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Digi Connect Sensor+ Modbus RTU communication

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I am trying to establish communication between Digi Connect Sensor+ and AutomationDirect Productivity P1-540 PLC via Modbus. I am getting err 129 for all my requests: floating, integer, and boolean. Has anyone worked with P1-540? Thanks.
asked Dec 22, 2017 in Modbus and Industrial Automation by dhpaik New to the Community (0 points)

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