IO connector pin table (all IO board types)
Pin
Description
1
potential free DO1
N
ormally
C
lose contact pin
2
potential free DO1
C
ommon pin
3
potential free DO1
N
ormally
O
pen contact pin
4
potential free DO2
N
ormally
C
lose contact pin
5
potential free DO2
C
ommon pin
6
potential free DO2
N
ormally
O
pen contact pin
7
potential free DO3
N
ormally
C
lose contact pin
8
potential free DO3
C
ommon pin
9
potential free DO3
N
ormally
O
pen contact pin
10
potential free DO4
N
ormally
O
pen contact pin
11
potential free DO4
N
ormally
O
pen contact pin
12
DI1 input
13
DI2 input
14
DI3 input
15
DI4 input
16
DIs common GND
Difference between IOx and IOxR board is in operation of first DO (DO1).
Page:
Company:
Device:
Document:
Code:
Date:
22
User manual STRMUED1
Picture 19: (left) IO1, IO2 & IO4 board schematic
Picture 20: (right) IO1R, IO2R & IO4R board schematic
(difference is in DO1 relay)