Pro-face Pro-face ST Series, User Manual

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Chapter 6 Initializing the ST
6-21
Connection List
The word address for the Connection List sets up the number of ST's connected to the PLC, which must be
registered beforehand on the PLC side. When these ST's are connected to the PLC, the corresponding PLC bit
numbers for the particular ST Stations (see below) should be turned on by the PLC.
For example, when these 4 ST units bit 0, bit 2, bit 3, bit 5 are connected, 002D (h) is written here.
Validation List
This area responds to the correspondence from each connected ST. In the Validation List, when the same bit
numbers as the Connection List turn ON, the correspondence is accepted. The Station Numbers of the com-
municating STs turn their corresponding PLC bit number ON.
If the correspondence between the ST 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.
• The word address for the Connection List sets up the number of ST's connected to the PLC,
which must be registered beforehand on the PLC side. When these ST's are connected to the
PLC, the corresponding PLC bit numbers for the particular ST
Stations (see below) should be turned on by the PLC.
• Be certain to setup this data before running.
• Turn all bits not related to the ST OFF.
• When the Connection List and Validation List do not match, a COMMUNICA-
TION ERROR occurs. Check the setup again.
• When changing the connection, first turn all the bits OFF.
0
unit
1
unit
2
unit
3
unit
4
unit
5
unit
6
unit
7
unit
8
unit
9
unit
10
unit
11
unit
12
unit
13
unit
14
unit
15
unit
Bit 15 Bit 0
Connection List
0
unit
1
unit
2
unit
3
unit
4
unit
5
unit
6
unit
7
unit
8
unit
9
unit
10
unit
11
unit
12
unit
13
unit
14
unit
15
unit
Bit 15 Bit 0
Connection List
Validation List