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Getting error on the Modbus Node-Red

Created by: FATIN93 at: 2/24/2022 9:30 AM (3 Replies)

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2/24/2022 9:30 AM	Rate (0)
FATIN93 Member Joined: 12/27/2021 Last visit: 12/11/2023 Posts: 9 Rating: (0)	Hello, can someone help on this matter. I have pulled data from 2 power meter (Siemens PAC3220) in IOT 2050 through Modbus TCPIP. All the data successfully pull from the device almost 3 month already, but last week (Thursday) it stop pulling the data from both power meter. It show modbus not active, but polling. After restart the flow, it resume pulling the data. But today , it happen again it stop pulling both power meter values. I will share the syslog below. Btw, Is there any way we can check log file from power meter? Best regards! Attachment modbus-syslog.txt (271 Downloads)

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2/24/2022 2:00 PM	Rate (0)
bergmanu Platinum Member Joined: 4/28/2015 Last visit: 11/12/2024 Posts: 3345 Rating: (379)	Hi, from those messaged I can't really say why it stopped working, there is not much information except of two errors "Time out" for L3 and L1. Don't whether this can be a network issue or something else. It does work again every time after re-deploying? You want to check the IOT2050 logfile from the Power Meter? I don't think that there is way. Best regards!
	Not working for IOT2050 support anymore from March 1st, 2024. I really enjoyed the time supporting you! :)
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2/25/2022 3:50 AM	Rate (0)
FATIN93 Member Joined: 12/27/2021 Last visit: 12/11/2023 Posts: 9 Rating: (0)	Hi bergmanu , Yes it will work again if we re-deploying or restart the flow. Is there any method / setting that we can check if we did not receive value from device (PAC3220)? About the network, this IOT we did setup Wifi with security protocol WPA2 Enterprise. At the power meter side, the device workable can display on the screen. Only Node Red modbus status pooling not active. Best regards! Attachment WhatsApp Image 2022-02-25 at 10.49.01.jpeg (245 Downloads)
	Last edited by: FATIN93 at: 02/25/2022 03:50:38
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3/1/2022 3:44 PM	Rate (0)
bergmanu Platinum Member Joined: 4/28/2015 Last visit: 11/12/2024 Posts: 3345 Rating: (379)	Hi, I think there is no out-of-the-box solution how to check whether data is received or not. You could add some logic to your flow, that checks the data and when there is no new data in the expected cycle, it give you a message (for example). I don't know why the communication stops sometimes, but this could be a good point for a new issue against the modbus node, maybe the developers of the node can say more. I found a node especially for SENTRON PACs, maybe you can test this as well. Best regards!
	Not working for IOT2050 support anymore from March 1st, 2024. I really enjoyed the time supporting you! :)
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