Hello,
I am attempting to communicate with a multi-function transducer using Labview's Modbus library. I initialize the Serial Master without error and receive a blinking green LED on the multi-function transducer once the Read Input Registers.VI has begun (verifies communication has started). However, Read ADU Packet.vi errors out (Error Code 56) before I can receive register values back from the transducer. I have attempted lengthening the timeout, and get the same Error from Read ADU Packet.vi.......Can anyone please offer some assistance? The Modbus register addresses for the multi-function transducer are given in Hex, so I have converted to decimal. For simplicity, I am just attempting to read the Phase A Voltage register in this example. VI, Modbus Protocol for the multi-function transducer, and error code are attached. PN for the multi-function transducer is CRD5110-150-25M.
Thank you!