Hello everyone, along with PLC Siemens S7-1200, PLC Mitsubishi FX3U is the most used type of PLC in the world at the moment. Today I will guide you to use FX3U connected to E5CC temperature controller via Modbus RTU (RS485)
I use FX3U-485ADP-MB Expansion Module and use Channel 2 of FX3U PLC. TK4S you must choose the type that supports RS485.
Connection Diagram
Autonics TK4S Modbus RTU Setting
I choose the communication configuration for TK4S and FX3U as: 8bit/Even/1bit
TK4S >>> Press Mode >>> PAr.4
+ AdrS (SlaveAddress): 1
+ bPS (BaudRate): 9.6
+ Prty (ParityCheck): EvEn
+ StP (StopBit): 1
+ rSy.t(ResponseTime): 20
Register for Control
>>> Set Temperature Address = 0000 (hex) / Func = 06
Register for Monitoring
>>> Temperature Response Address = 3E8 (hex) / Func = 04
Mitsubishi FX3U Communication Setting
Since FX3U-485ADP-MB is set up in Channel 2, plc247.com configures as follows
FX3U Programming
+ TK4S Read/Write Distribution
+ TK4S Setting Temperature Command
+ TK4S Temperature Response Read Command
Project Tutorial Video
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Documentation and supporting software:
+ GX-Works2 Software for FX3U Programming
+ Autonics TK4S Series Modbus Manual PDF
Password Extract: plc247.com
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Best Regards!
