Description
Product Introduction & Engineering Value
Large-format HMIs are often replaced too early because maintenance teams underestimate the value of preserving the original operator interface. The display, communication drivers, and machine workflow may represent years of engineering effort.
The PROFACE AGP3750-T1-AF was designed for demanding industrial visualization applications where operators need a large 15-inch touchscreen with multiple communication options. It supports Ethernet, serial communication, USB, CompactFlash storage, multimedia functions, and expansion modules within the GP3000 architecture.
For retrofit projects, the key identification points are AGP3750-T1-AF, the GP3000/GP3750T family, and the AC power configuration. Replacement decisions should consider project conversion, panel dimensions, and PLC communication compatibility.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | PROFACE |
| Series | GP3000 / GP3750T |
| Model | AGP3750-T1-AF |
| Display Size | 15 inch |
| Display Type | TFT Color LCD |
| Resolution | 1024 × 768 pixels (XGA) |
| Display Colors | 65,536 colors (without blink) / 16,384 colors (with blink) |
| Touch Panel | Resistive analog film type |
| Power Supply | AC100–240V |
| Allowable Voltage Range | AC85–265V |
| Power Consumption | AC100V: 110VA or less / AC240V: 168VA or less |
| Serial Interfaces | COM1: RS-232C/422/485, COM2: RS-422/485 |
| Ethernet | 10BASE-T / 100BASE-TX |
| USB Interface | 2 × USB 1.1 Host |
| Storage Interface | CompactFlash Type II |
| Application Memory | 8MB FEPROM |
| Backup Memory | 320KB SRAM |
| Protection Rating | Equivalent to IP65f / NEMA Type 4X/13 front panel |
| Operating Temperature | 0°C to 50°C |
The AGP3750-T1-AF specifications include a 15-inch XGA TFT display, AC power input, dual serial communication, Ethernet, USB host ports, CompactFlash support, and industrial environmental ratings.
Field Application & the “Trench” Experience
A production line installed in the early 2010s continues running, but the original operator panel begins showing slow touch response and occasional display faults. The machine itself is still mechanically reliable, and replacing the entire control system would create unnecessary engineering risk.
The maintenance team identifies the HMI as a PROFACE AGP3750-T1-AF. Before sourcing a replacement, they confirm:
- Existing GP-Pro EX project availability.
- PLC communication drivers.
- Panel cutout dimensions.
- Ethernet and serial wiring.
- Multimedia and storage requirements.
The replacement HMI is tested offline first, then installed during a scheduled shutdown. The PLC program remains unchanged.
This approach is common for long-life industrial equipment where the automation system still performs correctly but the operator interface has become the weak point.
Typical applications include:
- Large machine operator stations
- Packaging and material handling equipment
- Semiconductor manufacturing tools
- Process monitoring panels
- Factory automation control rooms
AGP3750-T1-AF
AGP3750-T1-AF
Transparency SOP: QA & Testing
A large industrial HMI requires more than a simple power-on inspection.
Hardware Verification
- Confirm model marking:
AGP3750-T1-AF - Verify PROFACE GP3000 series identification
- Check touchscreen surface condition
- Inspect mounting hardware
- Verify AC power terminal condition
Display Testing
- Power up the unit
- Check full-screen brightness
- Inspect LCD uniformity
- Test touchscreen calibration
- Verify status indicators
Communication Testing
- Test Ethernet communication
- Verify RS-232C/RS-422/RS-485 ports
- Check USB host operation
- Verify CompactFlash access
Application Testing
- Load a compatible GP-Pro EX project
- Confirm screen navigation
- Test alarms and data display
- Verify PLC communication
The is an older GP3000-series model. Current industrial suppliers continue to list repair, refurbished, and replacement services for this platform because many installed systems still depend on these HMIs.
The Veteran’s Tech Trap Guide
⚠️ Do not confuse with -D24.
The difference is the power architecture:
A direct replacement requires matching the installed power supply type.
⚠️ PRO TIP: Save the HMI project before removing the panel.
The hardware is only half the solution. Without the original application file, screen layouts, PLC communication settings, and alarm logic may need to be rebuilt.
⚠️ Do not assume every 15-inch PROFACE unit is compatible.
Check:
- Panel cutout size
- Communication drivers
- Software version
- Expansion modules
- Touchscreen type
⚠️ A working LCD does not mean the HMI is ready for service.
Test:
- Touch accuracy
- Ethernet interface
- Serial communication
- Memory retention
- Storage access
Dynamic FAQ
Q1. What isCE ?
CE is a 15-inch GP3000 Series industrial touchscreen HMI with XGA resolution and AC power input.
Q2. What is the display resolution?
The display resolution is:
1024 × 768 pixels (XGA)
using a TFT color LCD panel.
Q3. What poweres require?
It requires:
AC100–240V
with an allowable range of approximately AC85–265V.
Q4. What communication interfaces are available?
The HMI provides:
- RS-232C/422/485 serial communication
- Ethernet 10BASE-T/100BASE-TX
- USB host ports
- CompactFlash interface
an directly replace another PROFACE HMI?
Not always. Verify:
- Power type
- Panel dimensions
- GP-Pro EX project compatibility
- Communication protocol
- Expansion requirements
Q6. Isus available?
Availability depends on industrial spare inventory. Because the family is a legacy platform, buyers commonly encounter new old stock, refurbished units, and tested used HMIs.
Q7. How should buyers verify authenticity?
Request:
- Actual unit photos
- Model lng
- Power-on test evidence
- Touchscreen test results
- Communication test record
- Warranty information
Q8. What is the recommended migration path?
For modernization projects, evaluate newer PROFACE HMI families while considering:
- Existing GP-Pro EX project conversion
- PLC communication compatibility
- Panel replacement requirements
- Required industrial interfaces
The correct migration decision depends on whether the goal is short-term spare replacement or full control-system modernization.
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