Schneider ATV312 “Modbus RTU” Weintek MT8071iE Tutorial

The inverter ATV312 is an inverter of Schneider Electric that is exported to Europe. Although it has been on the market for a long time, it is still quite popular today with great advantages.

• Schneider ATV312 & PC Connection via Modbus Poll

ATV312 Altivar supports many communication methods Like Modbus, CANopen…
Today plc247.com will guide you to use Weintek MT8071iE HMI to control it via Modbus-RTU RS485 Communication

Connection Diagram MT8071iE & Schneider ATV312

You use Jack RJ45 (ordinary Ethernet cable) to connect to ATV312 VFD

Schneider ATV312 Communication Configuration

In order for ATV312 VFD to be able to communicate, we need to set the following parameters:

COM Menu:

• Add (Address): 1
• tbr (Baud rate): 9.6
• tF0 (Com. Type): 8E1
• tt0 (Timer Error Detection): 3.0

CtL Menu:

• LAC: L3
• Fr1: Mdb (Modbus)
• Fr2: Mdb
• CHCF: SEP
• Cd1: Mdb
• Cd2: Mdb

ATV312 Register Control

For MT8071iE Modbus RTU: HMI Address = “VFD Address + 1”

>>> Control Address = 8501 + 1 = 8502

• Set 8502(hex) = 6 >>> Enable Operation
• Set 8502(hex) = 128 >>> Reset Fault
• Set 8502(hex) = 15 >>> Forward Run
• Set 8502(hex) = 2063 >>> Reverse Run
• Set 8502(hex) = 4111 >>> Stop

>>> Frequency Reference Address = 8502 + 1 = 8503

ATV312 Register Monitoring

• System Ready = 3201 + 1 = 3202 (bit00), Alarm Present (bit07)
• Output Frequency = 3202 + 1 = 3203
• Output Current = 3204 + 1 = 3205

MT8071iE COM3 RS 485 Configurator

Weintek MT8071iE Programming

+ Control Panel

+ ATV312 Enable

+ Lamp Ready

+ ATV312 Reset

+ Fault During Lamp

+ Frequency Setting

+ Motor Run Forward

+ Motor Run Reverse

+ Motor Stop Run

+ Frequency Output

+ Current Output

Video Tutorial

======

Software and Supporting documentotion:

• EasyBuilder-Pro Software for MT8071iE
• ATV312 Manual Basic PDF
• ATV312 Modbus Communication Manual PDF
• ATV312 Register Address PDF
• Schneider ATV312 VFD

Thanks and Best Regards!