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AS-i, The Simplest Automation Networking Solution
Dated: 10/30/2008
What is AS-i?
 Actuator Sensor interface (AS-i) is
a simple wire reduction system
 Easily replaces point to point
wiring and complements existing
higher level bus systems
 Reduces wiring and eliminates
multiple termination points
 Connects inputs and outputs via a
single two wire flat cable
 Easy to install and commission
AS-i vs. Point-to-Point Wiring
Point-To-Point Wiring
 Each bit of data needs its own
wire.
 Power is run separately (more
wires).
 Additional I/O points require
additional PLC I/O cards.
 Additional PLC I/O cards may
require the use of a larger PLC
rack or multiple racks.
Less Material & Labor
 Smaller PLC rack.
 Smaller enclosures.
 Less wire.
 Standardized patch cables.
 Potential to eliminate J-boxes.
 Simpler documentation.
 Less commissioning time.
Simple Installation & Expansion
 One cable for many bits of data.
 One master replaces many PLC
I/O cards = less wiring.
 Quick disconnect at modules
vs. point-to-point terminations.
 I/O modules connect easily to
the bus via insulation
displacement connectors (IDC).
Simple Installation & Expansion
 Modules connect easily to the
bus via insulation displacement
connections (IDC).
mechanical coded
flat cable
 Mechanically coded flat cable
- AS-i and additional power
supply
 Insulation displacement
connectors
- simple & safe
- protection class up to IP67,
- cables reseals up to IP65
piercing connectors
AS-Interface
electro-mechanics
Easier Troubleshooting
 Less wire means less
opportunity for error, less
places to look for errors.
 Communication errors are
captured by the master.
 Indicating lights on modules
and masters communicate
system and module status.
Reducing overall machine cost
AS-i can reduce up to 50% of the overall machine cost
Wiring Labor Cost
X
Wire labeling Cost
X
Machine Assembly Labor Costs
X
Machine Testing Labor Cost
X
Machine Disassemble Cost
X
Shipping Cost
X
Customer Site Start up/ Commisioning Labor
X
Travel Cost
X
Time = Money
AS-i Installation
AS-i Installation
Overview of AS-i system components
AS-i Components
AS-i Specifications
 100 meters max. length per
segment.
 With repeaters up to 300M
 Up to 62 node addresses per
network
 248 inputs and 248 outputs
 AS-i transmits only 4 data bits
per message.
 Auto Address replacement
 Topology free network
 Single two wire unshielded
cable carries input power and
communication
 Max. of up to 10ms response
time
Control Integration
Two methods to connect AS-i to
your existing platform
Method 1: Direct PLC connection
 Fits into standard card slot in a PLC
rack
 Replaces traditional I/O cards
 I/O are mapped directly to I/O tables
 Programmed and configured
through standard PLC software
 No 3rd party software needed
 Available for most PLC platforms
Control Integration
Two methods to connect AS-i to
your existing platform
Method 2: Complements current
fieldbus networks
 Gateway becomes a single node on
the fieldbus network, up to 992 I/O
points per gateway
 Reduces the price per point for
connecting sensors and actuators
 Available for DeviceNet, Profibus,
Ethernet /IP, Modbus TCP, and
CanOpen
ifm Controller-e gateway
Large Integrated Display
Diagnostic LEDs
Connection to Fieldbus
(Ethernet IP connection shown)
AS-i and 24 VDC
connections
AS-i power supply
After selecting the platform, pick an AS-i power supply
 An integral and required part of an AS-i system
 Specialty 30 VDC power supply use to couple the master data for
transmission over the AS-i cable
 2.8, 4 and 8 Amp versions available
 Provides power to all input devices and modules on the system
AS-i power supply
Family of I/O modules
Choosing the correct I/O module to fit your application
Cabinet
Compact
ProcessLine
SmartLine
PCB
New ClassicLine
Airbox
Control Cabinet Modules
 Up to 4 inputs and 4 outputs
 Analog inputs/outputs available in 4-20mA or 0-10V
 Solid-state outputs protected against short circuits
and reverse polarity
 Integrated addressing port
 Inputs to be supplied either by the AS-i network or
24 VDC externally
 Relay outputs versions available; rated up to 230 V
 LED indication for short circuit and power
 DIN rail mount
 Connection via removable screw terminals,
Combicons
New ClassicLine Field Modules
 Mounting technology does not require tools for
installation
 Three directions of rotation for flat cable
 DIN rail mount
 Up to 4 inputs and 4 outputs
 Up to 2 analog (4-20mA) inputs
 1 or 2 amp rated outputs available
 Digital inputs and outputs with LEDs for status
indication
 Integrated addressing port allows setup while
connected
New ClassicLine Airbox Modules
 Mounting technology does not require tools for
installation
 Three directions of rotation for flat cable
 DIN rail mount
 Up to 4 inputs per Pneumatic module
 Different valve types include 3/2, 5/2, 5/3 way
 Digital inputs and outputs with LEDs for status
indication
 Integrated addressing port allows setup while
connected
Compact Modules
 Low profile design
 Up to 4 inputs and 4 outputs per module
 Fully potted units holds up to harsh environments
 Increase resistance to shock and vibration
 High amperage outputs rated for 2 amps
 Digital inputs and outputs with LEDs for status
indication
 Module base included
ProcessLine Modules
 IP69K protection rating
 Up to 4 inputs and 3 outputs
 Up to 4 analog (4-20mA) inputs
 Quick mounting with only one screw
 Full 316 Stainless Steel housing
 Ecolab tested to resistance to common cleaning
agents found in the food industries
Benefits to Equipment builders
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Reduces engineering time
Reduces BOM cost
Easy commissioning for new machines
Easy trouble shooting
No additional software
Benefits to End Users
 Reduces maintenance cost
 Easy troubleshooting
 Easy expansion of existing
systems in house
 Training seminars offered by ifm efector
Complete sensor solution provider
ifm can also provide your sensing component and cable needs
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Photoelectric
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