Hi everybody! Continuing the Series using Samkoon HMI to control peripheral devices through Modbus-RTU communication protocol, today plc247.com continues to guide you to control Schneider ATV312 inverters by this method.
The HMI model used is Samkoon SK-070HS, both the HMI and the Schneider ATV312 inverter have built-in RS485 communication ports.
Samkoon HMI & Schneider ATV312 “Wiring Diagram”
+ Below is the RS485 wiring diagram between Samkoon HMI and Schneider ATV312 inverter
Schneider ATV312 Modbus Parameters Setting
To be able to control the Schneider ATV312 inverter with Modbus-RTU, we need to set the following communication parameters:
CON – Menu
- Add: 1 (Slave Address = 1)
tbr: 9.6 (Baudrate = 9600bps)
tF0: 8E1 (8bit/even/1bit)
tt0: 3.0 (Comm. timer check Error)
CtL – Menu
- LAC: L3
Fr1: Mdb (Modbus)
Fr2: Mbd
CHCF: SEP
Cd1: Mbd
Cd2: Mbd
Schneider ATV312 Modbus Registers Address
>>> VFD Control Address = 8501 (dec)
- Set Word “8501” = 128 : VFD Fault Reset
= 6 : VFD System Start
= 15 : Forward Run
= 2063 : Reverse Run
= 4111 : Stop
>>> Frequency Setting Address = 8502 (dec)
+ Output Frequency Address = 3202 (dec)
+ Output Current Address = 3204 (dec)
+ Output Torque Address = 3205 (dec)
Samkoon HMI “Modbus RTU” Configuration
We need to set the Modbus-RTU communication parameters of the Samkoon HMI and the Schneider inverter exactly the same.
HMI Programming
+ Panel Design
+ “Alarm” Status
+ VFD Reset Command
+ “Ready” Status
+ “Start System” Command
+ Frequency Settting
+ “Run Forward” Command
+ “Run Reverse” Command
+ “Stop” Command
+ Frequency Output
+ Current Output
+ Torque Output
Project Video Tutorial
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Related Software and Documents
+ HMI Samkoon Programming Software Download
+ Schneider ATV312 Manual PDF Download
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Thanks and Best Regards!
