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PLC Inovance “Modbus RTU” Hitachi NE S1 Tutorial

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Hello everyone, in the previous posts showed you how to use the Inovance H3U-3232MT PLC to control a number of different inverters through the Modbus RTU communication protocol.

Today I will continue to guide you to use PLC Inovance to control Hitachi NE-S1 inverter (also has a built-in RS485 port for communication).

Inovance PLC & Hitachi NE-S1 “Connection Diagram”

+ Modbus communication connection diagram between PLC Inovance and Hitachi NE-S1 inverter

Hitachi NE-S1 Modbus Parameters Setting

To be able to control Hitachi NE-S1 inverter by Modbus RTU, we need to set the following communication parameters

  • Modbus Parameters Mapping
  • Select SW5 to “RS485 mode”
Hitachi NES1 “Modbus RTU” Registers Address

PLC Inovance H3U-3232MT “Modbus RTU” Setting

We need to set the communication parameters for the PLC the same as those installed for the Hitachi NE-S1 inverter.

PLC Programming

+ Add Modbus Config

+ Modbus Setting & Programming

Project Video Tutorial



+ PLC Inovance H3U-3232MT Software Download
+ Hitachi NE-S1 Inverter Manual PDF Download

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If in the process of using PLC Inovance to control Hitachi NE-S1 inverter through Modbus RTU, you have any difficulties, please comment below the article, will reply you as soon as possible.

Best Regards!

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