UniOP BKDC-16-0045 HMI Operator Panel

Technical Dossier

Product Details And Specifications

UniOP BKDC Series: Comprehensive Module Range and Technical Overview

The UniOP BKDC series, developed by Exor International (Italy), represents a generation of industrial HMI operator panels deployed across heavy-process industries including petrochemical refineries, nuclear power facilities, chemical processing plants, and offshore oil & gas platforms. These panels served as the primary human-machine interface layer in SCADA and DCS architectures throughout the 1990s and 2000s, providing operators with real-time process visualization, alarm management, and parameter input capabilities. The BKDC line is characterized by its ruggedized enclosure design, compatibility with a broad range of PLC communication protocols (Siemens, Allen-Bradley, Modicon, Mitsubishi, and others via serial RS-232/RS-485), and its role as a front-end terminal in distributed control topologies. Installed base across global heavy industry remains significant, making spare parts availability a critical operational concern for plant maintenance teams.

The Evolution of BKDC Architecture

The BKDC series was introduced by UniOP (a brand of Exor International, Verona, Italy) as a text-and-graphics operator terminal platform. Early BKDC units used monochrome LCD displays with membrane keypads and communicated via RS-232 serial links to host PLCs. The architecture relied on proprietary DesignerPRO configuration software running on DOS/Windows 3.x hosts. Mid-generation units added RS-485 multi-drop capability, enabling a single panel to poll multiple PLC nodes on a shared bus—a topology common in distributed chemical plant control rooms.

As the 2000s progressed, Exor transitioned the product line toward the eTOP series, which introduced color TFT displays, Ethernet connectivity, USB ports, and Windows CE-based runtime environments. The eTOP line is the direct functional successor to the BKDC range and is the recommended migration path for new installations. However, the BKDC series remains in active service at thousands of legacy sites where full panel replacement is cost-prohibitive or requires extended shutdown windows. For these installations, sourcing tested replacement BKDC units is the standard maintenance strategy.

Compatibility note: BKDC panels use UniOP's proprietary communication driver architecture. Driver files are tied to firmware versions; mismatched firmware and driver combinations result in communication failures. Replacement units must match the original firmware revision or be reflashed to the site-specific configuration.

UniOP BKDC Full Catalog & Functionalities (SKU List)

The following SKUs represent the core BKDC series product range. Each unit is a standalone HMI operator panel. Functional descriptions reflect the primary differentiating specification of each model.

• BKDC-16-0045: 16-key membrane keypad HMI, 4-line text display, RS-232/RS-485, 45mm depth enclosure — the baseline reference model for this series.
• BKDC-10-0045: 10-key compact keypad variant, reduced I/O footprint, suited for space-constrained panel doors, 45mm depth.
• BKDC-16-0050: 16-key keypad HMI, extended 50mm depth enclosure, accommodates additional internal wiring clearance for retrofit installations.
• BKDC-10-0050: 10-key compact keypad, 50mm depth enclosure, RS-232 primary communication port.
• BKDC-43-0045: 43-key full-function keypad, expanded operator input capability, 4-line alphanumeric display, 45mm depth.
• BKDC-43-0050: 43-key keypad, 50mm depth enclosure, RS-485 multi-drop bus support for multi-PLC polling.
• eTOP-04: First-generation eTOP successor; 3.8-inch STN monochrome display, serial communication, direct BKDC application migration path.
• eTOP-05: 5.7-inch STN display, serial + optional Ethernet, expanded recipe and alarm management capacity.
• eTOP-06: 5.7-inch TFT color display, USB host port, Compact Flash slot, Windows CE runtime.
• eTOP-10: 10.4-inch TFT color display, dual serial ports, Ethernet 10/100, primary replacement for large-format BKDC installations.
• eTOP-11: 10.4-inch TFT, enhanced graphics processor, supports vector graphics and trend displays.
• eTOP-12: 12.1-inch TFT color display, wide-format panel, suited for control room console integration.
• eTOP-40: 4-inch widescreen TFT, compact form factor, DIN-rail mountable variant for machine-level HMI.
• eTOP-50: 5-inch widescreen TFT, mid-range replacement panel, supports 256 communication drivers.
• eTOP-504: 4.3-inch TFT, ARM-based processor, supports CANopen and Profibus DP in addition to serial protocols.
• eTOP-507: 7-inch widescreen TFT, high-resolution display, supports multi-touch input, Ethernet, USB, and SD card storage.

Sourcing Hard-to-Find & Obsolete BKDC Parts

The UniOP BKDC series entered end-of-life status as Exor consolidated its product line around the eTOP platform. Original manufacturer support, firmware updates, and new unit production for BKDC models have been discontinued. For plant operators maintaining BKDC-equipped systems, the sourcing options are limited to the secondary market for tested used units, refurbished stock, and specialist industrial automation distributors.

DriveKNMS maintains a dedicated inventory of UniOP BKDC series panels sourced from decommissioned plant equipment, controlled factory overstock, and verified secondary market channels. Each unit undergoes functional verification before listing. DriveKNMS provides lifecycle extension support for BKDC installations, including unit-for-unit replacement matching original firmware versions, configuration backup and restore services, and cross-reference assistance for identifying compatible eTOP migration alternatives where direct BKDC replacement stock is exhausted.

For bulk requirements—common in planned plant turnarounds or multi-site maintenance contracts—DriveKNMS accepts bill-of-materials (BOM) inquiries and provides consolidated quotations. Lead times and pricing are provided within one business day for standard BKDC models.

Quality Control for the BKDC Range

UniOP BKDC panels present specific test challenges due to their proprietary serial communication architecture and membrane keypad assemblies. DriveKNMS applies the following verification protocol to all BKDC units prior to dispatch:

• Power-on functional test: Unit is powered at rated voltage (24VDC nominal); display initialization, backlight function, and firmware boot sequence are verified.
• Keypad matrix scan: All membrane keypad contacts are tested for continuity and debounce response using automated key-scan routines.
• Serial communication loopback: RS-232 and RS-485 ports are tested using protocol-specific loopback adapters to verify UART integrity and baud rate accuracy.
• Display pixel inspection: LCD/display panel is inspected for dead pixels, contrast uniformity, and backlight evenness under controlled lighting conditions.
• EEPROM and configuration memory check: Internal configuration memory is read and verified for data integrity; corrupted memory blocks are flagged and reported.
• Thermal cycling: Units destined for high-temperature process environments undergo a 4-hour thermal soak at 55°C to screen for latent component failures.

Test records are retained per unit and are available to customers upon request. Units that fail any test stage are quarantined and not offered for sale.