Hi.
I am using a Schneider PLC simulator with a simple program and I will like to create a HMI using Ignition designer.
I can connect the PLC via the OPC-UA server, but I am not able to define the variables to read them on the HMI.
Can anyone help me?
Thanks.
Search for “Modbus Specific Addressing” in the manual.
Prefixes for each simple type are:
HR for 4xxxxx registers
IR for 3xxxxx registers
C for 0xxxxx coils
DI for 1xxxxx discrete inputs
Example - For a driver named MyPLC, the OPC Item Path for addressing register 400001 would be:
[MyPLC]HR1
Hope this helps.