Hello everyone!
A lot of people messaged me asking about using the MicroLogix series of PLCs in general and the RSLogix 500 Pro software using Modbus-RTU to communicate with peripherals.
Today I will start a Series using Allen-Bradley MicroLogix 1100 PLC communicating with devices via Modbus RTU.
In this article, I will guide you to connect with an extremely common type of inverter that is Mitsubishi E700 Series
MicroLogix-1100 & FR-E700 “Wiring Diagram”
Mitsubishi FR E700 Modbus Configuration
In order for the inverter to communicate with Modbus-RTU, you need to configure the following parameters:
+ Pr117: 1 (Slave Address)
+ Pr118: 3 (Baudrate 9600)
+ Pr119: 0 (8bit, stop bit = 1)
+ Pr120: 2 (Even)
+ Pr121: 9999
+ Pr122: 9999
+ Pr123: 9999
+ Pr124: 1
+ Pr340: 1
+ Pr549: 1
+ Pr79: 2 (Last Settings)
Register for Control
Register for Monitoring
MicroLogix 1100 Communication Configuration
+ Channel Configuration
MicroLogix 1100 Programming
+ 1s Clock Generation and Automatic Read/Write Distribution
+ Motor Control Command
+ Frequency Write Command
+ Read Data Response Command
Detailed Instruction Video
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Recommended Documents
+ PLC MicroLogix 1100 Manual PDF
+ Mitsusbishi FR E700 Series Manual PDF
Password Extract: plc247.com
If you need any help in the process of connecting MicroLogix 1100 to Mitsubishi inverters, please comment below the article plc247.com will answer you as soon as I read it.
Best Regards!
