5–1
GLC2400/2500/2600 Series User Manual
OFFLINE mode is unavailable in a new GLC until the necessary System
data has been transferred from the screen creation software on your
PC. To transfer system data, the PLC unit’s power cord must be plugged
in. When you transfer screen data from your PC to the GLC, the GLC
unit’s System data is also automatically sent.
For information about transferring data to the GLC, see
Chapter 4 –
Data Transfer,
or refer to the
GLC-PRO/PBIII for Windows Operation
Manual
(included with the screen creation software).
Chapter
5 OFFLINE Mode
1. Entering OFFLINE Mode
2. OFFLINE Mode Main Menu
3. INITIALIZATION
4. SELF-DIAGNOSIS
To INITIALIZE your GLC or to perform a SELF-DIAGNOSIS, you must first
switch the GLC to OFFLINE mode. This can be done using either of two meth-
ods; immediately after plugging in the GLC unit’s power cord, or by using the
Forced Reset feature.
Be aware that when changing a Logic Program from RUN to OFFLINE
mode, regardless of the current output hold setting, the GLC unit’s and
the I/O signals’ processes are as follows:
5.1
Entering OFFLINE Mode
When using the RESET command, the timing of the GLC unit’s I/O signal OFF
timing is not fixed and can vary.
ON
OFF
OFFLINE
Mode provides access to the GLC unit’s Initialize menu, Self-Diagnosis
menu, and other GLC features. You will need to change the GLC to
OFFLINE
mode before you can use any of these features.
GLC Condition
RUN
OFFLINE
RUN
I/O Signal
Output from
Logic Program
OFF
Output from
Logic Program