Pro-face AGP3550 Modules: AGP3550-BASE D05045B

Technical Dossier

Product Details And Specifications

Pro-face AGP3550 Series: Comprehensive Module Range and Technical Overview

The Pro-face AGP3550 series is a line of industrial Human-Machine Interface (HMI) panels manufactured by Schneider Electric's Pro-face brand (formerly Digital Electronics Corporation). These units are deployed across heavy industrial sectors including petrochemical plants, nuclear power facilities, oil refineries, and continuous-process manufacturing environments. The AGP3550 platform is characterized by its TFT color display, resistive touchscreen input, and compatibility with the GP-Pro EX programming environment. Its ruggedized enclosure ratings and wide operating temperature range have made it a standard specification in long-lifecycle DCS and SCADA architectures globally. The base board assembly AGP3550-BASE D05045B is a critical internal PCB subassembly responsible for core logic, backplane communication, and I/O interfacing within the AGP3550 chassis.

The Evolution of AGP3550 Architecture

The AGP3550 series sits within Pro-face's third-generation GP3000 platform, which succeeded the GP2000 and GP-477 lines. Early GP-series panels used proprietary serial communication protocols (RS-232C, RS-422) with limited Ethernet capability. The AGP3550 generation introduced integrated 10/100BASE-T Ethernet as standard, enabling direct SCADA integration without external communication adapters. Internal architecture shifted from discrete logic ICs to a consolidated SoC-based design, reducing board-level component count and improving MTBF ratings. The D05045B revision of the BASE board reflects a mid-lifecycle hardware revision addressing known capacitor aging issues on earlier D04xxx-series boards. Compatibility with GP-Pro EX versions 1.x through 4.x is maintained across all AGP3550 hardware revisions, though firmware must be matched to the specific board revision for stable operation. As the AGP3550 series has entered its end-of-sale phase, procurement of subassemblies such as the AGP3550-BASE D05045B now relies exclusively on authorized aftermarket distributors and specialist spare parts suppliers.

AGP3550 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented AGP3550 series module range, classified by functional category. All models listed are verified members of the AGP3550 platform.

HMI Panel Units (Complete Assemblies)

• AGP3550-T1-D24: 10.4-inch TFT color HMI, 24VDC input, resistive touch, standard I/O
• AGP3550-T1-AF: 10.4-inch TFT color HMI, AC power input variant, front-panel IP65 rated
• AGP3550-T1-D24-M: 10.4-inch TFT HMI with expanded memory option, 24VDC, multi-protocol
• AGP3550-S1-D24: 10.4-inch STN color HMI, 24VDC, cost-reduced display variant
• AGP3550-S1-AF: 10.4-inch STN color HMI, AC power input, standard serial I/O

Base Board / PCB Subassemblies

• AGP3550-BASE D05045B: Core logic base board PCB, backplane bus controller, primary I/O interface layer
• AGP3550-BASE D04032A: Earlier hardware revision base board, pre-capacitor-revision production run
• AGP3550-BASE D06011C: Late-production revision base board with revised power regulation circuit

Display & Backlight Assemblies

• AGP3550-LCD-ASSY: 10.4-inch TFT LCD panel assembly, direct OEM replacement module
• AGP3550-BL-UNIT: CCFL backlight unit assembly, compatible with T1 display variants
• AGP3550-TOUCH-T1: Resistive touchscreen digitizer panel, T1 series replacement

Power Supply Modules

• AGP3550-PS-D24: Internal DC/DC power supply board, 24VDC input regulation module
• AGP3550-PS-AF: Internal AC/DC power supply board, 100-240VAC input variant

Communication & Interface Modules

• AGP3550-COM-232: RS-232C serial communication interface board, COM1 port expansion
• AGP3550-COM-485: RS-485/RS-422 serial interface board, multi-drop network support
• AGP3550-ETH-100: 10/100BASE-T Ethernet interface module, SCADA/DCS network integration
• CA3-USBCB-01: USB programming cable, GP-Pro EX project download interface

Sourcing Hard-to-Find & Obsolete AGP3550 Parts

The AGP3550 series has been formally discontinued by Pro-face/Schneider Electric. OEM spare parts supply through authorized distribution channels is no longer guaranteed. For facilities operating AGP3550 panels in long-lifecycle applications — including nuclear instrumentation, refinery DCS, and chemical plant SCADA — unplanned HMI downtime represents a critical operational risk. DriveKNMS maintains a dedicated inventory of AGP3550 subassemblies, including the AGP3550-BASE D05045B circuit board, sourced through verified secondary market channels. Our procurement team actively tracks global surplus inventory to ensure continued availability of board-level components for customers requiring 5–15 year maintenance horizon support. Customers operating mixed fleets of AGP3550 and GP2000-series panels can consolidate spare parts procurement through a single supplier relationship. Requests for specific revision codes, date codes, or batch traceability documentation are accommodated on a per-order basis.

Quality Control for the AGP3550 Range

PCB subassemblies within the AGP3550 platform — including the AGP3550-BASE D05045B — undergo a structured inspection and functional verification process prior to dispatch. Each base board is visually inspected under magnification for solder joint integrity, capacitor condition, and connector pin alignment. Functional testing is performed using a dedicated AGP3550 test chassis that replicates the production backplane environment, verifying power rail stability (3.3V, 5V, 12V), serial port signal integrity on COM1/COM2, Ethernet PHY link negotiation, and touchscreen controller communication. Boards exhibiting capacitor bulge, electrolyte leakage, or trace corrosion are rejected at the visual inspection stage and are not offered for resale. All tested units are issued a test report documenting pass/fail criteria and are shipped with ESD-protective packaging. Warranty terms and return conditions are confirmed at the time of order.