Honeywell 51401052-100
Honeywell 51401052-100
Honeywell 51401052-100
Honeywell 51401052-100
Honeywell 51401052-100
Honeywell 51401052-100
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51401052-100

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The 51401052-100 is a Honeywell Smart Peripheral Controller (SPC) circuit board for TDC 3000 History Modules, controlling SCSI bus communication for 210 MB to 1.8 GB WREN III drives.
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Technical specifications for 51401052-100

  • Manufacturer:
    Honeywell
  • Part Number:
    51401052-100
  • Product Family:
    Honeywell DCS
  • Product Type:
    Smart Peripheral Controller
  • Supported Drives:
    210 MB, 445 MB, 875 MB, 1.8 GB WREN III drives
  • Interface:
    SCSI bus
  • Revision Jumpers:
    TS2 (factory set – do not alter)
  • Slot Installation:
    Typically slot 4 when HPK2 is in slot 1 (due to 2‑slot empty limit)
  • Part List Reference:
    Item 22, Table 13-2, WDA Type History Module Parts List
  • Weight:
    0.84 kg
  • Estimated shipping dimensions:
    36.6x36.4x1.5cm
  • 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 Specifications Application Diagnostics and Protection Installation and Upgrades

Features:

  • Manages data transfer between the TDC 3000 processor and Winchester disk drives (210 MB to 1.8 GB); essential for process history storage.
  • Allows setting the SCSI bus address for proper device communication; TS2 revision jumpers are factory set and not user‑adjustable.
  • Uses two EPROMs (0928-101, 0928-102) at coordinates 18F/18G; field upgradeable but requires ESD precautions.
The 51401052-100 is a Smart Peripheral Controller (SPC) circuit board that serves as the SCSI bus controller for Honeywell TDC 3000 History Modules. In a DCS, the History Module is responsible for storing long‑term process data: trends, alarm and event logs, operator actions, and reports. Without a functioning History Module, a plant cannot perform regulatory compliance reporting, analyze past performance, or troubleshoot historical process upsets. The 51401052-100 sits between the system processor (EMPU, HMPU, or HPK2) and the Winchester disk drive (capacities from 210 MB up to 1.8 GB).

The 51401052-100 uses jumper pins at location TS1 to set the SCSI bus address for the History Module’s disk drive. Proper SCSI addressing is critical because multiple SCSI devices (e.g., dual drives, tape drives) may share the same bus. Incorrect address settings will cause communication failures, preventing the processor from accessing the disk. The documentation provides specific jumper configurations (Figures 9-5 and 9-11) that must be followed exactly.

The 51401052-100 requires firmware revision “G” or later to properly interface with the supported WREN III disk drives (210 MB, 445 MB, 875 MB, and 1.8 GB). The firmware is stored on two EPROM chips located at coordinates 18F and 18G on the circuit board. The original part numbers for these EPROMs are 0928-101 and 0928-102. If a board has an older firmware revision, it may not recognize larger capacity drives or may have performance issues. To upgrade the firmware, an engineer must remove the existing EPROMs using an EPROM puller while wearing a properly grounded ESD wriststrap.

The 51401052-100 Honeywell Smart Peripheral Controller may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

Honeywell 51401052-100 Smart Peripheral Controller Manuals, Datasheets,Drivers,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.
Honeywell 51401052-100 Smart Peripheral Controller Specs

General

  • Manufacturer Honeywell
  • Model 51401052-100
  • Condition New Original ready stock
  • Product Family 51401052-200,51401052-300,51304156-100
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.
  • Data Storage and Management: Manages the Wren III hard drive in the Honeywell TDC 3000 system, ensuring efficient storage and retrieval of historical data, system configurations, and operational logs.
  • Industry Applications: Widely used in industries with extremely high requirements for process data recording, including oil and gas, chemical, power, and marine automation.
  • Status Indicators (LEDs): Onboard LEDs display the controller's operating status and SCSI bus communication status, helping technicians quickly determine if a link is interrupted.
  • Firmware Compatibility Diagnosis: The system checks the SPC's firmware version. For example, in LCN Release 500 or later, if using an 875MB/1.8GB drive, the firmware must be Rev G or higher; if the firmware version does not match, the system will report an error or experience performance degradation.
  • Physical Protection: This card is typically installed in a protective enclosure and connected via a dedicated SPC I/O Paddle Board to protect the core circuitry from external signal interference.
  • Installation Method: Panel-mounted, requiring a compatible I/O paddle board (such as the SPC II I/O Paddle Board used for WDA legacy modules).
  • Dual Logical Drive Upgrade: If you plan to replace storage with newer dual logical drives, the SPC firmware must be upgraded to Rev J or higher (Rev H is usable but will impact performance).
  • Hardware Version: Common hardware revisions on the market include Rev C, Rev F, and the latest Rev L. When upgrading, prioritize higher revisions for better stability.
Description
The 51401052-100 is a Smart Peripheral Controller (SPC) circuit board used in Honeywell TDC 3000 History Modules. It manages communication between the system processor and Winchester disk drives (210 MB, 445 MB, 875 MB, or 1.8 GB). The board controls SCSI bus operations and requires proper SCSI address configuration via jumpers at location TS1. 

When installing the 51401052-100, engineers must verify the pinning jumpers at TS1 are positioned correctly for the SCSI bus address. The revision pinning at TS2 is factory set and must not be altered. 

The 51401052-100 is installed in a specific slot location depending on the History Module configuration. In modules with an HPK2 in slot 1, the SPC and SPC I/O boards must be installed in slot 4 because no more than two empty slots can exist between circuit boards. 

For legacy TDC 3000 system maintenance, the 51401052-100 remains a critical spare part. It is listed as item 22 in the WDA Type History Module parts list. When replacing the board, always check the firmware revision and TS1 jumper settings before installation. 
Alternative Names
51306975-175 51303968-100 51304156-100 51401052100 514O1O52-1OO 5I40I052-I00 5I4OIO52-IOO 514O1O521OO
Technical notes
The 51401052-100 controls SCSI bus communication for Winchester disk drives in TDC 3000 History Modules. It supports drives ranging from 210 MB to 1.8 GB (210, 445, 875 MB, and 1.8 GB WREN III drives).TS1 for SCSI bus address (user configurable) and TS2 for revision pinning (factory set, do not alter).
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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.
How do I set the SCSI address on the 51401052-100?
The 51401052-100 uses pinning jumpers at location TS1 to set the SCSI bus address. Verify the jumper positions against the documentation. The TS2 revision jumpers are factory set and must not be changed.
What firmware revision is required for the 51401052-100?
The 51401052-100 requires firmware revision “G” or later. The two EPROMs are located at coordinates 18F and 18G. If replacement is needed, note the orientation of EPROMs 0928-101 and 0928-102 before removal. Always use an ESD wriststrap.
Where should I install the 51401052-100 in the chassis?
If an HPK2 is installed in slot 1, the 51401052-100 (SPC) and its associated SPC I/O board must be installed in slot 4. No more than two empty slots can exist between circuit boards in TDC 3000 History Modules.

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