AS-interface) modules CESA
AS-interface) modules CESA
Key features
Basic principles and features of the bus system
Introduction
The AS-interface system permits the
transfer of power and data using a
single cable.
The advanced technology used to con­
nect stations to the yellow cable and
the low connection costs mean that
even stations with a small number of
inputs and outputs (max. 8 inputs
and 8 outputs per valve terminal with
two chips) can be networked.
The AS-interface gateways from Festo
act as a master for the AS-interface
network and a slave for the higherlevel fieldbus system (PROFIBUS or
CANopen).
From the point of view of the higherlevel fieldbus, the AS‐interface
gateways behave like modular I/O
modules. This makes commissioning
and troubleshooting much easier.
The gateways can be connected to the
controllers CPX-CEC (CANopen master)
and CECX (PROFIBUS DP and CANopen
master) from Festo as well as any
other controllers with a PROFIBUS or
CANopen interface.
For the Festo controllers, the control­
ler functionality is programmed as
normal using the CoDeSys program­
ming tool. Larger systems can be
easily configured with the help of the
AS‐interface control software. The
data of the connected AS-interface
slave devices can be easily diagnosed
for servicing.
AS-interface Specification
version
Inputs
Outputs
Bus cycle
(ms)
No. of slaves,
digital
2.0
2.1
3.0
4/4
4
4/8
4
3
4/8
5
10
20
31
62
62
• Extended AS­interface diagnostic
functions that far surpass the
standard diagnostic functions
according to the AS-interface
Specification
• Simple configuration error history
enables sporadic configuration
errors to be located
• Error counters enable the quality of
data communication on the
AS-interface cable to be monitored
S I/O
No. of slaves,
analogue
31
31
62
248
434
992
Master/slave principle
• Non-proprietary
• No restrictions in terms of cable
layout and/or topology
• Data and power via a single
two-wire cable
• Immune to interference
• Medium: unscreened cable
2x 1.5 mm2
• With 31 slaves, max. 4 inputs and
4 outputs per slave
• Data and power supply for up to
8 outputs per AS-interface string
• With 62 slaves, max. 4 inputs and
3 outputs per slave (A/B operation
as per Specification V2.1)
• Modules for control cabinets (IP20)
and harsh industrial environments
(IP65, IP67)
• With 31 slaves, 4 analogue inputs
or outputs per slave
• Profile 7.3: analogue values
(16 bits) per slave
(as per Specification V2.1)
• Profile 7.4: parameterisable com­
munication profile, e.g. 16x 16 bits
per slave (as per Specification V2.1)
• Profile 7.A.7 permits 4 bits for
digital inputs and 4 bits for digital
outputs on just one A/B slave. The
4 outputs are transmitted in two
A/B bus cycles of 2 bits each. This
extends the cycle time (in the
worst-case scenario) to 20 ms.
• Insulation displacement technology
• Cable length 100 m, can be exten­
ded to up to 200 m through the use
of an extension plug and to up to
500 m through the use of repeaters,
etc.
• Highly effective error control
• Simple commissioning
• Electronic address selection via the
bus connection
-H-
Note
Slaves to Specification V3.0 require
a master to Specification V3.0.
2
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AS-interface) modules CESA
System overview
Components
Fieldbus
Fieldbus/AS-interface
gateway
AS-Interface
Valve terminal CPV with inputs,
standard or A/B mode to
Spec. 2.0, Spec. 2.1, Spec. 3.0
CPX Compact
MPA-S valve terminal with
selectable inputs
CPX Compact
VTSA/VTSA-F valve terminal
with selectable inputs
Compact I/O modules and
valve interfaces
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3
AS-interface) modules CESA
System overview
Master
AS-interface gateways are used to
connect the AS-interface network to
a higher-level fieldbus.
They behave like a master within the
AS-interface network and a slave
within the fieldbus network.
The AS-interface gateways from
Festo conform to the AS-interface
Specification 3.0 and support the
extended addressing range with up
to 62 AS-interface slaves.
Versions
• CANopen
• PROFIBUS
Slaves
Valves
• A universal solution from the
individual valve interface up to a
compact solution with 8 valves
• Integrated inputs on individual
valve interfaces and valve termin­
als CPV, MPA-S and VTSA/VTSA-F
• More inputs thanks to 4-way and
8-way input modules
• On request:
Application-specific valves and
integration solutions
Compact I/O modules, valve interfaces
• Highly compact modules
• Sturdy, encapsulated electrics
• Bus and auxiliary power supply
2x M12 looped through
• Inputs 200 mA
• Outputs 1 A
• 8 inputs M8
• 4 inputs and 3 outputs M12
Accessories
• Addressing device with userfriendly operating and diagnostic
functions for the entire AS-inter­
face, for example to perform the
following tasks in a fully installed
network:
– change addresses
– set outputs
– read inputs
– and many more
4
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• Power supply unit for AS-interface
• Primary switched mode modular
power supply
• Compact, modular and energysaving power supply system for
AS-interface – with integrated
earth-fault monitoring system.
AS-interface load: 4.8 A. Optional
auxiliary power supply 24 VDC,
load: 5 or 10 A
• Installation accessories for
installing the flat cable
Subject to change – 2017/01
AS-interface) modules CESA
Connection technology and addressing
Handling
Operation
AS-interface connections
The AS-interface gateways can be
configured and programmed using the
GSPF software.
An alternative option for program­
ming, commissioning or troubleshoot­
ing is to use the operating buttons on
the gateway and the LED and LCD
displays on the gateway.
Mounting
Extended addressing range
The gateway is mounted using an
H-rail.
There are appropriate lugs on the rear
of the device.
2017/01 – Subject to change
The AS-interface network as well as
the power supply for the gateway and
AS-interface are connected via a
terminal strip.
The extended addressing range en­
ables a total of 62 slaves to be oper­
ated on one AS-interface master. The
masters as well as the slaves must be
designed for the extended addressing
range in order to be able to exploit the
full number of slaves.
With the extended addressing range,
two slaves share one address. Stand­
ard slaves do not have this capability.
They can be connected to a master
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with an extended addressing range,
but also occupy a full address. In
other words, up to 62 slaves with an
extended addressing range but only
31 standard slaves can be connected
to a master with an extended
addressing range.
Slaves with an extended addressing
range can be connected like standard
slaves to a standard master, but must
be configured as an "A" slave.
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AS-interface) modules CESA
Type codes
CESA
—
GW
—
AS
—
CO
Type
CESA
Individual controller
Function module
GW
Gateway
Interface
AS
AS-interface
Bus connection
CO
PB
6
CANopen
PROFIBUS DP
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AS-interface) modules CESA
Technical data
CESA-GW-AS-PB
AS-interface module with PROFIBUS
DP connection
CESA-GW-AS-CO
AS-interface module with CANopen
connection
The AS-interface modules are used to
couple decentralised AS-interface
networks to higher-level controllers
via a fieldbus.
The following fieldbus connections are
available:
• PROFIBUS DP
• CANopen
CESA-…PB
CESA-…CO
General technical data
Operating elements
Status displays
Operating voltage
Current consumption
Protection class
Resistance test
Product weight
Dimensions W x L x H
[V DC]
[mA]
[g]
[mm]
Materials
Housing
Note on materials
CESA-GW-AS-PB
CESA-GW-AS-CO
4 buttons
LCD display
Yellow LED: Projection mode
Green LED: AS-interface operating normally
Green LED: AS-interface voltage OK
Green LED: PROFIBUS master detected
Green LED: Slave programming
Green LED: Voltage ON
Red LED: Configuration error
30 (AS-interface voltage)
200 (from the AS-interface line)
IP20
As per EN 61131-2 (resistance to shock, vibration)
460
75 x 120 x 83
520
85 x 120 x 83
High-alloy stainless steel
Contains PWIS (paint-wetting impairment substances)
RoHS-compliant
Technical data – Interfaces
CESA-GW-AS-PB
CESA-GW-AS-CO
Fieldbus interface
Type
Connection technology
Transmission rate
PROFIBUS to DIN 19245 Part 3
Sub-D socket, 9-pin
9.6 kbps … 12 Mbps
CANopen, Device Specification CiA DS-301
COMBICON plug, 5-pin
10 kbps … 1 Mbps
Programming/diagnostic interface
Type
RS232 serial interface
Operating and environmental conditions
CESA-GW-AS-PB
Ambient temperature
Storage temperature
Certification
CE mark (see declaration of conformity)1)
1)
[°C]
[°C]
CESA-GW-AS-CO
0 … +55
–25 … +85
cULus listed (OL)
C-Tick
To EU EMC Directive
For information about the applicability of the component see the manufacturer’s EC declaration of conformity at: www.festo.com/sp è Certificates.
If the component is subject to restrictions on usage in residential, office or commercial environments or small businesses, further measures to reduce the emitted interference may be necessary.
2017/01 – Subject to change
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7
AS-interface) modules CESA
Technical data
Connection and display components
1
4
2
5
6
3
7
1
2
3
4
5
6
7
RS232 diagnostic interface
Fieldbus connection
Earthing screw
LEDs for status display
LCD display
Operating buttons
Terminal strip for connecting the
power supply and AS‐interface
network
Pin allocation – PROFIBUS
Pin
Signal
Meaning
1
2
3
4
5
6
7
8
9
n.c.
n.c.
RxD/TxD-P
n.c.
DGND
VP
n.c.
RxD/TxD-N
n.c.
Not connected
Not connected
Data transmission line B
Not connected
Data reference potential (0 V)
Supply voltage (+5 V)
Not connected
Data transmission line A
Not connected
Pin
Signal
Meaning
1
V+
24 V DC supply CAN interface
2
CAN_H
Received/transmitted data high
3
Screened
Connection to FE (functional earth)
4
CAN_L
Received/transmitted data low
5
V–
0 V CAN interface
Signal
Meaning
1
+AS-i–
Connection to AS-interface line
2
AS-i +PWR–
Power supply for AS-interface line (max. 8 A)
3
FE
Functional earth
Sub-D socket to DIN 50170
Pin allocation – CANopen
Terminal strip, 5-pin1)
1)
The interface is supplied with voltage via the plug.
Pin allocation – AS-interface
Screw terminal
8
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AS-interface) modules CESA
Technical data
Download CAD data è www.festo.com
Dimensions
CESA-GW-AS-PB
CESA-GW-AS-CO
Type
B1
B2
H1
H2
L1
L2
CESA-GW-AS-PB
CESA-GW-AS-CO
76
76
7
7
125
125
120
120
75
85
55
55
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9
AS-interface) modules CESA
Accessories
Ordering data
AS-interface gateway
AS-interface master with PROFIBUS DP fieldbus connection
AS-interface master with CANopen fieldbus connection
PROFIBUS bus connection
Sub-D plug, angled
Part No.
Type
567032
CESA-GW-AS-PB
567033
CESA-GW-AS-CO
533780
FBS-SUB-9-WS-PB-K
AS-interface
AS-interface flat cable, yellow
100 m
18940
KASI-1,5-Y-100
AS-interface flat cable, black
100 m
18941
KASI-1,5-Z-100
Cable cap for flat cable (pack of 50)
18787
ASI-KK-FK
Cable sleeve (pack of 20)
165593
ASI-KT-FK
AS-interface module as bus termination
567035
CACF-BT-AS
5A
2247681
CACN-3A-1-5
10 A
2247682
CACN-3A-1-10
H-rail to EN 60715
35430
NRH-35-2000
Software for configuring the system and diagnosing the AS-interface slaves during
servicing
567036
GSPF-BS-1-AF-ML
Primary switched mode modular power supply
24 V DC power supply
10
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Subject to change – 2017/01
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