Schneider Electric Splitter Boxes Specifikace stáhnout pdf (Strana 3)

AS-i Bus

General Information

03/00

AS-i (Actuator Sensor Interface) is a bus made up of sensors and actuators with a very short response

time. AS-i is an open industry standard supported by the AS-i association. The leading manufacturers

of sensors, actuators, programmable controllers and connection accessories are members of this

association. AS-i has the advantage of not being a sole supplier network.

Connection to a higher level bus can be made through network gateways or by using a communication

bus controller (programmable controller, etc.).

The AS-i intelligence is based on an ASIC (Application Specific Integrated Circuit), which can either be

integrated directly into a sensor or actuator (known as an intelligent component), or in an interface

module which can accept up to 8 standard (non-intelligent) sensors and actuators. It is the ASIC which

manages all the communication functions of the sensor or actuator in order to supply information to the

AS-i master regarding switching state, operational availability of the sensor, etc.

Advantages of the AS-i Bus

Cabling: Data is transmitted by a standard cable consisting of a pair of non-twisted unshielded #16 or

#14 AWG (1.5 mm

or 2.5 mm

) wires. The supply to the sensors and actuators is also provided by this

cable. The cable is installed directly on the machine, without having to fit any special components

(splitter blocks, etc.).

Installation: software tools, incorporated in PL7 products, make it possible to select bus components

and to enter the parameters for these components by way of the automation system configuration.

Maintenance: all services offered on the interfaces and “in-rack” I/O programming are included in the

PL7 tools, with screens for diagnostics, channel topology syntax, associated mnemonics, overriding of

variables, debugging zone, etc.

Summary of Advantages:

• Reduction in cost and volume of cabling.

• Reduction in size of enclosures.

• Capability for expanding and adapting existing machines is simplified.

• Increased availability and adaptability of sub-assemblies.

NTERFACE

AS-i Master SupplyGround Fault

Monitor

AS-i Universal

Modules

AS-i Dedicated

Modules

AS-i Dedicated

Modules

AS-i Dedicated

Products

AS-i Bus

Auxiliary

24 Vdc supply

Tools

IP 65 or 67 Machine

IP 20 Enclosure

AMS

9526VGG

ASI

ASIC

1 2 3 4 5 6 7 8 ... 67 68

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