Processor Communication Options - Allen-Bradley SLC 500 User Manual

2-6 Selecting Your Hardware Components
Publication 1747-UM011C-EN-P - December 2001

Processor Communication Options

The SLC 500 processors support several communication options. The
following sections describe the available physical connections and
protocol options used by the SLC 500 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 3,048m (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 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 5/04
and SLC 5/05)
• Maximum distance between devices is 15.24 m (50 ft.)
• RS-232C (EIA-232) electrical specifications
• modem support
• built-in isolation