PRO-FACE PFXGP4501TAD HMI GP4501T 10.4 Inch Touch Panel

Description

Product Introduction & Engineering Value

The GP4501TAD was designed for engineers who need a compact operator interface that can remain integrated with existing PLC systems. It provides a practical balance of display size, communication flexibility, and installation compatibility for machine builders.

The PRO-FACE PFXGP4501TAD uses a 10.4-inch TFT color LCD with VGA resolution and supports RS-232C, RS-422/485, Ethernet 10BASE-T/100BASE-TX, USB, and SD card functions. Its 24VDC power design makes it suitable for direct installation in industrial control panels.

For replacement projects, verify the exact suffix. The GP4501T family includes AC and DC versions, coated variants, and different touch configurations. A visually similar unit may not match the installed electrical requirements.

 

Technical Specifications

Parameter	Specification
Manufacturer	PRO-FACE
Series	GP4000 Series
Model	PFXGP4501TAD
Display Size	10.4 inch
Display Type	TFT Color LCD
Resolution	640 × 480 pixels (VGA)
Display Colors	65,536 colors (no blink) / 16,384 colors (blink)
Effective Display Area	211.2 × 158.4 mm
Touch Panel Type	Analog resistive film
Touch Resolution	1,024 × 1,024
Touch Life	1 million operations or more
Backlight	White LED
Backlight Life	50,000 hours or more at 25°C continuous operation
Rated Voltage	24VDC
Voltage Range	19.2–28.8VDC
Power Consumption	17W or less
COM1	RS-232C
COM2	RS-422/485
Ethernet	10BASE-T / 100BASE-TX
USB Interface	USB 2.0 Type-A and Mini-B
SD Card	1 slot
Application Memory	16MB Flash EPROM
Backup Memory	128KB SRAM with battery backup
Operating Temperature	0°C to 55°C
Front Protection	IP65F / NEMA Type 4X/13 when panel mounted

The PFXGP4501TAD specifications identify it as a DC-powered GP4000 HMI with 10.4-inch TFT display, VGA resolution, resistive touch input, Ethernet, USB, SD card storage, and industrial panel protection.

 

Field Application & the “Trench” Experience

A machine retrofit project involved a packaging cell installed with an older PLC system. The controller remained stable, but the operator panel began showing touch calibration drift after years of daily operation.

The maintenance team identified the installed unit:

PRO-FACE PFXGP4501TAD

Before replacement, they checked:

• Existing GP-Pro EX project file
• PLC communication driver
• Ethernet IP settings
• Serial communication wiring
• 24VDC power availability
• Panel cutout dimensions

The replacement HMI was configured offline first. After installation, operators retained the same screen navigation, alarm workflow, and parameter adjustment functions.

This type of replacement is common where production downtime is expensive and the existing PLC control system does not require modification.

Typical applications:

• Packaging machine operator stations
• CNC machine monitoring panels
• Assembly line control interfaces
• Material handling equipment
• Process skid local HMIs

Transparency SOP: QA & Testing

A GP4000-series HMI should be tested as a complete automation component.

Quality Verification Process

Identification Check

• Confirm:
  • PRO-FACE marking
  • Model: PFXGP4501TAD
  • GP4501T family identification
• Verify connector condition and enclosure integrity.

Display Evaluation

Test:

• Full-screen image output
• Brightness adjustment
• Color uniformity
• Pixel condition

Touchscreen Verification

Check:

• Calibration accuracy
• Entire touch area response
• Repeated touch operation

Communication Testing

Verify:

• RS-232C communication
• RS-422/485 communication
• Ethernet link
• USB connection
• SD card access

Memory Check

Confirm:

• Project transfer capability
• SRAM retention
• Clock operation

A proper spare evaluation should include operational evidence, not only a visual inspection.

 

The Veteran’s Tech Trap Guide

⚠️ Do not replace PFXGP4501TAD with an AC-powered GP4501 model without checking wiring.

The requires:

24VDC input

while some GP4501 variants use AC100–240V. A similar model number does not mean identical installation requirements.

⚠️ PRO TIP: Preserve the GP-Pro EX project before hardware removal.

The HMI hardware contains the display and communication functions. The application screens, alarms, recipes, and PLC addresses depend on the project file.

⚠️ Check PLC protocol settings.

Common replacement failures are caused by:

• Wrong communication driver
• Incorrect station number
• Incorrect baud rate
• Changed Ethernet settings

⚠️ Do not overlook SD card usage.

Many machines store:

• Recipes
• Historical data
• Backup files

on external storage. Confirm SD card requirements before commissioning.

 

Dynamic FAQ

Q1. What is PRO-FACE ?

The PRO-FACE is a GP4000 Series 10.4-inch industrial touchscreen HMI designed for PLC monitoring and machine operator control.

Q2. What power supply does require?

It requires:

24VDC

with an allowable voltage range of:

19.2–28.8VDC.

Q3. What is the display resolution?

The display resolution is:

640 × 480 pixels (VGA)

using a TFT color LCD panel.

Q4. What communication ports are available?

The unit provides:

• RS-232C
• RS-422/485
• Ethernet 10BASE-T/100BASE-TX
• USB Type-A
• USB Mini-B
• SD card slot

Q5. Can replace older PRO-FACE HMIs?

Yes, but engineering review is required. Check:

• Screen project conversion
• PLC driver compatibility
• Panel dimensions
• Communication wiring
• Power supply

Q6. Is still available as New Surplus?

Availability depends on industrial spare inventory. GP4000-series units are still commonly found through surplus, refurbished, and automation spare-part channels.

Q7. How can buyers verify a genuine unit?

Request:

• Actual product photos
• Rear label showing
• Power-on test evidence
• Touchscreen calibration test
• Communication verification
• Warranty terms

Q8. What is the recommended migration path?

For long-term modernization, evaluate newer PRO-FACE HMI families while considering:

• Existing GP-Pro EX application files
• PLC communication compatibility
• Operator workflow requirements
• Panel replacement costs

A direct spare replacement is usually the lowest-risk approach when the existing control system remains functional.