Hello friends!
In the previous article plc247.com wrote a tutorial on how to use MicroLogix 1400 to connect and control Omron E5CC Controller, today I will continue to guide you to use MicroLogix 1400 to control another Temperature Controller is Autonics TK4S.
In this project plc247.com uses MicroLogix PLC Model “1766-L32BXB” and Autonics Controller Model “TK4S-T4SN“. Please pay attention to choose to buy Model Autonics TK4S with RS485 communication support, then we can control it with Modbus RTU
MicroLogix 1400 & Autonics TK4S “Wiring Diagram”
+ You can wire it directly through the MiniDIN-8Pin port or use the 1763-NC01 Module for easier wiring
+ If the communication distance is long, we need to add a 120(Ω) Terminal Resistor
Autonics TK4S “Modbus RTU” Parameters Setting
Below is a table of Modbus RTU (RS485) communication parameters that need to be installed for Autonics TK4S Controller, you can install the same as plc247.com installed.
TK4S >>> Mode >>> PAr.4
+ AdrS = 1 (Modbus Slave)
+ bPS = 9.6 (9600bps)
+ Prty = EvEn (Parity check)
+ StP = 1 (Stop bit)
+ rSy.t = 20 (Response time)
Autonics TK4S Registers Address
Note: MicroLogix 1400 Address = “VFD Address (Dec) + 1“
+ Register Address for Set Temperature
- Funtion Code = 06
- Address = 0000 + 1 = 1
+ Register Address for Temperature Monitoring
- Funtion Code = 04
- Address = 03E8 (hex) + 1 = 1000 (dec) + 1 = 1001
MicroLogix 1400 “PLC Programming”
+ Read/Write Distribution
+ Autonics TK4S Modbus-RTU Control
+ TK4S (1) Temperature Setting
+ TK4S (2) Temperature Setting
+ TK4S (1) Temperature Read
+ TK4S (2) Temperature Read
Detailed Instruction Video
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Documents Reference
>>> MicroLogix 1400 Manual PDF Download
>>> Autonics TK4S Manual PDF Download
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