Troubleshooting; Possible Types Of Trouble - Digital Electronics Pro-face GP-377 Series User Manual

Chapter 6 - GP RUN Mode and Errors
6.2

Troubleshooting

This section describes how to find and resolve problems that may occur on the GP.
If there is a problem on the PLC side, refer to the corresponding PLC manual.

6.2.1 Possible Types of Trouble

Followings are some problems that may occur while using this unit.
(A) No Display
The screen will not display even when the unit is powered On. Also, during
RUN mode, the screen disappears.
(B) No GP/HOST Communication
The GP unit cannot extract data from the host. An error message may
appear on the screen as a result.
(C) Touch Panel Does Not Respond
The touch panel does not react when pressed, or the reaction time is very
slow.
(D) OFFLINE displays During RUN Mode
The GP goes to the OFFLINE mode unexpectedly while operating, or the
GP automatically goes to the OFFLINE mode when the power is turned ON.
For these first three problems, see the following pages' troubleshooting tables.
For the last problem (D), a SYSTEM ERROR may have developed while display-
ing the OFFLINE mode screen.
Be sure that no object has touched the screen accidentally if the GP goes to the
OFFLINE mode without displaying an error message when the power turned ON.
If any object may have possibly touched the top left corner of the screen within 10
seconds after the power turned ON, that may cause the GP to go OFFLINE.
GP-377 Series Users Manual
This chapter's "Error Messages"
Chapter 6.4.2 Error Message Details
6-3