Issue
The M340 and M580 Modbus Serial and Modbus TCP/IP protocols require particular settings in Vijeo Designer in order for a Harmony/Magelis HMI to communicate to them via IEC61131 Syntax.
Product Line
Modicon M340 PLC, Modicon M580 PLC, Harmony/Magelis HMI (all series), Vijeo Designer (all versions)
Environment
Modbus protocol setup in Vijeo Designer
Resolution
To access the Modbus Equipment Node for Modbus TCP/IP, double-click on the IO Manager -> ModbusTCPIP01 -> ModbusEquipment0x node.
Likewise, for Modbus RTU (Serial), double-click on the IO Manager -> ModbusRTU0x-> ModbusEquipment0x node.
In this window, confirm the following 3 settings:
- Tick the IEC61131 Syntax checkbox (this uses %M, %MW addressing instead of “00001, 40001” addressing)
- Select Addressing Mode = 0-based (Default) – The M580 starts at %MW0 (unlike some older PLCs that start at %MW1).
- Choose Double Word word order = Low word first
Released for: Schneider Electric Vietnam
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.
