MicroLogix 1400 "Modbus RTU" Omron E5CC Tutorial

Hello friends!
Monitoring and storing temperature in factories and machines is increasingly necessary in today’s factories, today plc247.com will guide you to use the Allen-Bradley MicroLogix 1400 PLC to connect and control Omron E5CC Temperature Controller

The PLC model plc247.com uses is MicroLogix 1400 “1766-L32BXB” and Omron “E5CC-RX2ASM-802”. You must use Omron E5CC Controller with R485 support to be able to use Modbus-RTU

MicroLogix1100 & Omron E5CC “Connection Diagram”

+ You can use Module 1763-NC01 to easily connect or connect directly to the RS485 port of MicroLogix 1400 (MiniDIN 8Pin – Female)

+ If the communication distance is >50m, there is no need to use a 120Ω Terminal Resistor

Omron E5CC Modbus RTU Configuration

To be able to control Omron E5CC with “Modbus RTU”, we need to set the parameters as shown in the table below:

Omron E5CC Registers Table

Note: MicroLogix 1400 Address = “VFD Address (Dec) + 1“

>>> Set Temperature Address = 2103 (hex) + 1
= 8451 (dec) + 1 = 8452

>>> Read Temperature Present Address = 2000 (hex) + 1
= 8192 (dec) + 1 = 8193

MicroLogix 1400 “Modbus-RTU” Setting

We need to configure the communication parameters for the PLC to be the same as those installed for the E5CC Controller

MicroLogix 1400 “Modbus” Example

+ Auto Read/Write Distribution

+ Read/Write Temperature Control

+ E5CC (1) Temperature Write Command

+ E5CC (2) Temperature Write Command

+ E5CC (1) Temperature Monitoring

+ E5CC (2) Temperature Monitoring

Video Tutorial

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References

Password Extract: plc247.com

If you need assistance in using MicroLogix 1400 PLC to connect to Omron E5CC via Modbus RTU, please comment below the article, plc247.com will reply to you as soon as I read the comment.

Best Regards!