6–4
Chapter 6 – Initializing the GLC
GLC2400/2500/2600 Series User Manual
The PLC contains and uses the System Data Area to control its GLC-related data.
Different types of devices can be set up in the System Data Area, depending on
the PLC type.
When the GLC uses Memory Link format, this setting is unnecessary.
PLC Connection Manual
(included with screen creation software)
Touch the number for the item desired. The item will change to reverse video, to
show it has been selected.
System Area Size
This field displays the total number of words used for the items selected from the
SYSTEM AREA SETUP
(
Write:
from
to
and
Read
: from
to
).
When you press the Confirm key, the
SYSTEM AREA CONTENTS
screen is
displayed, to confirm the selected items.
•
The System Area settings are enabled only when using
Direct Access format.
•
The selected System Area items, as displayed on the
screen, become the System Data Area.
6.3.2 SYSTEM AREA SETUP
PASSWORD SETUP
The password setting item is used when the GLC switches to the Initialize Memory or
Initialize (
OFFLINE
mode) screens. The password — a number between
0
and
9999
— is a security feature within the
OFFLINE
mode, to protect the GLC settings. If you
do not wish to use this feature, enter the default value,
“0.”
DATA TYPE OF SCREEN NO.
This setting specifies whether BIN or BCD format numbers are used when making
screen changes. Screen numbers
1
to
8999
are available for binary format. Screen
numbers
1
to
1999
are available for BCD format.
System Area Size