B+W BWU1568
B+W BWU1568
B+W BWU1568
B+W BWU1568
B+W BWU1568
B+W BWU1568
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BWU1568

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The Bihl+Wiedemann BWU1568 is a stainless-steel ASi-3 to PROFIBUS gateway with two ASi masters, redundant power from separate ASi supplies, RS232 diagnostics, duplicate-address recognition and an integrated ASi fault detector.
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Technical specifications for BWU1568

  • Manufacturer:
    BIHL+WIEDEMANN
  • Part Number:
    BWU1568
  • Product Family:
    BIHL+WIEDEMANN
  • Product Type:
    ASi-3 PROFIBUS Gateway in Stainless Steel, 2 Masters
  • Stock:
    1
  • Housing:
    Stainless steel for DIN-rail mounting
  • ASi Networks and Masters:
    2 ASi networks, 2 ASi-3 masters
  • Fieldbus Interface:
    PROFIBUS according to IEC 61158 and IEC 61784-1
  • Baud Rate:
    9.6 KBaud to 12,000 KBaud with automatic recognition
  • DP Function:
    ASi node I/O mapping plus diagnosis and configuration through the DP master
  • ASi Operating Voltage:
    30 V DC
  • Supply Topology:
    No integrated decoupling; maximum 8 A per ASi network; redundant supply
  • Diagnostic Interface:
    RS232
  • Duplicate Address Recognition:
    Yes
  • ASi Fault Detector:
    Yes
  • ASi Cycle Time:
    150 microseconds multiplied by number of ASi-3 nodes plus 2
  • Applied Standards:
    EN 61000-6-2 and EN 61000-6-4
  • Protection Category:
    IP20
  • Shock and Vibration:
    EN 61131-2
  • Insulation Voltage:
    at least 500 V
  • Dimensions:
    7.5 × 12.0 × 8.3 cm
  • Operating Temperature:
    0 to 55 °C
  • Storage Temperature:
    minus 25 to plus 85 °C
  • Weight:
    0.46 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Networks Power Diagnostics Application
  • Two ASi-3 masters for two independent ASi networks
  • PROFIBUS interface with automatic baud-rate recognition
  • Stainless-steel DIN-rail housing with IP20 protection

BWU1568 connects two ASi networks to PROFIBUS and provides independent network supervision.

Its dual-master architecture retains diagnostic access if the power supply for one ASi network fails.

Confirm the PROFIBUS configuration, ASi addressing and both network power supplies before installation or replacement.

Availability, condition, price, and shipping time for BWU1568 are confirmed during quotation.

Bihl+Wiedemann BWU1568 AS-i 3.0 PROFIBUS Gateway Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Connects two ASi-3 networks to one PROFIBUS system
  • Maps ASi process data into the PROFIBUS I/O image
  • Supports complete diagnosis and configuration through the DP master
  • Uses separate ASi power supplies for the two networks
  • Supports up to 8 A per ASi network in the documented topology
  • Maintains diagnostic functions when one ASi supply fails
  • Provides RS232 diagnostics and configuration
  • Recognizes duplicate ASi node addresses
  • Detects ASi line interference and external voltage faults
  • Dual-network ASi sensor and actuator integration with PROFIBUS PLCs
  • Distributed I/O systems requiring redundant ASi network power
  • Legacy machine-control networks using BWU1568 GSD-based configuration
Description
BWU1568 is a Bihl+Wiedemann ASi-3 PROFIBUS gateway in a stainless-steel DIN-rail housing with two ASi masters.

It connects two ASi networks to PROFIBUS, supports redundant supply from separate ASi power supplies, provides RS232 diagnostics and configuration, recognizes duplicate ASi addresses, and monitors the ASi line for faults.

The manufacturer lists BWU2545 as a successor but does not recommend the successor as a direct spare-part replacement. Verify the installed GSD, ASi network topology, redundant-power wiring and parameter set before exchange.
Alternative Names
BWU1568 Bihl+Wiedemann BWU1568 BWU1568 ASi-3 PROFIBUS Gateway AS-i 3.0 PROFIBUS Gateway BWU1568
Technical notes
BWU1568 is an archived Bihl+Wiedemann gateway. Its identified successor is not a direct spare-part replacement, so verify the installed network configuration before substitution.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Is BWU2545 a direct drop-in spare for a failed Bihl+Wiedemann BWU1568?
No. Bihl+Wiedemann names BWU2545 as the successor but does not recommend it as a direct spare; plan an engineering migration covering wiring, GSD and control configuration instead of a like-for-like swap.
What should be backed up before removing a Bihl+Wiedemann BWU1568?
Record the PROFIBUS address and bus parameters, save the PLC hardware configuration and GSD assignment, document both ASi network configurations and slave addresses, and photograph all power and network terminals.
Why might a replacement Bihl+Wiedemann BWU1568 show ASi faults even when the PROFIBUS connection is healthy?
Check each ASi power supply, polarity, network wiring, duplicate slave addresses, earth faults and noise; the two ASi networks have separate field-side conditions that can fail independently of PROFIBUS.
What should be checked if one ASi network on a Bihl+Wiedemann BWU1568 drops out intermittently?
Trend the corresponding ASi supply voltage, inspect loose terminals and cable damage, review fault-detector indications, check network length and loading, and compare the affected network with the stable channel.
How can duplicate-address problems be prevented after replacing a Bihl+Wiedemann BWU1568 or an ASi slave?
Document the installed address map before work, commission one replacement slave at a time, use the gateway's duplicate-address diagnostics and confirm the PLC sees the expected slave list before restarting production.
What can prevent a new Bihl+Wiedemann BWU1568 from exchanging data with the existing PROFIBUS master?
An incorrect node address, missing or different GSD assignment, mismatched module configuration, bus termination, baud-rate or cabling problems can block cyclic data even though the gateway is powered.
What evidence should be requested when sourcing a stored or refurbished Bihl+Wiedemann BWU1568?
Request the full label and device ID, power-on photographs, display and keypad condition, PROFIBUS and both ASi-port test results, terminal condition, repair history and confirmation that configuration memory is functional.