Hitachi SJ200 Series

Inverter MODBUS RTU Driver
GP-Pro EX Device/PLC Connection Manual
47
8 Error Messages
Error messages are displayed on the Display screen as follows: "No. : Device Name: Error Message (Error
Occurrence Area)". Each description is shown below.
Examples of Error Messages
"RHAA035:PLC1: Error has been responded for device write command (Error Code: 2 [02H])"
 Error Codes Unique to External Device
Item Description
No. Error number
Device Name
Name of the External Device where an error has occurred. Device/PLC name is the title of
the External Device set with GP Pro-EX. (Initial value [PLC1])
Error Message Displays messages related to an error that has occurred.
Error Occurrence Area
Displays the IP address or device address of the External Device where an error has
occurred, or error codes received from the External Device.
• IP address is displayed as "IP address (Decimal): MAC address (Hex)".
• Device address is displayed as "Address: Device address".
• Received error codes are displayed as "Decimal [Hex]".
• Refer to your External Device manual for details on received error codes.
• Refer to "Display-related errors" in "Maintenance/Troubleshooting Guide" for details on the
error messages common to the driver.
Error Code Description
02h The specified address does not exist.
21h Invalid data is written in the inverter’s holding register.
22h
These specified functions are not available to the inverter:
• Attempted to change the content of a register that cannot be changed while the inverter
is in service.
• Attempted to use an ENTER command during running (UV).
• Attempted to write in a register during tripping (UV).
• Attempted to write in a register with software lock enabled.
23h
*1
*1 The error code is supported by X200 series and WJ200 series only.
Attempted to write in a register with software lock enabled.