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    More than 1 xSxx on RS485

    UniPi Extension Modules (Axon & Neuron)
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    • W
      wizro_pl @tomas_hora last edited by

      @tomas_hora
      I didn't do it because your application is going crash after put flash button.

      Yesterday, I back to investigate and tried to flash it using fwserial without success (according to this [https://forum.unipi.technology/topic/693/multiple-xs50-on-a-l513-rs485/20](link url)).
      Also, I found out why windows application going crash because programmer do not support exception when the necessary file does not exist (!!) "E-8Di8Ro-0_P-11DiR485-1.bin"

      Here is the result from fwserial:
      root@L203-sn18:/home/pi/unipi-bin# /opt/neuron-bin/fwserial -p /dev/ttyUSB0 -PR
      Boardset: 4 E-8Di8Ro_P-11DiR485 (v1.0)
      Baseboard: 1 E-8Di8Ro (v0.2)
      Firmware: v4.9
      Modbus timeout set
      error opening firmware file "/opt/fw/E-8Di8Ro-0_P-11DiR485-1.bin"
      root@L203-sn18:/home/pi/unipi-bin#

      I've used usbconverter RS485 because I had problem with communication using buildiin RS485 in Neuron.

      I tried with "UniPian-Neuron-OS-2018-03-09.img" and also directly download from https://git.unipi.technology/UniPi/unipi-bin/fw

      There is no file "E-8Di8Ro-0_P-11DiR485-1.bin"

      Here is a search result:

      root@L203-sn18:/home/pi# find / -name "E-8Di8Ro-*.bin"
      /home/pi/unipi-bin/fwx/400-400/E-8Di8Ro-1C.bin
      /home/pi/unipi-bin/fwx/1000-2000/E-8Di8Ro-0C.bin
      /home/pi/unipi-bin/fwx/1000-2000/E-8Di8Ro-1C.bin
      /home/pi/unipi-bin/fwx/400-2000/E-8Di8Ro-1C.bin
      /home/pi/unipi-bin/fw/E-8Di8Ro-1_P-11DiR485-1.bin
      /home/pi/unipi-bin/fw/E-8Di8Ro-1C.bin
      /home/pi/unipi-bin/fw/E-8Di8Ro-1.bin
      /opt/neuron-bin/fw/E-8Di8Ro-1_P-11DiR485-1.bin
      /opt/neuron-bin/fw/E-8Di8Ro-1C.bin
      /opt/neuron-bin/fw/E-8Di8Ro-1.bin
      root@L203-sn18:/home/pi#

      file "E-8Di8Ro-1_P-11DiR485-1.bin" is not suitable.

      Martin Kudláček 1 Reply Last reply Reply Quote 0
      • Martin Kudláček
        Martin Kudláček @wizro_pl last edited by Martin Kudláček

        Hello @wizro_pl,
        please, follow these instructions:

        • download the MervisOS v1.7 image from here
        • save it to the SD card
        • put it into your PLC, start it and SSH into it (user: unipi, password: unipi.technology)
        • switch to the root user: sudo bash
        • update the packages: apt update && apt upgrade
        • reboot the unit and SSH into it again and switch to the root user
        • stop the Mervis: systemctl stop mervisrt
        • connect the extension to the RS485 port
        • run the firmware flashing: /opt/unipi-bin/fwserial -p /dev/extcomm/0/0 -PR
        • ... and post the result back here.

        Thank you for your patience,
        Martin

        W 1 Reply Last reply Reply Quote 0
        • T
          TomasKnot last edited by TomasKnot

          Hello @Martin-Kudláček @wizro_pl,

          As an addendum, if the above doesn't work, please use these commands before the last step:

          sudo bash
cd /opt/unipi-bin/fw
ln -s E-8Di8Ro-1_P-11DiR485-1.bin E-8Di8Ro-0_P-11DiR485-1.bin
ln -s E-8Di8Ro-1_P-11DiR485-1.rw E-8Di8Ro-0_P-11DiR485-1.rw

          and then run the flashing command again, i.e.:

          sudo bash
/opt/unipi-bin/fwserial -p /dev/extcomm/0/0 -PR

          It looks like this is one of the first extension boards we've sent out, and so has an older firmware with a slightly different name, apologies.

          1 Reply Last reply Reply Quote 0
          • W
            wizro_pl @Martin Kudláček last edited by wizro_pl

            @martin-kudláček said in More than 1 xSxx on RS485:

            put it into your PLC, start it and SSH into it (user: unipi, password: unipi.technology)

            How to enable SSH ? (probably by defualt is diable)\

            @TomasKnot I did change ealier and got "invalid address" or something like that.

            W 1 Reply Last reply Reply Quote 0
            • W
              wizro_pl @wizro_pl last edited by

              ok, I enabled sshd

              I did update & upgrade, reboot.

              Here is your feedback

              root@L203-sn18:/var/home/unipi# systemctl stop mervisrt
root@L203-sn18:/var/home/unipi# /opt/unipi-bin/fwserial -p /dev/extcomm/0/0 -PR
Boardset:     4 E-8Di8Ro_P-11DiR485            (v1.0)
Baseboard:    1 E-8Di8Ro                       (v0.2)
Firmware: v4.9
Modbus timeout set
Program mode setting failed: Illegal data address
root@L203-sn18:/var/home/unipi# cd /opt/unipi-bin/fw
bash: cd: /opt/unipi-bin/fw: No such file or directory
root@L203-sn18:/var/home/unipi# ln -s E-8Di8Ro-1_P-11DiR485-1.bin E-8Di8Ro-0_P-11DiR485-1.bin
root@L203-sn18:/var/home/unipi# ln -s E-8Di8Ro-1_P-11DiR485-1.rw E-8Di8Ro-0_P-11DiR485-1.rw
root@L203-sn18:/var/home/unipi# /opt/unipi-bin/fwserial -p /dev/extcomm/0/0 -PR
Boardset:     4 E-8Di8Ro_P-11DiR485            (v1.0)
Baseboard:    1 E-8Di8Ro                       (v0.2)
Firmware: v4.9
Modbus timeout set
Program mode setting failed: Illegal data address
root@L203-sn18:/var/home/unipi#

              and I tried

              root@L203-sn18:/opt# cd fw
root@L203-sn18:/opt/fw# ln -s E-8Di8Ro-1_P-11DiR485-1.bin E-8Di8Ro-0_P-11DiR485-1.bin
ln: failed to create symbolic link 'E-8Di8Ro-0_P-11DiR485-1.bin': Read-only file system
root@L203-sn18:/opt/fw# ln -s E-8Di8Ro-1_P-11DiR485-1.rw E-8Di8Ro-0_P-11DiR485-1.rw
ln: failed to create symbolic link 'E-8Di8Ro-0_P-11DiR485-1.rw': Read-only file system
root@L203-sn18:/opt/fw# remount rw
root@L203-sn18:/opt/fw# ln -s E-8Di8Ro-1_P-11DiR485-1.bin E-8Di8Ro-0_P-11DiR485-1.bin
root@L203-sn18:/opt/fw# ln -s E-8Di8Ro-1_P-11DiR485-1.rw E-8Di8Ro-0_P-11DiR485-1.rw
root@L203-sn18:/opt/fw# /opt/unipi-bin/fwserial -p /dev/extcomm/0/0 -PR -d /opt/fw
Boardset:     4 E-8Di8Ro_P-11DiR485            (v1.0)
Baseboard:    1 E-8Di8Ro                       (v0.2)
Firmware: v4.9
Modbus timeout set
Program mode setting failed: Illegal data address
root@L203-sn18:/opt/fw#

              I see this version not need "E-8Di8Ro-0_P-11DiR485-1.rw" but it still not proper version.

              W 1 Reply Last reply Reply Quote 0
              • W
                wizro_pl @wizro_pl last edited by

                Do you have any sugestion what should we do now?

                1 Reply Last reply Reply Quote 0
                • T
                  TomasKnot last edited by

                  Would it be possible to schedule a remote support session over TeamViewer? It seems like it might be the best solution, it's hard to know exactly what has gone wrong in your case.

                  I will contact you via a personal message regarding the time and other details.

                  1 Reply Last reply Reply Quote 0
                  • W
                    wizro_pl last edited by

                    We can do. Yesterday I sent you the private message.

                    1 Reply Last reply Reply Quote 0
                    • W
                      wizro_pl last edited by

                      When we can do something with that?

                      1 Reply Last reply Reply Quote 0
                      • T
                        TomasKnot last edited by

                        Apologies, I had taken time off for personal reasons for the last two days. I will be here over the next two weeks every day.

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