Is an error code displayed on the GP?
If communication fails on specific screens, first check the error code displayed on the screen.
|
Typical Error Codes |
Main cause |
|
RHAA006 to RHAA007 |
Check if any noise is generated. Check the cable and connectors. |
|
RHAA010 to RHAA012 |
This error is displayed during Ethernet communication. Check the port number 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 - RHAA037*1 |
Address outside of the device range is used. |
|
RHAA038*1 |
An attempt was made to read data which is write-only. |
|
RHAA039*1 |
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 - RHAA066*1 |
This is a typical error displayed when Ethernet communication fails. Check the communication settings and IP address. |
|
RHAA067 - RHAA070*1 |
This is a typical error displayed when RS-232C/422/485 communication fails. Check the communication settings and cable connection. |
*1 This chapter describes these errors only. For other errors, see the following.
T.7.1 Settings common to all Display models
Cause
If a communication error occurs only when a specific screen is opened, a part or a script may be using unsupported device addresses on the base screen where the error occurred.
Solution
Follow the procedure below to check the addresses used on the screen on which an error occurred.
With GP-Pro EX, open the screen on which an error starting with RHAA036 to RHAA039 occurred.
From the GP-Pro EX [Project] menu, expand [Utility] and select [Cross Reference].
When the [Cross Reference] dialog box appears, select [All] from the [Target] drop-down list.
Check if any of the following points are true for the addresses displayed in blue according to the error code.
Check if any addresses outside of the range of the device addresses supported by GP-Pro EX are used.
Check if the Data Display or D-script tries to read a write-only device.
Error code RHAA039
Check if a switch or a D-script tries to write to a read-only device.
For the range of device addresses supported by GP-Pro EX, and write-only or read-only device addresses, see the "Supported Devices" section in the corresponding GP-Pro EX Device/PLC Connection Manual.