• Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      sales1@apterpower.com
      +86 181 0690 9650
      Request a

      Fast Quote

      Manufacturers
      ALL MANUFACTURERS
      • Please try to be as accurate as possible with your search.
      • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
      • We can't find any results for “”.
        Manufacturers
        sales1@apterpower.com +86 181 0690 9650
        Choose a manufacturer
        ALL MANUFACTURERS
        Ask our team:
        • Phone: +86 181 0690 9650
        • E-Mail sales1@apterpower.com

        BWU1777

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bihl+Wiedemann BWU1777 is a AS-i 3.0 PROFIBUS Gateway housed in a robust stainless steel casing, functioning as a dual-network master to interface standard sensor and actuator networks with higher-level fieldbuses.
        Get a quick price for BWU1777
        Quantity
        *E-mail
        Company
        *Mobile
        *Content
        Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
        Get a Quote
        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for BWU1777

        • Manufacturer:
          BIHL+WIEDEMANN
        • Part Number:
          BWU1777
        • Product Family:
          BWU series
        • Product Type:
          AS-i3.0 PROFIBUS DP Gateway/Link
        • Number of Masters:
          2 × AS-i 3.0 masters
        • Max Current per Network:
          4 A
        • Data Decoupling:
          Integrated
        • Power Supply Support:
          Standard 24 V power supply (for short cable applications)
        • Address Detection:
          Duplicate AS-i address recognition
        • Protocol:
          PROFIBUS DP
        • Standards:
          IEC 61158, IEC 61784-1
        • Baud Rate:
          9.6 KBaud – 12,000 KBaud (auto-detection)
        • Data Mapping:
          AS-i slave I/O data to PROFIBUS process image
        • Weight:
          0.4 kg
        • Estimated shipping dimensions:
          7.5 × 12 × 8.3cm
        • Tariff Code:
          8537101190
        • Country of origin:
          Germany
        • 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 Specifications Applications Configuration & Programming Safety & Compliance

        Features:

        • Gateway Between Dual AS-i 3.0 Networks and the PROFIBUS Fieldbus
        • Integrates Dual Master Capability with Integrated Power Supply and Data Decoupling
        • Functions Alongside Standard 24V Power Supplies and AS-i Diagnostic Tools
        The BWU1777 operates as the AS-i 3.0 PROFIBUS Gateway in industrial automation systems, providing reliable protocol conversion between AS-i sensor/actuator networks and the higher-level PROFIBUS DP master. It continuously bridges I/O data from two independent AS-i circuits to the PROFIBUS process image while supporting baud rate auto-detection from 9.6 KBaud to 12,000 KBaud according to IEC 61158 and IEC 61784-1 standards. Seamless network integration is standard with the BWU1777, however using its dual AS-i master architecture allows simultaneous management of two AS-i networks powered from a single supply. The BWU1777 incorporates integrated data decoupling, enabling direct operation with standard 24V power supplies for short cable applications without requiring specialized AS-i power units.

        The BWU1777 provides essential gateway functions common to the entire AS-i to PROFIBUS communication path, and is a critical component of the monitoring and control infrastructure, directly affecting the proper, normal operation of the overall automation system. One BWU1777 gateway is required per PROFIBUS segment to interface with dual AS-i networks.

        For dual AS-i network applications, the BWU1777 contains two independent AS-i 3.0 masters internally integrated within the single stainless steel enclosure. In addition to standard single-network gateway operation, the dual-master configuration also performs comprehensive diagnostic monitoring. The BWU1777 diagnostic system continually monitors the health of both AS-i circuits using its built-in earth fault detector, noise detector, and duplicate address recognition. If the system detects that an AS-i node has a duplicate address, a ground fault, or line disturbance outside normal tolerance levels, it will automatically flag the error on the LCD display, update the LED status indicators, and report the event through the PROFIBUS diagnostic channel.

        The BWU1777 Bihl+Wiedemann AS-i3.0 PROFIBUS DP Gateway/Link may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bihl+Wiedemann BWU1777 AS-i3.0 PROFIBUS DP Gateway/Link Manuals,Datasheets,Link 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.
        Bihl+Wiedemann BWU1777 AS-i3.0 PROFIBUS DP Gateway/Link Specs

        General

        • Manufacturer Bihl+Wiedemann
        • Model BWU1777
        • Condition New Original ready stock
        • Product Family BWU1567,BWU1775,BWU1599
        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.
        • Fieldbus Bridging: Connects up to 124 AS-i slaves (62 per network) directly to a higher-level PROFIBUS DP controller, such as a Siemens S7 PLC.
        • Cost-Optimized Machine Layouts: Utilizes a specialized power decoupling technique that powers two separate AS-i strands using a single standard power supply.
        • Harsh Environments: Deployed in material handling, assembly lines, and packaging machinery requiring decentralized topology and IP20-rated stainless steel protection.
        • Active Diagnostics: Continuously monitors line health for predictive maintenance applications in automated logistical systems.
        • Slave Addressing: System operators can assign addresses directly via the gateway's built-in graphical LCD and button interface, eliminating the need for separate handheld tools.
        • Network Setup: Hardware configuration requires the device-specific GSD file (15671745.gsd) imported into engineering environments like Siemens TIA Portal or Step 7.
        • Software Tooling: Detailed system analysis, parameter shifting, and initial configurations are managed using Bihl+Wiedemann's AS-i Control Tools Software Suite connected via the front-facing RS232 diagnostic interface.
        • Data Mapping: The gateway automatically maps digital and analog I/O points into standard PROFIBUS cyclical input/output image registers.
        • Intelligent Network Diagnostics: Built-in hardware detection algorithms look for duplicate slave addresses, earth leakage/ground faults, and communication line noise.
        • Functional Safety Context: This specific model does not feature an integrated functional safety monitor or PROFIsafe processing. If safety functions (like E-stops) are needed, you must pair it with dedicated external safety monitors or look to successor units like the BWU2546 / PROFIsafe versions.
        • Industrial Certifications: Engineered to comply with electromagnetic compatibility standards EN 61000-6-2 (immunity for industrial environments) and EN 61000-6-4 (emission standard).
        • UL Electrical Constraints: Requires external protection using an isolated PELV/SELV source (≤ 30 VDC) with a maximum 3 A over-current fuse protection unless a standard NEC Class 2 source is utilized.
        Description
        The Bihl+Wiedemann BWU1777 is designed to handle the integration challenges between AS-i 3.0 sensor/actuator networks and PROFIBUS fieldbus systems in industrial automation environments. The BWU1777 addresses the problem of seamlessly bridging low-level AS-i devices with higher-level PROFIBUS control architectures, eliminating the complexity of managing separate gateways for dual AS-i networks. By consolidating two AS-i 3.0 masters into a single unit, the BWU1777 solves the issue of powering and managing two independent AS-i circuits from one centralized device, making it ideal for compact control cabinet installations where space efficiency and streamlined wiring are critical.

        As a PROFIBUS gateway, the BWU1777 complies with IEC 61158 and IEC 61784-1 standards and automatically detects baud rates ranging from 9.6 KBaud to 12,000 KBaud. The BWU1777 maps AS-i slave I/O data directly into the PROFIBUS process image, enabling transparent data exchange with the DP master while supporting complete diagnostic and configuration functions. Each AS-i network on the BWU1777 supports a maximum current of 4A, and the integrated data decoupling allows the unit to operate with standard 24V power supplies for short cable applications, reducing the need for specialized AS-i power supplies in specific setups.

        The BWU1777 is engineered to resolve common AS-i network reliability issues through built-in diagnostic capabilities. The BWU1777 features a duplicate AS-i address detection function, which identifies when two nodes share the same address—a critical problem when using handheld addressing devices. Additionally, the BWU1777 incorporates an AS-i earth fault detector and an AS-i noise detector to monitor line disturbances and external voltages, preventing unexpected downtime caused by wiring faults or electromagnetic interference. These monitoring functions make the BWU1777 particularly suitable for maintaining stable communication in demanding industrial environments.

        For ease of commissioning and maintenance, the BWU1777 is equipped with an LCD display that shows AS-i slave addresses and error codes, along with comprehensive LED indicators for power, PROFIBUS communication, configuration errors, AS-i voltage status, AS-i normal operation, automatic address programming enable, and configuration mode. Four operation buttons on the BWU1777 facilitate local debugging and control. 
        Alternative Names
        BWU1567 BWU1775 BWU1599 BWU1653 BWU1773 BWU1891 BWU1568 BWU1776 BWU1660 BWU1654 BWU1774 BWU1569 BWU1601 BWU1655
        Technical notes
        This Bihl+Wiedemann BWU1777 gateway is engineered to manage two separate AS-i networks simultaneously, providing seamless, high-speed data transmission and reliable network coupling in demanding industrial automation setups.
        Exceptional Service

        Our Mission

        • 100% Satisfaction

          We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.

        • Trust Guaranteed

          Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.

        • Expertise

          Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

        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.
        VIEW ALL FAQS
        Why is the BWU1777 suitable for large automation systems?
        In applications such as packaging lines and conveyor systems, a large number of field devices often create complex wiring structures. The Bihl+Wiedemann BWU1777 reduces wiring requirements by consolidating multiple decentralized I/O points into a single centralized fieldbus interface.
        How does the BWU1777 reduce installation cost?
        The Bihl+Wiedemann BWU1777 supports dual AS-i circuits with one master and one power supply. This design lowers the need for additional hardware, saves control cabinet space, and helps reduce overall system installation and operating costs.
        What diagnostic functions are available in the BWU1777?
        The Bihl+Wiedemann BWU1777 includes built-in diagnostic tools such as double address detection, earth fault monitoring, and EMC monitoring. These functions help detect communication problems and improve maintenance efficiency.
        How does the BWU1777 support system reliability?
        The Bihl+Wiedemann BWU1777 continuously monitors network status and identifies faults directly on its graphical display. This reduces troubleshooting time, minimizes downtime, and supports stable operation in harsh industrial environments.

        You May Also Like

        Product Browsing History