Serial Connections - ABB C1900 Installation Manual

2.6 Serial Connections – Fig. 2.4
Information.
• Up to can be connected to a single
10 slaves
• Up to can be connected to a single
32 slaves
• The maximum serial data transmission line length for both
All connections, apart from those for serial data communication, are made as shown in
Make serial data connections as shown in Fig. 2.4. The type of cable used is dependent on the cable length:
Up to 6m –
Up to 300m –
Up to 1200m –
Serial Module
Connections
4
Tx+
5
Tx–
6
7
8
GND
Screen
A – Connections for 3-wire Operation
COMMANDER 1900 Serial Module Terminal Board
Terminal Number
4
5
8
COMMANDER 1900 Serial Module Terminal Board
Terminal Number
4
5
7
6
8
RS422
RS485
standard screened or twisted pair cable
twin twisted pair with overall foil screen and an integral drain wire, e.g. Belden 9502 or equivalent
twin twisted pair with separate foil screens and integral drain wires for each pair, e.g. Belden 9729
or equivalent
OPTO22 Adaptor
Board Connections
Rx+
Rx–
Tx–
Tx+
GND
Fig. 2.4 Serial Module Connections
Connections
TX+
TX–
GND
Table 2.1 Terminal and Pin Identification for 3-wire Operation
Connections
TX+
TX–
RX+
RX–
GND
Table 2.2 Terminal and Pin Identification for 5-wire Operation
2 ELECTRICAL INSTALLATION
adaptor card on a PC.
adaptor card on a PC.
and systems is 1200m.
RS422 RS485
Serial Module
Connections
8 4
9 5
5 6
4
7
3 8
B – Connections for 5-wire Operation
OPTO22 Board Pin Identification
Part Number AC24 AT & AC34
4
8
5
9
3
OPTO22 Board Pin Identification
Part Number AC24 AT & AC34
8
9
4
5
3
Section 4 of the Installation Guide
OPTO22 Adaptor
Board Connections
Rx+
Tx+
Rx–
Tx–
Tx–
Rx–
Tx+
Rx+
GND
GND
Screen
Connections
TX+
RX+
TX–
RX–
GND
Connections
RX+
RX–
TX+
TX–
GND
.
8
9
5
4
3
5