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I have a Digi (Model: Connect WAN 3G IA) connected between a Modbus PLC and my Scada server. The protocol between Digi and the server is Modbus TCP, and Modbus RTU is used between the Digi and the PLC. When I poll a small range of registers, I got good data back. But if I poll one or more registers beyond the range, even though the new range is still valid, I got a bad response: 03 01 EA 0B.
How to interpret these error code: EA 0B?
I suspect the Digi caused the problem when it translated the data.
Thanks.
How to interpret these error code: EA 0B?
I suspect the Digi caused the problem when it translated the data.
Thanks.