Hi all,

I've done a VB application with NModbus where I go to read %M and %MW of a Premium Telemecanique via TCP/IP. I ask if is possible to read system word (%SW) in the same manner or, if not, in others way.

Thanks in advance
Stefano

 

Hey Stefano,

As far as i know it's not possible to read system words by modbus.

But if you connect the system word to a normal word then it works out fine.

For example in structured text:
%mw10:=%sw1;
then you read %mw10 with modbus.
Best regards Patrick