ModBUS RTU

[Jenkins]

Hello all,

When looking at the string generated by the Modbus FB is this:

[] = byte

[address] [Function] [Registor High] [Register-Low] [Length-High] [Length-Low] [CRC-High] [CRC-Low]

According to PI-MBUS-300.pdf, the CRC should be LB, HB. (See Attached Screenshot)

My post is two fold:

1. Does anyone have an example where the worked around this? The slave device is looking for CRC LB,HB.

2. A suggestion is to add a pull down in the Modbus configuration to change the CRC-16 order.

Jenkins