Problems with communication with connected devices
Maintenance/Troubleshooting
1-61
Is an error starting with RHAA067 to RHAA070 displayed?
Cause
Errors starting with RHAA067 to RHAA070 are displayed when there is a problem with
the RS-232C/422/485 communication.
Solution
(1) From [System Settings Window] of GP-Pro EX, select [Peripheral Settings] and then
[Device/PLC Settings]. When a screen similar to the following is displayed, check that the
communication settings are properly specified by referring to the “GP-Pro EX Device/PLC
Connection Manual”.
(2) Get the GP in offline mode, select [Device/PLC Settings] of [Peripheral Settings], and also
check that the communication settings are properly specified by referring to the “GP-Pro EX
Device/PLC Connection Manual” again.
(3) Check the communication settings of the connected device by referring to the “GP-Pro EX
Device/PLC Connection Manual” or the Device/PLC Connection Manual.
(4) Check that the cable model and wiring are appropriate referring to the “GP-Pro EX Device/
PLC Connection Manual”.
Example: When Q/QnA Serial communication series manufactured by Mitsubishi Electric
corporation is used
Example: When Q/QnA Serial communication series manufactured by Mitsubishi Electric
corporation is used
