We whant to get value from an honeywell PLC and we choose to use the modbusTCP interface. I did use the POINDexter to verify that i could communicate with my modbus Slave and all seemed good.
I want to read from 2 holding register in the PLC. I am not sure my Pi Point configurations are good since in my system explorer i get a value of configure in the attribute connected to my pi point.
Here is my configuration :
Location 1 : 1 (the interface ID)
Location 2 : 7 ( the modbus slave ID)
Location 3 : 603
Location 4 : 0
Location 5 : 1
instrument tag : the ip address of my modbus slave.
is there anything i missed ?