ModbusTCP Driver register swap option

2 posts in this topic

Hi All,

I'm testing Cx-supervisor communication with ODT Micropower PMAC controller on modbusTCP. I'm able to establish the communication using ModbusTCP driver with cx-supervisor.

But, data I'm getting in is Low word first, so not able to convert properly. If anybody has tried any other option/script for this issue?

I did not found any setting in Cx-Supervisor as in Kepserver, shown in attachment below:

How can we swap the registers read as a 32 bit word from controller?

Thank you.

Modbus TCP first word high setting.jpg

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This sounds like “Big-Endian” versus “Little-Endian” format. No I’m not aware of CX-Supervisor or PMAC controller option to swap the Endianess. 



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