Allen-Bradley 1770-M11 User Manual download pdf (Page 9)

SLC 500™ Chassis–Based Processors 9

Publication 1747-2.39

Communication Options

The SLC 500 processors support different types of

communication options. The following sections describe the

physical connections and protocol options used by the processors.

Physical Connection Options

Ethernet (10Base–T) channel offers:

• 10 Mbps communication rate

• ISO/IEC 8802–3STD 802.3 (RJ45) connector for 10Base–T

media

• TCP/IP communication protocol

• built–in isolation

Data Highway Plus (DH+) channel offers:

• communication rates of 57.6K, 115.2K, and 230.4K baud

• maximum network length of 3,048 m (10,000 ft.) at 57.6K

baud

• Belden 9463 (blue hose) cable connection between nodes

(daisy chain connection)

• built–in isolation

DH–485 channel offers:

• configurable communication rates up to 19.2K baud

• electrical isolation via the 1747–AIC or 1761–NET–AIC

• maximum network length of 1219m (4,000 ft.)

• RS–485 electrical specifications

• Belden 9842 or Belden 3106A cable connection between

nodes (daisy chain connection)

RS–232 channel offers:

• communication rates up to 19.2K baud (38.4K baud SLC 5/

05)

• maximum distance between devices is 15.24 m (50 ft.)

• RS–232C (EIA–232) electrical specifications

• modem support

• built–in isolation

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 27 28

No comments

Allen-Bradley 1770-M11 User Manual Page 9