OkiePC
Lifetime Supporting Member
Legend! Swapping them has my Y-Total coming in properly. I'll bookmark that page for the future in case something like this happens again.
Word and byte order always need to be considered when dealing with 32bit values and Modbus. There were only 16 bits in the alphabet when Modbus was invented, so there was never an official standard for how to transport DINTs and REALs. Kinda like "why would anyone need a 40Mb hard drive or more than 128k ram?"
Good drivers like those by Red Lion will let you set up the driver for all the possible combinations, but sometimes you have to do it the old school way.