Omron CP1H CPU

449
CompoBus/S I/O Link Units Section 7-6
DIP Switch Settings
Use the DIP switch to set the CompoBus/S I/O Link Unit’s node number, com-
munications mode, and the status of output data when a communications
error occurs.
Note Always turn OFF the power supply before changing the DIP switch settings.
Wiring the CompoBus/S
Communications Path
Wire the CompoBus/S communications path as shown in the following dia-
grams.
Pin labels Contents
1
2
4
8
DR
HOLD
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 = ON, 0 = OFF
ON
OFF
ON
OFF
Long-distance communications mode (See note.)
High-speed communications mode
Retain inputs after a communications error.
Clear inputs after a communications error.
ON
1 2 4 8 DR
HOLD
SW1
8 4 2 1
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
NODE NUMBER
SW1
Node Number
Setting
Note: The long-distance communications
mode can be used only when one of
the following Master Units is
connected: C200HW-SRM21-V1,
CQM1-SRM21-V1, or SRM1-C0@-V2.
BD L
BD H
Connect the CompoBus/S Communications Cable.
BD L
BD H
NC (BS+)
NC NC (BS−)
These terminals are not used. They can
however be used as communications power
supply relay terminals.