Drives Inverters Guides HMI-SCADA Guides

Proface HMI “Modbus RTU” Hitachi NE-S1 Tutorial

Written by

Hello friends!
HMI Proface is an extremely famous brand originating from Japan, it is commonly used in connecting to different types of PLCs. In addition, most Proface HMIs have an integrated RS485 Port. suitable for controlling devices with Modbus RTU.

Today will guide you to use HMI Proface (Specifically Model Proface GP4402WW) to control Hitachi NE S1 inverter using Modbus RTU standard (Both have built-in RS485 Port.)

Proface HMI & Hitachi NE-S1 “Connection Diagram”

Below is the connection diagram between Proface GP4402WW and Hitachi NES1

Hitachi NE S1 Inverter Parameters Setting

To be able to control the Hitachi NES1 inverter with “Modbus RTU”, in addition to the basic parameters of the inverter (Voltage, Frequency, Current…) we need to set the following communication parameters:

+ Parameters Setting

+ SW5 Selection

Hitachi NES1 Registers Address Table

HMI Proface Modbus Configuration

I recommends that you configure as below for stable communication

  • VFD Run/Stop Coil Address = 1 + 0 = “1”
  • VFD Forward/Reverse Coil Address = 1 + 1 = “2”
  • VFD Reset Coil Address = 1 + 3 = “4”
  • VFD Frequency Setting Word Address = 400001 + 1 = “400002”
  • Output Frequency Word Address = 400001 + 4097 = “404098”
    Output Current Word Address = 400001 + 4098 = “404099
    Output Voltage Word Address = 400001 + 4112 = “404113”

Proface HMI Modbus Example

+ Control Panel

+ VFD Auto Status

+ VFD Running Status

+ VFD Alarm Status

+ VFD Frequency Setting

+ Motor Run Control

+ Motor Stop Control

+ Forward / Reverse Control

+ VFD Reset Control

+ Read Output Frequency

+ Read Output Current

+ Read Output Voltage

Project Video Tutorial


Related Software and Documents

+ Proface HMI Programming Software Download
+ Hitachi NE S1 Manual PDF Download

Password Extract:

Please comment and share this post if you found it helpful. Subscribe to Youtube channel and Website to read new articles of

Thanks and Best Regards!

About the author

Leave a Comment Protection Status