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      1785-PFB

      PLC-5 PROFIBUS Coprocessor
      In Stock
      Ships by Thursday, September 17
      Fast Shipping Available

      Product Describe：

      Allen-Bradley 1785-PFB is a PLC-5 PROFIBUS coprocessor. It links the PLC-5 control platform to a configured PROFIBUS network and is commissioned through the Local Station Manager.

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      Technical specifications Information Technical notes FAQ

      Technical specifications for 1785-PFB

      Technical specifications for 1785-PFB

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC Systems
      • Spare Part Number:
        1785-PFB
      • Estimated shipping dimensions:
        10.2×7.6×10.2cm
      • Weight:
        0.3 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Network protocol:
        PROFIBUS
      • Host platform:
        PLC-5
      • Engineering interface:
        Local Station Manager
      • Engineering connection:
        RS-232
      • RS-232 connector:
        9-pin female
      • RS-232 transmit pin:
        Pin 4
      • RS-232 receive pin:
        Pin 3
      • RS-232 data ground:
        Pin 1
      • Event categories:
        REMOTE; COMMUNICATION; MODULE; PROGRAM
      • Module reset duration:
        Up to 1 minute
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      Information

      Information

      Overview Manuals Common Applications Product Precautions
      Allen-Bradley 1785-PFB is a PLC-5 PROFIBUS coprocessor. It links the PLC-5 control platform to a configured PROFIBUS network and is commissioned through the Local Station Manager.
      • Executes the configured PLC-5-to-PROFIBUS communication role
      • Exposes bus parameters and module information to the engineering utility
      • Reports remote, communication, module and program events
      • Supports controlled communication and module reset functions

      1785-PFB operates with PLC-5 processor system, PROFIBUS field network, RS-232 engineering cable, Local Station Manager software.
      Typical engineered duties include PLC-5 PROFIBUS station integration, PROFIBUS device commissioning, Legacy network diagnostic work, PLC-5 bus-parameter recovery.

      Important Notice: Replacing 1785-PFB requires preservation of the PROFIBUS station parameters, address conversion, device configuration and PLC-5 data mapping; a module reset alone does not validate the network.

      Apter Power 1785-PFB Manuals and Guides

      Important Notice: The first document is an Apter Power 1785-PFB model-specific technical reference. The second is a distinct document for installation, configuration or system engineering.

      1785-PFB PLC-5 PROFIBUS station integration
      Executes the configured PLC-5-to-PROFIBUS communication role
      1785-PFB PROFIBUS device commissioning
      Exposes bus parameters and module information to the engineering utility
      1785-PFB Legacy network diagnostic work
      Reports remote, communication, module and program events
      1785-PFB PLC-5 bus-parameter recovery
      Supports controlled communication and module reset functions
      Read the applicable Allen-Bradley installation instructions before work. Verify 1785-PFB and the installed-system configuration.
      1
      Archive the bus parameters and address map before module work.
      2
      Use the documented RS-232 pinout for the engineering connection.
      3
      Verify station address and bus parameters before enabling communications.
      4
      Review event logs and device status after any reset or configuration load.
      5
      Commission 1785-PFB under controlled conditions and retain the completed functional-test record before release.

      Technical notes

      Technical notes

      Use the Local Station Manager to confirm 1785-PFB switches, battery status, communication port, bus parameters and system events. Retain the validated station configuration before any module reset.

      FAQS

      • Which engineering utility configures 1785-PFB?
        Use the Rockwell Automation PLC-5 PROFIBUS Local Station Manager.
      • How is a computer connected to 1785-PFB?
        Use the documented RS-232 connection and verify the transmit, receive and data-ground pin assignments.
      • Which PROFIBUS settings must be preserved for 1785-PFB?
        Archive the station address, bus parameters, device definitions and PLC-5 data-address conversions.
      • How long can a 1785-PFB module reset take?
        The Local Station Manager manual states that a module reset can take up to one minute.
      • Which events should be reviewed on 1785-PFB?
        Review the REMOTE, COMMUNICATION, MODULE and PROGRAM event categories after commissioning or faults.
      • What is checked before resetting communications on 1785-PFB?
        Confirm the saved bus configuration, active device state and impact on PLC-5 data exchange before issuing the reset.
      • How is 1785-PFB validated after replacement?
        Reconnect through the engineering port, load the approved station settings and prove each required PROFIBUS data exchange.
      • Can 1785-PFB be replaced without checking PLC-5 addresses?
        No. Address conversion and data mapping are part of the validated interface and must be compared.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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