Chapter 6 – Initializing the GLC
6–26
GLC2400/2500/2600 Series User Manual
If the correspondence between the GLC and PLC is correct, the same value as in
the Connection List is written to the Validation List.
For example, the value 002D (h) in the Connection List, setup as the 0 bit, 2 bit, 3
bit, and 5 bit, writes to the Validation List.
•
Be certain to setup this data before running.
•
Turn all bits not related to the GLC OFF.
Validation List
This area responds to the correspondence from each connected GLC. In the Vali-
dation List, when the same bit numbers as the Connection List turn ON, the
correspondence is accepted. The Station Numbers of the communicating GLCs
turn their corresponding PLC bit number ON.
Bit 1
Bit 16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Connection List
Validation List
002D (h)
002D (h)
Bit 1
Bit 16
For example, when four GLCs — bits 0, 2, 3, and 5 — are connected, 002D (h) is
written.
Bit 16
002D (h)
0
0
0
0
0
0
0
0
1
0
1
1
0
1
0
0
Bit 1
•
When the Connection List and Validation List do not match, a
COMMUNICATION ERROR occurs. Check the setup again.
•
When changing the connection, first turn all the bits OFF.
STATION NO. (0-15)
This is the setup for the GLC Station Number mentioned above. The setup range is
from 0 to 15, and the only other restriction is the
GLC STATION NO.
must be unique in
the system. If
STATION NO.
’s are repeated, a
COMMUNICATION ERROR
occurs.
The STATION NO. is the number allocated to the particular
GLC unit. This number is not related to the Link Unit Machine
number.