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This is a 10.4-inch VGA color touch screen from the Pro-face ST3000 series, model AST3501-C1-D24 (global part number: PFXST3501CAD). Discontinued on December 28, 2012. The standard replacement model is PFXGP4501TADW (GP-4501TW).
- Model Breakdown Definition
| Segment | Code | Bedeutung |
| Produktserie | AST | ST3000 Series Standard Programmable Human-Machine Interface (HMI) |
| Größe & Typ | 3501 | 35 = 10.4-inch color display; 01 = base model |
| Front Panel Type | C1 | Standard color front panel (C = Color) |
| Power Specification | D24 | DC24V power supply (D = DC, 24 = 24V) |
Global Part Number Mapping: PFXST3501CAD
(PFX = Pro-face global prefix; ST = ST3000 series; 3501 = model code; C = Color; AD = Standard configuration)
- Kernspezifikationen
2.1 Display Parameters
| Artikel | Spezifikation |
| Display Type | TFT Color LCD (10.4-Zoll) |
| Auflösung | 640×480 pixels (VGA) |
| Display Colors | 16 colors (Standard) / 64 colors (with blink) / 256 colors (non-blink mode) |
| Active Display Area | 211.2×158.4 mm |
| Brightness Adjustment | 8-level adjustable (via touch panel) |
| Backlight Type | Cold Cathode Fluorescent Lamp (CCFL) |
| Backlight Lifespan | Ca. 50,000 Std. (at 25℃ ambient) |
2.2 Erinnerung & Prozessor
| Artikel | Spezifikation |
| Application Program Memory | 6MB FLASH EPROM |
| Data Backup Memory | 320KB SRAM (with lithium battery backup) |
| CPU Performance | Built-in high-speed processor (8 times faster than earlier models) |
2.3 Schnittstellenkonfiguration
| Schnittstellentyp | Quantity & Spezifikation |
| Serial Communication | COM1: RS-232C; COM2: RS-422/RS-485 |
| USB Port | 1 × USB Host (Typ A) |
| CF Card Slot | 1 (for storage expansion and data backup) |
| Auxiliary I/O | 1 set (for external device connection) |
| Audio Output | 1 (for alarm notification) |
| Ethernet | Keiner (Ethernet port not standard on this model) |
2.4 Elektrisch & Environmental Ratings
| Artikel | Spezifikation |
| Leistungsaufnahme | DC24V (Standard S-type), Spannungsbereich: 21.6~26.4V DC |
| Stromverbrauch | Max approx. 25W (including backlight) |
| Betriebstemperatur | 0℃~50℃ |
| Lagertemperatur | -20℃~+60℃ |
| Operating Humidity | 10%~90% RH (nicht kondensierend, wet bulb ≤39℃) |
| Schutzgrad | Front panel IP65f, Rear IP20 |
| Vibrationsfestigkeit | Konform mit IEC 61131-2 |
| Shock Resistance | Konform mit IEC 61131-2 |
2.5 Mechanical Dimensions
| Artikel | Spezifikation |
| Gesamtabmessungen | W270.5 × H215.5 × D56.5 mm |
| Panel Cutout Size | W259 × H204 mm |
| Mounting Depth | Ca. 56.5 mm |
| Gewicht | Ca. 2.2 kg |
- Standard Package Accessories
| Artikel | Menge | Bemerkungen |
| AST3501-C1-D24 Main Unit | 1 Satz | Includes touch screen body |
| Installationshandbuch (CN/EN) | 1 Each | With safety instructions |
| Stromkabel | 1 Pc | Dedicated DC24V power cable |
| Touch Stylus | 1 Pc | For precise touch operation |
| Lithium Battery | 1 Pc | For SRAM data backup (pre-installed) |
| Garantiekarte | 1 Pc | Standard 1-year warranty |
- Competitor & Cross-Brand Replacement
4.1 Pro-face Internal Replacement Model
| Originalmodell | Ersatzmodell | Major Improvements |
| AST3501-C1-D24 | PFXGP4501TADW (GP-4501TW) | 1. Anzeige: 65,536-color true-color TFT LCD |
| 2. Backlight: LED (lifespan >50,000 Std.) | ||
| 3. Larger memory capacity | ||
| 4. Added Ethernet port | ||
| 5. Grid-free analog touch panel | ||
| 6. Supports latest GP-Pro EX software |
Vorteile des Ersatzes: Panel cutout compatible for direct mounting replacement; software compatible, existing GP-Pro EX projects can be migrated directly.
4.2 Cross-Brand Equivalent Models (Same Specification Level)
| Marke | Modell | Core Spec Comparison | Vorteile |
| Weinview | TK6102i | 10.4-Zoll, 640×480, 65536 colors, Ethernet | Kostengünstig, free programming software |
| Mitsubishi | GT1155-QSBD-C | 10.4-Zoll, 640×480, 256 colors, RS-232/422/485 | Excellent compatibility with Mitsubishi PLCs, complete protocol support |
| Siemens | KTP1000 Basic | 10.4-Zoll, 640×480, 65536 colors, Ethernet | Seamless integration with Siemens S7 series PLCs, PROFINET supported |
| Schneider | XBTGT5330 | 10.4-Zoll, 640×480, 65536 colors, Ethernet | Multi-industrial protocol support, high security performance |
- Auswahlrichtlinien & Replacement Solutions
5.1 Anwendungsszenarien
Existing Equipment Maintenance: For production lines already installed with ST3000 series requiring spare parts replacement
Klein & Medium Control Systems: Applications with basic display requirements (16 colors sufficient) and no Ethernet demand
Budget-Limited Projects: Low cost in second-hand market, suitable for low-budget renovation
5.2 Auswahlnotizen
Discontinued Status: Discontinued since 2012; select replacement model PFXGP4501TADW for new purchase
Software Compatibility: Only supports GP-Pro EX V2.7 and earlier versions
Spare Parts Procurement: Prioritize original second-hand units or professional repair services for quality assurance
Upgrade-Vorschlag: If Ethernet, higher color depth or larger memory is required, choose GP4000 series replacement directly
5.3 Recommended Replacement Solutions
| Requirement Scenario | Recommended Solution | Implementation Points |
| Direkter Ersatz (Same Function) | PFXGP4501TADW (GP-4501TW) | 1. Fully compatible panel cutout |
| 2. Existing project files importable directly | ||
| 3. No modification needed for power and communication wiring | ||
| Function Upgrade (Add Ethernet) | PFXGP4501TADW + Ethernet Module | 1. Realize remote monitoring and data acquisition |
| 2. Supports Modbus TCP and other industrial Ethernet protocols | ||
| Kostenoptimierung (Second-hand) | Original Used AST3501-C1-D24 | 1. Inspect backlight lifespan and touch sensitivity |
| 2. Confirm no obvious physical damage | ||
| 3. Test communication ports and storage function | ||
| Full System Upgrade (New Project) | Higher-spec GP4000 Series | 1. Select larger memory and higher resolution |
| 2. Support more protocols and expansion modules | ||
| 3. Longer warranty and technical support |
The AST3501-C1-D24 is a classic 10.4-inch color touch screen of the Pro-face ST3000 series. Though discontinued, it remains valuable for legacy equipment maintenance. Its core strengths are industrial reliability, IP65f front panel protection, and excellent compatibility with various PLCs. For new procurement or system upgrading, PFXGP4501TADW is recommended for better display performance, richer functions and longer product lifecycle.
Complete Guide to Replacement Models for Pro-face AST3501-C1-D24
Key Conclusion: The official standard replacement is PFXGP4501TADW (GP-4501TW) (compatible panel cutout, seamless software migration). Cross-brand alternatives include Weinview TK6102i, Mitsubishi GT2310-VTBD, Siemens KTP1000 Basic, Schneider XBTGT5330, all 10.4-inch VGA-grade industrial HMIs with respective protocol and cost advantages.
- Official Pro-face Internal Replacement (Recommended Priority)
| Originalmodell | Official Replacement | Global Part No. | Ersatzkompatibilität | Core Upgrades |
| AST3501-C1-D24 | PFXGP4501TADW (GP-4501TW) | PFXGP4501TADW | ✅ Fully compatible cutout (W259×H204mm) | 1. Anzeige: 65,536 true colors vs original 16 colors |
| ✅ Seamless software migration (direct GP-Pro EX project import) | 2. Backlight: LED >50,000hrs vs original CCFL | |||
| ✅ No change for power/communication wiring | 3. Larger memory (6MB FLASH+320KB SRAM original) | |||
| 4. New Ethernet port (none on original) | ||||
| 5. Grid-free analog touch panel | ||||
| 6. Supports latest GP-Pro EX version |
Replacement Advantage: Officially designated only standard replacement solution, offering longest product lifecycle and full technical support; Die 2012 replacement manual explicitly recommends it for all ST3500 series models.
- Cross-Brand Equivalent Models (Same Grade)
All below are 10.4-inch VGA industrial HMIs suitable for replacing AST3501-C1-D24.
2.1 Weinview
| Modell | Core Specs | Vorteile | Anwendung |
| TK6102i | 10.4-Zoll, 640×480, 65536 colors, RS-232/485, Ethernet, USB, SD Card | 1. Most cost-competitive | Budgetprojekte, Ethernet required, multi-brand PLC communication |
| 2. Free EasyBuilder Pro software | |||
| 3. Multi-protocol support | |||
| 4. Global service network |
2.2 Mitsubishi Electric
| Modell | Core Specs | Vorteile | Anwendung |
| GT2310-VTBD | 10.4-Zoll, 640×480, 65536 colors, RS-232/422/485, Ethernet, USB, SD Card | 1. Deep integration with Mitsubishi PLC | Mitsubishi PLC system, CC-Link network, high stability demand |
| 2. Complete MELSEC protocol support | |||
| 3. High industrial reliability | |||
| 4. CC-Link fieldbus support | |||
| GT2510-VTBD | 10.4-Zoll, 640×480, 65536 colors, LED backlight, multi-interfaces | 1. Higher-performance CPU | Complex control projects, massive data processing |
| 2. Larger memory | |||
| 3. More expansion modules |
2.3 Siemens
| Modell | Core Specs | Vorteile | Anwendung |
| KTP1000 Basic | 10.4-Zoll, 640×480, 65536 colors, Ethernet, USB, PROFINET | 1. Seamless integration with Siemens S7 PLC | Siemens PLC system, PROFINET, Fernüberwachung |
| 2. PROFINET support | |||
| 3. Integrierter Webserver | |||
| 4. Global Siemens technical support | |||
| TP1000 Comfort | 10.4-Zoll, 640×480, 65536 colors, multi-interfaces, script support | 1. Powerful programming functions | Complex HMI applications, custom function required |
| 2. VB script supported | |||
| 3. Strong expandability |
2.4 Schneider Electric
| Modell | Core Specs | Vorteile | Anwendung |
| XBTGT5330 | 10.4-Zoll, 640×480, 65536 colors, Ethernet, USB, SD Card | 1. Multi-protocol support (Modbus, Ethernet/IP etc.) | Schneider PLC system, high safety demand, harsh industrial environment |
| 2. High safety design | |||
| 3. Optimized with Schneider PLC | |||
| 4. Rugged industrial design | |||
| HMIGXU3512 | 10.4-Zoll, 640×480, 65536 colors, LED backlight, multi-interfaces | 1. Latest generation model | New project design, long-term lifecycle planning |
| 2. Higher performance | |||
| 3. Longer lifecycle |
2.5 Other Brand Replacements
| Marke | Modell | Kernvorteile |
| Allen鈥態radley | PanelView Plus 7 1000 | Perfect integration with Rockwell PLC, EtherNet/IP supported |
| Omron | NB10W-TW01B | Seamless connection with Omron PLC, multi-protocol compatible |
| Xinje | TG765-XT-C | Hohe Kostenleistung, multi-communication protocol, suitable for small/medium projects |
- Replacement Selection Guide
3.1 Selection by Demand
| Nachfragetyp | Recommended Solution | Key Implementation Points |
| Direkter Ersatz (Minimal Modification) | Pro-face GP-4501TW | 1. Compatible cutout for direct mounting |
| 2. Existing project files importable directly | ||
| 3. No wiring change for power and communication | ||
| Function Upgrade (Add Ethernet) | GP-4501TW / Weinview TK6102i | 1. Realize remote monitoring & data collection |
| 2. Support Modbus TCP and other industrial Ethernet protocols | ||
| Unified Brand (Same PLC Brand) | Matched brand HMI (z.B. Mitsubishi GT2310) | 1. Highest PLC integration |
| 2. Less communication configuration work | ||
| 3. Unified technical support | ||
| Kostenoptimierung (Begrenztes Budget) | Weinview TK6102i / Xinje TG765 | 1. Obvious price advantage |
| 2. Free software reduces project cost | ||
| Full Upgrade (New System) | Higher-spec GP4000 Series | 1. Choose larger memory & higher resolution |
| 2. Support more protocols and expansion modules |
3.2 Replacement Precautions
- Panel Size: Ensure replacement cutout matches original AST3501 dimension W259×H204mm
- Kommunikationsprotokoll: Confirm compatibility with existing PLC protocol
- Software Compatibility: Verify project migration feasibility or re-program requirement
- Nennleistung: Ensure replacement supports DC24V input same as original D24
- Spare Parts Supply: Prioritize in-production models to avoid future discontinuation risk
- Abschluss
The best replacement for Pro-face AST3501-C1-D24 is the official PFXGP4501TADW (GP-4501TW) with seamless replacement and full upgrading. For cross-brand selection, choose according to existing PLC brand, functional requirements and budget: Weinview TK6102i for best cost performance, Mitsubishi GT2310-VTBD for optimal Mitsubishi PLC integration, and Siemens KTP1000 Basic for Siemens system application.
