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fpga modbus lib, to read holding Registers?

fpga modbus lib, to read holding Registers?

‎11-13-2015 06:44 AM

HI all

I am using the modbus lib for the FPGA. Using the lib to connect to a ABB acsm1 -04 drive. I can write to the registers 16 or 32 bit addressing, and run the motor connected to drive.

But when i try to read from the holding registers, whether its 16bit or 32 bit addressing, data returned  its not making any sense!!!

 

System: Windows 7 64-bit, Labview 2014 14.0f1 (32-bit), NI MODBUS Library 1.2.1

 

Many thanks in advanced.

Douglas

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