Hitachi MICRO-EHV+ - Modbus-RTU Slave

Chapter 3 Programming
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3.15.5 Modbus-RTU slave
Add “Modbus_COM” same as the setting of Modbus-RTU master. Right click on “Modbus_COM” and choose
“Add Device...”. Click “Modbus Serial Device” in the “Add Device” window and [Add Device] button.
Configure each parameter as below. According to the size of “Holding Registers” and “Input Registers”, data area
will be assigned as seen in “Modbus Serial Device I/O Mapping” tab.