ABB AC31 - Page 149

Byte Type Bit Connector / Terminal
4 8 bit output (receive) 0 ... 7 X4 / 16 ... 23
5 8 bit output (receive) 0 ... 7 X4 / 24 ... 31
Table 91: CS31 bus: 24 DI, 16 DO, 3AI1AO, normal
Byte Type Bit Connector / Terminal
1 8 bit input (send) 0 ... 7 X4 / 00 ... 07
2 8 bit input (send) 0 ... 7 X4 / 08 ... 15
3 8 bit input (send) 0 ... 7 X4 / 24 ... 31
4 8 bit input (send, filling byte) 0 ... 7 -
5 8 bit input (send) 0 ... 7 X3 / 3
6 8 bit input (send) 0 ... 7 X3 / 4
7 8 bit input (send) 0 ... 7 X3 / 5
8 8 bit input (send, filling byte) 0 ... 7 -
9 8 bit output (receive) 0 ... 7 X4 / 16 ... 23
10 8 bit output (receive) 0 ... 7 X4 / 24 ... 31
11 8 bit output (receive) 0 ... 7 X3 / 6
12 8 bit output (receive, filling byte) 0 ... 7 -
Table 92: CS31 bus: 24 DI, 16 DO, 4 DI, normal
Byte Type Bit Connector / Terminal
1 8 bit input (send) 0 ... 7 X4 / 00 ... 07
2 8 bit input (send) 0 ... 7 X4 / 08 ... 15
3 8 bit input (send) 0 ... 7 X4 / 24 ... 31
4 8 bit input (send, filling byte) 0...7 -
5 8 bit input (send) 0 ... 3 X2 / 3 ... 6
4 ... 7 -
6 8 bit input (send, filling byte) 0 ... 7 -
7 8 bit output (receive) 0 ... 7 X4 / 16 ... 23
8 8 bit output (receive) 0 ... 7 X4 / 24 ... 31
Table 93: CS31 bus: analog values
Nominal range 0…+10 V Digital value (decimal) Digital value (hexadecimal)
9.961 V 255 FF
9.922 V 254 FE
… … …
0.039 V 1 01
0.000 V 0 00
Relationship between analog voltage and digital representation (applies to analog inputs and
analog output):
AC31 Adapters
Replacement devices: I/O modules > Replacement unit DC501-CS31-AD
2018/09/24 3ADR010122, 8, en_US 149