ASI Valve Networking

• Originally developed by a consortium of 11 companies

• After the initial development, the consortium was broken up and the AS-interface association was founded

• AS-interface was released to the market in the Fall of 1993

• AS-interface is an open network

• Supports up to 124 inputs and 124 outputs over 31 nodes or addresses

• Baud rate at 167Kbit (No termination required)

• Scan time < 5ms for a fully loaded system

• Deterministic - each slave adds 150 µs to the scan time

• Can be installed in any topology

• Bus power and communications share the same 2 wire cable

• Standard 16AWG or special AS-interface flat cable can be used

• 990 ft. total bus length (with maximum 2 repeaters)

• High level of noise and temperature immunity make ASi an excellent choice for the process plant environment.

• Each AS-interface node requires its own unique address (master/slave)

• No configuration software required

• Nodes can be addressed using buttons on master, hand-held programmer, or through serial communications

Moniteur Devices, Inc., 36 Commerce Rd., Cedar Grove, NJ 07009. Tel: 973-857-1600; Fax: 973-857-7289.