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Adjustement of input voltage
by switches at the power supply unit
Attention !
Brinkmann
Knafla
Power Supply
Hydraulic Power Unit
Hydraulische Krafteinheit
in Standardschaltung
HKE60-STB
18
20.8.2008 HPU
ECR
HKE120-STB
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BESI Marine Systems
Constr. by
D-28259 Bremen
Knechtsand 4
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TMS>>Bus
BESI TMS Field Bus System
Phone +49 (0) 421/57 64 3-0
Fax +49 (0) 421/58 36 21
e-mail info@besi.de
web www.besi.de
BESI Marine Systems
GmbH & Co. KG
Knechtsand 4 • 28259 Bremen
Germany BESI Marine Systems GmbH & Co. KG
BESI Marine Systems GmbH & Co. KG
G E N E R A L I N F O RMAT I O N
The Actuator-Sensor-Interface
(AS-Interface®)
T E C H N I C A L D ATA
The Actuator-Sensor-Interface
(AS-Interface®)
R E F E R E N C E S
Partnership in
Flow Management
F L OW MA N A G EME N T
WWW. B E S I . D E
THE AS-INTERFACE®
is one of the most innovative networking solutions in modern automation
technology. The AS-Interface® was developed in 1990 as a less
expensive alternative for the cable tree and has proved to be extremely
reliable after years of use in numerous industrial sectors.
The original idea was to network simple binary sensors and actuators
with a simple cable that is capable of transmitting data and energy
at the same time.
The AS-Interface® quickly improved on this: intelligent sensors and
actuators can be linked and configured via the AS-Interface®.
Scope for transmission in the network or as auxiliary energy has
been extended. Profiles support simple exchange between products
of different manufacturers.
THE MOST IMPORTANT IMPROVEMENTS:
UP TO 62 SLAVES CAN BE CONNECTED TO ONE MASTER
The AS-Interface® Version 2.1 can address up to 62 slaves in one
network. To achieve this, the slave address 1...31 can be configured
for two slaves each, slave “A” and slave “B”. Thanks to full backward
compatibility, one can of course continue to use existing slaves.
SIMPLE CONNECTION OF ANALOG SLAVES
The AS-Interface® Version 2.1 has been optimized for binary and
analog devices at the lowest automation level. The transmission of
analog signals is as simple as binary value transmission. All data is
recognized and exchanged automatically. No configuration software
is required! Another advantage is that in the past, the analog protocol
had to be processed via a function block in the user software, and
the PLC cycle slowed the transmission process down considerably.
In the version 2.1, analog signal processing is done in the master
(hardware). The analog values are now available in the PLC without
any delay.
MORE DETAILED DIAGNOSTICS
In addition to communication errors, the AS-Interface® Version 2.1
can also recognize periphery errors such as short circuits, overload
and absence of auxiliary voltage.
It can also locate these errors exactly! The maximum cycle time of
5 ms remains the same for existing slaves and those in version 2.1
which are only present once. Slaves that are present as A and B
slaves in the network are addressed every other cycle. Their maximum
refresh time is therefore 10 ms.
DATA AND POWER
AS-Interface® utilizes an unshielded two-connector flat cable for
transmitting data and power. Up to 8 amps can be transmitted via
the bus cable. Several hundred mA per slave can be extracted from
the network. The maximum cable length is 100 meters. It can be
extended with a repeater.
TREE STRUCTURE
Any network topology is possible, particularly the most flexible one
– the tree structure. Every slave can be connected at the optimal
point. Connections can be located anywhere.
SAFE AND INTEROPERABLE
Every single message is checked for potential transmission errors
during data transmission with the AS-Interface®. Errors are automatically
eliminated by repetition. Another highlight is the system’s
interoperable capability: products from different manufacturers can
be operated on a single network.
STANDARDIZATION / STANDARDS
The AS-Interface® already complies with European standard EN
50295. IEC standard 62026-2 is about to be published.
UPWARD COMPATIBILITY
The AS-Interface® is an open system and complements advanced
field buses such as PROFIBUS, Interbus-S, DeviceNet, FIP, CAN etc.
It can act quite simply as a basis for such networks.
NOISE IMMUNITY
The transmission of data and power via the same cable is safe; its
reliability has been proven in theory and years of practical operation.
RATIO OF COST AND EFFECTIVENESS
The AS-Interface® has many advantages compared with conventional
solutions:
• no I/O cards necessary
• simple and cheap set-up of the network and the distribution
through modules
• (replacing the “trunk” and the “branches” of the cable tree)
• no cables, switchgear cabinet volume, cable channels, distribution
channels and connections
• comparatively minor planning work needed
• simple documentation
• simple addition of periphery compared with more complex
systems
• easy installation check
• rapid start-up
• scope for updating and modifying product and manufacturing
changes easily and flexibly.
SIMPLE – QUICK – COST SAVING
Using the AS-Interface® means a potential saving of up to 40 percent!
Controller Slave 1A
62 slaves calls with A/B slaves Master calls A slaves Master calls B slaves
A slaves reply B slaves reply
Master
Slave 2A Slave 31A Slave 1B Slave 2B
Slave 1A Slave 2A Slave 31A Slave 1B Slave 2B
NTERFACE
We associate with nearly all major shipyards
worldwide. Until this moment, more than 4000
ships and offshore facilities have been equipped
with BESI systems. To get a complete reference
list, please get in contact with us.
TECHNICAL DATA
BESI-ID: BESI TMS Field-Bus Sensor
Field Bus System : ASI Actor-Sensor-Interface 2.1 EN 50295
Bus-Voltage: 30V DC
Power consumption: 600mW at 30V DC
Actor / Sensor Voltage: 24V DC from the ASI-Bus
Modules: a) ASI Sensor Units with 6DI/2DO (output max. 24VDC/ 0,5A),
b) Tank level sensors with two analogue inputs 4-20mA.
c) Tank temperature sensors with two PT100 inputs.
Address range: 1-31 ( for 31 actuators or gauging heads, also mixed.)
Amount of networks: Normally no limits.
Ambient temperature: -15°C to 55°C
Storage temperature: -20°C to 70°C
Relative ambient humidity: 30% to 90% non- condensed
Network length: 100m, with repeater or extender up to 500m.
Dimension: 84 x 84 x 70mm
Weight: 150g
Ex-Protection: optional Ex II3D ATEX.
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