4
BUSLINK - AS-Interface INSTALLATION
AS-INTERFACE (AS-Interface)
Pneumatic spool valve island for data exchange via field bus
and standardized AS-Interface protocol.
The connection between a control system (PLC) and several spool
valve islands by means of a field bus allows the transmission of data
with a standard AS-Interface cable :
• control signals to the spool valves,
• information signals from the sensor inputs.
ADVANTAGES
With the many advantages it offers, the Buslink system meets
modern needs for automated installations.
• No bulky and difficult wiring.
• Time and money saved due to direct electric cabling and common
air supply.
• Visual display and quick disconnection for easy maintenance.
• Unit tested and equipped with spool valves at delivery.
COMBINATIONS
Buslink units can be grouped as follows:
• Modules for 3/2, 2x3/2, 5/2 or 5/3 spool valves series 569 (ØM5 or
instant fittings) - 570 (G1/8 or instant fittings) - 571 (G1/4).
OPTIONS
• Island with air supplied at two different pressure rates.
• Island with external air supply for pilot pressure.
COMMUNICATION CHARACTERISTICS
Communication protocol : AS-Interface (bidirectional mode)
Transmission : flat AS-Interface cable (yellow, 2 wires)
Bus structure : any structure according to AS-Interface standards
Max. number of spool valve islands : 31 nodes (1 valve island can have 2 nodes)
Number of valves per island : 4 to 8
Number of inputs/outputs : 0, 4 or 8 inputs
Max. bus cable length : 100 m (300 m with repeaters)
Island addressing (participants) : AS-Interface master
Compatibility with control system : no modification of current programmes
Compatible equipment : various options
ELECTRICAL CHARACTERISTICS
Supply voltage : 24 V DC, ±10% at the island.
Supply to the valves with an additional flat AS-Interface cable (black, 2 wires).
Max. ripple ratio : 10 %
Consumption : 79 mA per valve and 9 mA per input
Coil insulation class : F
Protection : IP65
Electrical insulation of the inputs : optocouplers
Peak voltage suppression : integrated in the island for each coil
Additional 24 V supply connection : vampire-type panel connector for AS-Interface cable (black cable)
Bus connection (IN/OUT) : vampire-type panel connector for AS-Interface cable (yellow cable)
Input connection : 5-pin female panel connector M12
Earth connection : earthing screw on the pneumatic subbase
Electromagnetic compatibility : in accordance with the EU directive EMC 89/336/EEC
CE identification
PNEUMATIC CHARACTERISTICS
Fluid : air or neutral gas, filtered at 30 µm, lubricated or not
Operating pressure : 1.5 to 8 bar (2.5 to 8 bar with 3/2 NO spool valves and series 569 functions 5/3)
Flow rate (Qv at 6 bar) series 569 : 175 l/min
series 570 : 600 l/min (3/2: 400 l/min - 2x3/2 : 550 l/min)
series 571 : 1050 l/min
Allowable temperature : +5 °C to +50 °C
ACCESSORIES: see following page
5
3
1
A
S
I
IN
1
-1
IN
1
-2
P
W
R
IN
1
-3
IN
1
-4
IN
2
-1
IN
2
-2
IN
2
-3
IN
2
-4
24V =
ASi
yellow cable
black cable
AS-Interface
supply
AS-Interface
master
AS-Interface bridge to other protocols
(Profibus-DP, FIPIO, Device NET etc.)