Hello everbody!
PLC MicroLogix Series is one of Allen Bradley’s small PLCs, although it is small, it fully supports advanced features such as Ethernet, PTO, RS232/485…
Today plc247.com will guide you to use MicroLogix 1100 PLC to control Siemens Sinamics V20 inverter through Modbus RTU Communication (RS485).
Sinamics V20 & Proface HMI “Wiring Diagram”
You can use the 1763-NC01 output module or connect it directly to the CPU
Sinamics V20 VFD Modbus RTU Configuration
Below are the communication parameters that need to be installed so that we can control Sinamics V20 with Modbus RTU
Registers Control Address
Note: MicroLogix 1100 Address = “VFD Address (Dec) + 1“
- Frequency Setting Address = 100 + 1 = 101
- VFD Control Address = 99 + 1 = 100
+ Set Word 40100 = 1151 >>> Forward Run
= 3199 >>> Reverse Run
= 1150 >>> Stop
+ Set Word 40100 = 1278 >>> VFD Reset
Registers Monitoring Address
In this project we read 3 feedback parameters in a row starting from the following address:
- Frequency Output Address = 23 + 1 = 24
MicroLogix 1100 Modbus RTU Configuration
We need to configure the same communication parameters as Sinamics V20 VFD
MicroLogix 1100 PLC Programming
+ Read/Write Distribution
+ VFD Control Command
+ Frequency Setting Command
+ Data Respense Monitoring
Video Tutorial
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+ Set Word 40100 = 1151 >>> Forward Run
= 3199 >>> Reverse Run
= 1150 >>> Stop
+ Set Word 40100 = 1278 >>> VFD Reset
***How did you know these were the values for FWD,REV,Stop and Reset????***
i can’y find where you found that data anywhere
You need read Sinamics V20 Manual PDF