User`s manual

Chapter 6 - GP RUN and Errors

GP-477R/577R Series User's Manual

6-2

• To enter OFFLINE Mode, simply touch the top left corner of the GP's

screen within 10 seconds after connecting the GP's power cord.

E.g. After powering up the GP, the initial screen that appears is equipped with a

built-in (invisible) switch in the top left corner. Touch this switch within 10

seconds to change the GP from RUN to OFFLINE mode.

Shown below 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.

this chapter's "Error Messages".

The touch panel does not react when pressed, or the reaction time is

very slow.

(D) OFFLINE displays During RUN Mode

For these first three problems, see the following pages' troubleshooting tables.

For the last problem (D), a SYSTEM ERROR may have developed while

displaying the OFFLINE mode screen.

Chapter 6.4.2 Error Message Details

Note:

Reference

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.

1. Possible Types of Trouble

Reference

*1 If the user has touched the top left corner of the screen within 10 seconds after powering

up the GP, the change to the OFFLINE screen is normal.