Hello, I am current trying to read in a U64, 4 consecutive holding registers, starting at 0xDF21 ~ 0xDFC0, where I need to do bitwise referencing afterwards. Is this the correct opcPath? Modbus ID = 255. I am wanting to read bit 0.
[U01B01_BAMS]255.HRUS_6457121.0
It would be something ugly like [U01B01_BAMS]255.HRI_6457121.0
or [U01B01_BAMS]255.HRUI_6457121.0
. The prefix is HRI_64
or HRUI_64
.
https://docs.inductiveautomation.com/display/DOC81/Modbus+Addressing
Why do you need to read all four registers to get at one bit?
Great, thank you Kevin.. looks I just needed to substitute the HRUS for HRUI. Thank you very much!