Presentation, Quantum automation platform 3
description 3 AS-Interface bus master module
Présentation
The actuator sensor Interface (AS-Interface) is used in low-level automation systems as a digital replacement for conventional parallel wiring. This digital serial interface is comprised of a single, unshielded two-wire cable permitting communications to field-level devices (sensors and actuators) with internal intelligence. The technology is compatible with any fieldbus or device network including CAN, Profibus, Interbus, FIP, LON, RS 485 and RS 232.
The 140 EIA 921 00 Quantum AS-Interface module is a single-slot module with one AS-Interface channel per module. The Quantum I/O map interface makes the module useable in local, remote and distributed Quantum I/O drops. This module supports immediate I/O servicing from Quantum CPU for high speed applications such as grain handling, conveyors, press control, weld control, and PC board manufacture.
Network media and topology
AS-Interface uses an unshielded 2-wire cable for data and energy. The protocol is based on a master/slave hierarchy and allows up to 31 slave devices to be connected on a single network. This bus operates up to 100 meters, although additional distances can be achieved through the use of repeaters. AS-Interface is less complex than many of the other open digital communication protocols in the market, since it is tailored to the needs of the devices such as actuators and sensors where connection cost is of greater importance than complexity of the data to be handled.
The topology of the AS-Interface bus is totally flexible and can be adapted to users’ requirements (point-to-point, line, and tree structure topology). In all cases, the total length of all the branches of the bus must not exceed 100 meters without using repeaters.
The AS-Interface cable is a two-wire link on which communication and power are transmitted to the connected devices. It is not necessary for the link to be twisted, and the wire cross-section can be 2 X 0.75 mm2, 2 X 1.5 mm2, or 2 X 2.5 mm2, depending on the current consumption of the devices.
Benefits of the Quantum AS-Interface module
b Useable with all Quantum CPUs. b Module parameter setup through Concept 2.5, Modsoft 2.61, and ProWORX 2.1. b Quantum I/O map interface allows 4 modules per local drop, 4 per remote drop, and 2 per distributed I/O drop. b Enhanced LED Matrix of 32 LEDs displays slave addresses and state of slave input/output bits. b Hot swap function available without damage for all Quantum I/O racks. b Protected against reverse polarity of AS-Interface bus inputs. b Less commissioning time and increased diagnostic capability reduces the overall cost of an automated system. b Automated device reconfiguration (addresses and parameters).
1 Description
2 The 140 EIA 921 00 AS-Interface bus module is comprised of the following:
1 Model number and color code.
2 LED indicators. 3 3 Removable clear hinged door.
4 AS-Interface bus communication port.
4
48189-EN_Ver1.1.fm/2 Schneider Electric Characteristics, Quantum automation platform 3 references 3 AS-Interface bus master module
Charactéristics Model 140 EIA 921 00 AS-Interface bus AS-Interface version supported 1.0
AS-Interface master profile M2
Maximum bus cycle time ms 5
Maximum bus length m 100
Maximum no. of I/O points 124 inputs et 124 outputs
Maximum no. of slaves on the bus 31
Nominal supply bus voltage c V 30
AS-Interface scan time for “n” slaves µs 156 x (n+2) if n <31 esclaves 156 x (n+1) if n = 31 esclaves Transmission rate K 167 approx. bits/s Quantum AS-Interface Module Number of modules per 4 Local drop Remote drop 4 Distribute drop 2
Bus current consumption at 30 V mA 60 typical, 100 max.
Degree of protection IP 20
Polarity reserval protection Yes
Operating temperature °C (°F) 0...+ 60 (+ 32...+ 140)
Agency approvals UL, CSA, e
References Description Reference Weight kg (lb) Quantum AS-Interface master module 140 EIA 921 00 0.450 (0.990)
AS-Interface bus master module user guide 840 USE 117 01 –
140 EIA 921 00
Schneider Electric 48189-EN_Ver1.1.fm/3