Serial Connections - ABB C1300 User Manual Supplement

C1300
Advanced Circular Chart Recorder

2.6 Serial Connections

Note.

Up to 10 slaves can be connected to a single RS422 adaptor card on a PC.

Up to 32 slaves can be connected to a single RS485 adaptor card on a PC.

The maximum serial data transmission line length for both RS422 and RS485 systems is 1200m (3,937 ft).
All connections, apart from those for serial data communication, are made as shown in Section 5 of the User Guide (IM/C1300).
Make serial data connections as shown in Fig. 2.4. The type of cable used is dependent on the cable length:
Up to 6m (20 ft)
Up to 300m (984 ft)
Up to 1200m (3,937 ft) – twin twisted pair with separate foil screens and integral drain wires for each pair,
Serial Module
Connections
4
Tx+
5
Tx–
6
7
8
GND
Screen
A – Connections for 2-wire Operation
Fig. 2.4 Serial Module Connections
C1300 Serial Module Terminal Board
Terminal Number
4
5
8
Table 2.1 Terminal and Pin Identification for 2-wire Operation
C1300 Serial Module Terminal Board
Terminal Number
4
5
6
7
8
Table 2.2 Terminal and Pin Identification for 4-wire Operation
6
– standard screened or twisted pair cable
– twin twisted pair with overall foil screen and an integral drain wire, e.g. Belden 9502 or equivalent
e.g. Belden 9729 or equivalent
OPTO22 Adaptor
Board Connections
Rx+
Rx–
Tx–
Tx+
GND
Connections
TX+
TX–
GND
Connections
TX+
TX–
RX–
RX+
GND
Serial Module
Connections
8 4
9 5
6
5
4
7
3 8
B – Connections for 4-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
5
4
3
2 Electrical Installation
OPTO22 Adaptor
Board Connections
8
Rx+
Tx+
Rx–
9
Tx–
5
Tx–
Rx–
4
Tx+
Rx+
GND
3
GND
Screen
Connections
TX+
RX+
TX–
RX–
GND
Connections
RX+
RX–
TX–
TX+
GND
IM/C1300–MOD Rev. C