6/7/2024 5:25 AM | |
Joined: 3/23/2020 Last visit: 8/19/2024 Posts: 1 Rating:
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Hello! I have same issue with S7-1500. I try to read data from EPC Power inverter with MB_CLIENT block with FC03, 40000 area and I receive 8384 error. I use MB_MODE 0 and tried to read data for example from 40088-40089 addresses to have just small amount of data. If I use Modbus TCP tester in my computer I do not have any problem to read the data. I have monitored the the frames with the Wireshark and compared the frames with Modbus TCP communication that works from Siemens. Only strange thing I found is: [Window size scaling factor: -1 (unknown)]. Does anyone know if that can cause 8384 error? Any idea what could cause this? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 06/07/2024 06:53:20New subject after splitting |
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