How to fetch data in PLC address like %MW110.0 through ModbusTcp?

Open leo-leonardo opened this issue 1 year ago • 1 comments

Issue Template

In my plc code demo, I have some variables:

How can I get data when I only have these address? I tried and but failed.

How can I transform the %MW address to integer address like 48960?

Aug 29 '24 07:08 leo-leonardo

What type of PLC is being used? Different models may have different rules for mapping PLC address to Modbus address.

Aug 30 '24 03:08 fengzeroz

What type of PLC is being used? Different models may have different rules for mapping PLC address to Modbus address.

I am using Schneider Modicon TM172PBG18R PLC. Can I use this mapping rule to get Modbus address in other PLCs?

Sep 04 '24 06:09 leo-leonardo

What type of PLC is being used? Different models may have different rules for mapping PLC address to Modbus address.

I am using Schneider Modicon TM172PBG18R PLC. Can I use this mapping rule to get Modbus address in other PLCs?

Probably not. You should configure the tag address according to the documentation for this plc.

Sep 05 '24 02:09 fengzeroz

What type of PLC is being used? Different models may have different rules for mapping PLC address to Modbus address.

I am using Schneider Modicon TM172PBG18R PLC. Can I use this mapping rule to get Modbus address in other PLCs?

Probably not. You should configure the tag address according to the documentation for this plc.

Sep 05 '24 03:09 leo-leonardo