Pro-face PFXFP5700TPD Retrofit-Compatible HMI Panel

Pro-face PFXFP5700TPD Retrofit-Compatible HMI Panel for Legacy Systems

The Pro-face PFXFP5700TPD is a ruggedized industrial HMI touch panel engineered for demanding automation environments. As legacy GP-series and SP-series HMI units reach end-of-life or become increasingly difficult to source, the PFXFP5700TPD provides a proven retrofit path that preserves existing screen logic, communication links, and panel cutout dimensions — minimizing engineering rework and unplanned downtime during system modernization.

Whether you are replacing a discontinued Pro-face GP2000 series, GP3000 series, or an aging SP5000 series display, the PFXFP5700TPD is designed to integrate into existing control cabinet layouts with minimal structural modification. Its wide-format TFT display, IP65-rated front panel, and support for multiple communication protocols make it a reliable choice for retrofit projects across process control, machine automation, and utility management applications.

Upgrade Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful PFXFP5700TPD retrofit begins well before the unit arrives on site. Engineers should start by auditing the existing HMI wiring harness and confirming that the 24 VDC power supply — often a Siemens SITOP PSU100S or an Omron S8VS series unit — can deliver sufficient current for the new panel without voltage drop across long cable runs. If the control cabinet also houses a Mitsubishi MELSEC Q-series or iQ-R series PLC, verify that the communication driver selected in GP-Pro EX matches the PLC’s CPU module protocol, whether that is MC Protocol over RS-422 or Ethernet/IP over the RJ45 port.

For installations where the legacy HMI communicated with a Siemens S7-300 or S7-400 CPU via MPI or PROFIBUS DP, the PFXFP5700TPD supports protocol migration to PROFINET or Modbus TCP, which may require updating the PLC’s communication module — for example, replacing a CP 343-1 with a CP 343-1 Advanced — alongside the HMI swap. This is also an appropriate time to review whether the existing Wago 750-series or Phoenix Contact Inline I/O terminal blocks require re-addressing after the communication link is re-established.

Panel cutout dimensions must be confirmed against the existing cabinet door. Many GP3000-era installations used a 310 × 240 mm cutout; the PFXFP5700TPD may require a slightly different opening, and a stainless steel adapter frame is recommended to maintain IP65 integrity at the cabinet face. Mounting torque on the panel clamps should follow Pro-face specifications to avoid gasket deformation.

Where the legacy system included a Pro-face GP-Viewer or remote monitoring client connected via Ethernet, the PFXFP5700TPD’s built-in Ethernet port supports the same remote access architecture, preserving SCADA visibility without requiring changes to the network switch or firewall rules. If the site uses an Allen-Bradley PanelView or a Weintek cMT series as a secondary display in the same cabinet, confirm that the network segment and IP addressing scheme accommodates the new panel without conflict.

Before powering up, label all terminal connections on the existing wiring harness, photograph the original COM port pin assignments, and back up the legacy screen project file using GP-Pro EX’s project export function. This backup becomes the baseline for screen data migration and tag re-linking on the PFXFP5700TPD.

Downtime Control During System Migration

Minimizing production downtime during an HMI retrofit requires a structured changeover plan. The recommended approach is to complete all pre-work — screen data migration, communication driver configuration, and IP address assignment — on a bench unit before the scheduled maintenance window. Using GP-Pro EX’s offline simulation mode, engineers can validate all screen transitions, alarm displays, and data logging functions against the live PLC program without interrupting production.

During the physical swap, the sequence should be: isolate the 24 VDC supply to the HMI circuit only (not the PLC or I/O), disconnect the communication cable, remove the legacy panel, install the PFXFP5700TPD, reconnect the communication cable, restore power, and confirm communication link status within the first two minutes. If the PLC is a Mitsubishi FX5U or a Siemens S7-1200, the CPU continues executing its control program throughout the HMI replacement, maintaining field control continuity for outputs, interlocks, and safety relays.

A cold-start checklist should include: verify all alarm setpoints are correctly mapped, confirm analog input scaling on any connected Yokogawa or Endress+Hauser field instruments, and test all operator pushbutton functions on the new touch screen before releasing the line. Total changeover time for a prepared team is typically 30 to 90 minutes depending on cabinet accessibility and wiring complexity. All PFXFP5700TPD units shipped by NINERMAS are pre-tested for display function, touch accuracy, and communication port integrity before dispatch, reducing the risk of DOA failures during the maintenance window.

Retrofit Support FAQ

Q1: Is the PFXFP5700TPD a direct drop-in replacement for the GP3500-T1H1?
A: The PFXFP5700TPD is functionally compatible and supports the same communication protocols, but panel cutout dimensions and mounting clamp positions may differ. We recommend verifying the cutout size and ordering an adapter frame if required. Screen data created for the GP3500 can be migrated using GP-Pro EX with minor tag re-linking.

Q2: What communication protocols does the PFXFP5700TPD support for legacy PLC connections?
A: The unit supports RS-232C, RS-422/485, and Ethernet-based protocols including Modbus TCP, PROFINET, Ethernet/IP, and MC Protocol. This covers the majority of legacy Siemens S7, Mitsubishi MELSEC, Omron CJ/CS, and Allen-Bradley ControlLogix installations. Protocol driver selection is configured in GP-Pro EX prior to deployment.

Q3: How is the unit tested before shipment, and what does the 12-month warranty cover?
A: Every PFXFP5700TPD unit undergoes pre-shipment functional testing covering display quality, touch panel calibration, all communication ports, and power input range. The 12-month warranty covers hardware defects and component failures under normal operating conditions from the date of delivery. DOA units are replaced promptly upon confirmation.

Q4: What is the typical lead time and stock availability?
A: NINERMAS maintains stock of the PFXFP5700TPD to support urgent retrofit and breakdown replacement requirements. Standard orders are dispatched within 3–5 business days. For large-quantity or project-based orders, contact our team directly to confirm availability and arrange priority allocation.