Hello all,
have a SMA inverter and Modbus TCP connection. Get multiple read errors over the day at the 1st connection attempt. Have not been able to eliminate this by parameter variation. Does anybody have some hints what could be done?
I also get such messages, if i use the “Radzio! Modbus Master Simulator”. Thus it seems not to be a binding issue.
Error example:
2019-12-14 23:06:28.310 [ERROR] [wimpi.modbus.io.ModbusTCPTransaction] - execute try 1/1 error: I/O exception: SocketTimeoutException Read timed out. Request: net.wimpi.modbus.msg.ReadInputRegistersRequest@1d91011 (unit id 3 & transaction 49573). Address: /192.168.1.104:502
2019-12-14 23:06:28.310 [ERROR] [wimpi.modbus.io.ModbusTCPTransaction] - execute reached max tries 1, throwing last error: I/O exception: SocketTimeoutException Read timed out. Request: net.wimpi.modbus.msg.ReadInputRegistersRequest@1d91011 (unit id 3 & transaction 49573). Address: /192.168.1.104:502
2019-12-14 23:06:28.325 [WARN ] [rt.modbus.internal.ModbusManagerImpl] - Try 1 out of 3 failed when executing request (ModbusPollerThingHandlerImpl.ModbusPollerReadRequest@263fc6[slaveId=3,functionCode=READ_INPUT_REGISTERS,start=30977,length=10,maxTries=3]). Will try again soon. Error was I/O error, so reseting the connection. Error details: net.wimpi.modbus.ModbusIOException I/O exception: SocketTimeoutException Read timed out [operation ID ebb5aee5-1225-4e64-b0e8-ed71eacfb973]
Thanks and best regards,
Willi