Problems with communication with connected devices
Maintenance/Troubleshooting
1-65
1.4.2 Communication fails on specific screens
Is an error code displayed on the GP?
If communication fails on specific screens, first check the error code displayed on the screen.
Cause
If an communication error occurs only when a specific screen is opened, a part or a script may
be using the unsupported device addresses used on the base screen where the error occurred.
Continued
Typical error No.
Main cause
RHAA006 to RHAA007
Check if any noises are generated. Check the cable connection
and connector engagement.
RHAA010 to RHAA012
This error is displayed during Ethernet communication.
Check the port No. and network environment.
RHAA033 to RHAA035
This error is caused by the connected device. For details, see
the GP-Pro EX Device/PLC Connection Manual.
RHAA036 to RHAA037
*1
*1
This chapter describes these errors only. For other errors, see the fol-
lowing section.
)
“1.6.2 Display-related errors u Errors displayed when communication fails”
Address outside of the device range is used.
RHAA038
An attempt was made to read data which is write-only.
RHAA039
An attempt was made to write to data which is read-only.
RHAA040 to RHAA045
This error is caused by the connected device. For details, see
the GP-Pro EX Device/PLC Connection Manual.
RHAA065 to RHAA066
This is a typical error displayed when communication using
Ethernet fails. Check the communication settings and IP
address.
RHAA067 to RHAA070
This is a typical error displayed when communication using
RS-232C/422/485 fails. Check the communication settings
and cable connection.
RHAA070:PLC1:The cable has been disconnected or the target has been
powered off
Error
code
RHAA070:PLC1:The cable has been disconnected or the target has been
powered off
Beep
100
200
300
111
222
Error
code