Otasuke Pro!> FAQ > GP3000 > RHAA039(Node Name): Error has been responded for device write command (Error Code: (Decimal)[(Hex)] There are read only devices)

FAQ

RHAA039(Node Name): Error has been responded for device write command (Error Code: (Decimal)[(Hex)] There are read only devices)

Error Details

The error message [RHAA039(Node Name): Error has been responded for device write command (Error Code: (Decimal)[(Hex)] There are read only devices)] appeared on the GP3000 screen.

Causes

1.	The device/PLC cannot recognize the write request of the address set on the GP unit.
2.	It may be set to request the address that is out of the PLC's address range on the GP unit.

Actions

Change the type of the device/PLC to the one currently connected.

→ How to check the type of Device/PLC on the GP unit
→ How to change the type of Device/PLC in GP-Pro EX

If the error occurred in all screens, check the addresses set via functions that operate in all screens, such as System Data Area, Alarm, Global D-script, Global Window and Sampling (Historical Trend Graph).

Check the settings of the screen on which the error occurred. Check if the addresses set in the GP unit is within the PLC's address range.

About error codes

・	Error codes are sent from a device/PLC. Please refer to the manual of the device/PLC for the error details.

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