(self._exc_info)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 307, in wrapper
            yielded = next(result)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado_json/schema.py", line 160, in _wrapper
            output = rh_method(self, *args, **kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1654, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1592, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210723 07:08:02 web:2064] 500 GET /json/all (::1) 28.64ms
    
    

    Did an apt update and install to the latest evok version (2.4.10) to no avail.


  • administrators

    Hello @yish,
    the image doesn't have the latest evok. Please, proceed with apt update && apt upgrade, then reboot the PLC and try again.

    Have a nice weekend,
    Martin



  • @Martin-Kudláček said in After installation of a xG18 extention I get a Server Error 500 for the Rest Json:

    Updated, Rebooted and same error:

    root@L403-sn141:/home/unipi# systemctl stop evok
    root@L403-sn141:/home/unipi# /opt/evok/bin/python /opt/evok/lib/python2.7/site-packages/evok/evok.py
    [I 210723 14:58:18 config:73] eprom: UniPi Neuron L403 version: 0.1 serial: 0x8d
    [I 210723 14:58:18 evok:1894] Starting using config file /etc/evok.conf
    /opt/evok/lib/python2.7/site-packages/evok/config.py:96: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.definitions += [yaml.load(yfile)]
    [I 210723 14:58:18 config:97] YAML Definition loaded: xS10.yaml, type: 3, definition count 0
    [I 210723 14:58:18 config:97] YAML Definition loaded: xS51.yaml, type: 3, definition count 1
    [I 210723 14:58:19 config:97] YAML Definition loaded: IAQ.yaml, type: 3, definition count 2
    [I 210723 14:58:19 config:97] YAML Definition loaded: xG18.yaml, type: 3, definition count 3
    [I 210723 14:58:19 config:97] YAML Definition loaded: xS30.yaml, type: 3, definition count 4
    [I 210723 14:58:19 config:97] YAML Definition loaded: CUSTOM_MODBUS_DEVICE.yaml, type: 3, definition count 5
    [I 210723 14:58:19 config:97] YAML Definition loaded: xS40.yaml, type: 3, definition count 6
    [I 210723 14:58:19 config:97] YAML Definition loaded: xS50.yaml, type: 3, definition count 7
    [I 210723 14:58:19 config:97] YAML Definition loaded: xS11.yaml, type: 3, definition count 8
    /opt/evok/lib/python2.7/site-packages/evok/config.py:103: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
      self.neuron_definition = yaml.load(yfile)
    [I 210723 14:58:20 config:104] YAML Definition loaded: /etc/hw_definitions/BuiltIn/L403.yaml, type: UniPiBuiltIn
    [I 210723 14:58:20 config:97] YAML Definition loaded: evok-alias.yaml, type: 2, definition count 0
    [I 210723 14:58:20 evok:1964] HTTP server listening on port: 8080
    [I 210723 14:58:20 modbusclient_tornado:128] SPI client started
    [I 210723 14:58:20 modbusclient_rs485:347] UART client started
    [I 210723 14:58:20 neuron:334] Reading the UART board on Modbus address 1
    [I 210723 14:58:20 neuron:215] Reading SPI boards
    [I 210723 14:58:20 owclient:445] Entering OWW loop with PID 1412
    [I 210723 14:58:20 config:390] Alias loaded: <neuron.Relay object at 0x761f6db0> al_lights_kitchen
    [I 210723 14:58:20 config:390] Alias loaded: <neuron.Relay object at 0x76217510> al_lights_bedroom
    [I 210723 14:58:20 web:2064] 101 GET /ws (::1) 6.23ms
    [D 210723 14:58:20 evok:162] New WebSocket client connected
    [I 210723 14:58:20 web:2064] 200 GET /rest/all (::1) 15.25ms
    [I 210723 14:58:21 web:2064] 101 GET /ws (127.0.0.1) 3.41ms
    [D 210723 14:58:21 evok:162] New WebSocket client connected
    [I 210723 14:58:26 config:390] Alias loaded: <neuron.Relay object at 0x761f6db0> al_lights_kitchen
    [I 210723 14:58:26 config:390] Alias loaded: <neuron.Relay object at 0x76217510> al_lights_bedroom
    [E 210723 14:58:26 web:1591] Uncaught exception GET /json/all (::1)
        HTTPServerRequest(protocol='http', host='l403-sn141.local:80', method='GET', uri='/json/all', version='HTTP/1.0', remote_ip='::1', headers={'Accept-Language': 'en-us', 'Accept-Encoding': 'gzip, deflate', 'Host': 'l403-sn141.local:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1512, in _execute
            result = yield result
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 1055, in run
            value = future.result()
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/concurrent.py", line 238, in result
            raise_exc_info(self._exc_info)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/gen.py", line 307, in wrapper
            yielded = next(result)
          File "/opt/evok/local/lib/python2.7/site-packages/tornado_json/schema.py", line 160, in _wrapper
            output = rh_method(self, *args, **kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1540, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1654, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1592, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210723 14:58:26 web:2064] 500 GET /json/all (::1) 26.74ms
    [D 210723 14:58:31 evok:259] Skipping WS message: {u'cmd': u'all'} (No cached value of register 8 on unit 1 - read error)
    [E 210723 14:58:33 web:1591] Uncaught exception GET /rest/all (::1)
        HTTPServerRequest(protocol='http', host='l403-sn141.local:80', method='GET', uri='/rest/all', version='HTTP/1.0', remote_ip='::1', headers={'Accept-Language': 'en-us', 'Accept-Encoding': 'gzip, deflate', 'Host': 'l403-sn141.local:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1510, in _execute
            result = method(*self.path_args, **self.path_kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1654, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1592, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210723 14:58:33 web:2064] 500 GET /rest/all (::1) 11.47ms
    [E 210723 14:58:33 web:1591] Uncaught exception GET /rest/all (::1)
        HTTPServerRequest(protocol='http', host='l403-sn141.local:80', method='GET', uri='/rest/all', version='HTTP/1.0', remote_ip='::1', headers={'Accept-Language': 'en-us', 'Accept-Encoding': 'gzip, deflate', 'Host': 'l403-sn141.local:80', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.3 Safari/605.1.15', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1'})
        Traceback (most recent call last):
          File "/opt/evok/local/lib/python2.7/site-packages/tornado/web.py", line 1510, in _execute
            result = method(*self.path_args, **self.path_kwargs)
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in get
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/evok.py", line 1591, in <lambda>
            result += map(lambda dev: dev.full(), Devices.by_int(UNIT_REGISTER))
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1654, in full
            'value': (self.regvalue()),
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 1592, in <lambda>
            self.regvalue = lambda: (self.arm.neuron.modbus_cache_map.get_register(1, self.valreg, unit=self.arm.modbus_address, is_input=_is_iput)[0] * self.factor) + self.offset
          File "/opt/evok/lib/python2.7/site-packages/evok/neuron.py", line 55, in get_register
            raise Exception('No cached value of register %d on unit %d - read error' % (counter, unit))
        Exception: No cached value of register 8 on unit 1 - read error
    [E 210723 14:58:33 web:2064] 500 GET /rest/all (::1) 11.42ms
    


  • Hello Martin

    I hope I have solved the problem now. My Modbus and Json/Rest have been running error-free for 24 hours.
    I have done the following:

    • Update EVOK to 2.4.10
    • Deactivated the Modbus device in FHEM
    • The Modbus is now only addressed via the Neuron Device in FHEM.

    The access to the Modbus is realised with Fhem on the one hand via the Device Neuron and on the other hand via the Device Modbus. If both are installed, there will probably be conflicts which cause EVOK to crash. In any case, it was possible to get the system running again for a while by restarting EVOK.

    After deactivating the Modbus device in Fhem, I no longer had any error messages in EVOK. However, after 2 hours, the Modbus hung up again. Then I updated EVOK to 2.4.10 and rebooted everything. Since then, the system has been running error-free for 24 hours.
    I will get back a response to you in a week again.

    Kind regards Stefan



  • Hi Martin, do you have any suggestions on how to resolve. I tried disabling node-red to see if that worked but no success. Am open to suggestions on what to try.

    If I have some extra time I will try a fresh SD card with the setup you verified for Stefan (specified vanilla neuron OS, install evok, and use the same evok.conf) to see if that will work.



  • As promised, here is the feedback.
    The problem has definitely been solved.
    Many thanks for the help

    Kind regards
    Stefan


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