Hello @tgurecky, in this case, the only way is the ST. Do you need some help with that? Best regards, Martin

Hi @juntiedt, there is a M103 with 8 relays.

Hello @origami, the UniPi 1.1 doesn't need any firmware. To use the newest set of tools, do full update & upgrade of the operating system. Best regards, Martin

@jasperjackson said in io.writeport TCP: io.writeport(conn_handle,adr command[0],10); Got it... one has to keep calling io.writeport(conn_handle,adr command[0],10); until it returns true :)

Hello @somapa, the first thing is to configure the Siemens PLC as the ModbusTCP slave. Unfortunately we don't have any direct experience with it, so you have to look for help somewhere else. But you can verify the settings with e.g. qModMaster. The second step is to configure generic Modbus slave device in Mervis and we have a tutorial for that: https://kb.unipi.technology/en:sw:01-mervis:connecting-to-modbus-slave-device-hidden If, in any case, you wouldn't be able to set the Siemens as ModbusTCP slave, you can set the Mervis as ModbusTCP slave and let the Siemens update the registers. You can read more about how to set the Mervis as ModbusTCP slave here: https://kb.unipi.technology/en:sw:01-mervis:setting-modbus-server-hidden Best regards, Martin

Hello @christian, the websocket interface sends only values which has changed. To request all current values, send this command at any time: {"cmd": "all"} Best regards, Martin

Hello @christian, it is hard to see from the picture, but it looks like your sensors are connected in star topology. This is highly unrecommended and you can read more about it here: https://www.maximintegrated.com/en/app-notes/index.mvp/id/148 Best regards, Martin

Hello @msoenen, the Mervis smart phone app cannot be used right now. We are working on the overall support as we speak and it will be released along with tutorials hopefully by the end of this month. Best regards, Martin

Hello @matt, yes, there is. Double click on the PLC in Left panel and then switch to the User rights in the main window: As you can see, the default user is Visitor without password. You can rename the users, add or delete them and set them passwords. Best regards, Martin

Hi Martijn, I am also trying to read analog and digital ports on unipi to collect sensor data from few sensors. I was also just wondering if we can do it in the same way like we do it on raspberry pi using a python script. I can see that even you wanted to do something like that. I have also gone through evok api but they seem to be specific models. I dont think using that we can directly read analog and digital I/Os on unipi. Can you please suggest any ideas if you were successful doing that? Thanks, Jitu

Yes! So obvious when you see it! Thanks :) Looking at the debug output, the rand block is running all the time, even though it is only needed to generate one number at a time. I am not sure if this wastes CPU, or if it is more efficient to only enable it when triggered, and turn it off again once the number has been generated. What do you think? I took your logic and made it behave like TON but with a random time (so, the output of my timer will go in to this, then the output of this will be delayed by some random time, so the result would be, the light will come with a random delay of on up to an hour after 6PM, or whenever the time is set by the timer.) (This first turns on the rand -> integer sequence for 1s, then after 1s, TON_0 switches on to capture number and to activate the actual switch on delay)

Hello @msoenen, any SD card you bought from us is empty - we don't preinstall any operating system. I would recommend flashing a UniPian to the SD card. The UniPian is Raspbian with preinstalled packages that allow communication with IO boards. The UniPian image can be downloaded here: https://kb.unipi.technology/files:software:os-images:00-start And here is a tutorial how to flash the MervisOS image to the SD card and you can use parts of it for flashing the UniPian image as well: https://kb.unipi.technology/en:sw:01-mervis:running-on-neuron-hidden Best regards, Martin

Mockrát děkuji za odpověď.

solved it! msg.url = "http://10.0.0.52:8080/json/relay/3"; msg.headers =JSON.stringify({"content-type":"application/json"}); msg.payload = JSON.stringify({"value": "1","timeout": "20"}); return msg;

Hi @arolli, can you share more about what you are trying to achieve? Thanks, Martin