Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 1785K-PMPP-1700 |
| Display Size | 8.4 inches |
| Display Type | Color TFT |
| Display Resolution | VGA (640 × 480) |
| Colors | 256 |
| Operator Input | Touchpanel (membrane keypad with configurable control buttons) |
| Input Voltage | 24 V DC |
| Current Consumption | 1.1 A |
| Power Consumption | 23 W (typical) |
| Serial Ports | 2 × RS-232 / RS-422 |
| Weight, Approx. | 3.18 kg (7.00 lb) |
| Heat Dissipation | Approx. 78 BTU/hr |
| Operating Temperature | 0…50 °C (typical for series) |
| Certifications | UL, CSA, CE |
| Enclosure Compatibility | Designed for industrial panel mounting |
4. Product Introduction
The Eaton Cutler-Hammer 1785K-PMPP-1700 is a PanelMate Power Pro 1700 series industrial operator terminal. It features an 8.4-inch color TFT display with VGA resolution and a membrane touchpanel for operator input.
The terminal communicates with PLCs and controllers from multiple manufacturers through dual RS-232/RS-422 serial ports. It supports template-based graphics, alarm handling, and message storage. This legacy HMI remains in service on many existing machines where a full platform migration is not required. New-surplus units provide a practical replacement path for maintaining these systems.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Blank or dark display | Power supply failure or loose connection | ❌ Low | Measure 24 V DC at terminal power terminals | Verify external 24 V supply and wiring first |
| No touch response | Touchpanel calibration or hardware fault | ✅ High | Test known touch points; check for physical damage | Recalibrate if possible; replace unit if unresponsive |
| Cannot communicate with PLC | Serial cable, baud rate, or protocol mismatch | ✅ High | Verify cable pinout and port settings | Confirm RS-232/RS-422 configuration matches PLC |
| Intermittent display flicker | Marginal power or overheating | ✅ Medium | Check supply voltage under load and enclosure airflow | Improve ventilation or stabilize 24 V supply |
| Firmware or configuration lost | Power interruption during save | ✅ Medium | Reload application from backup | Maintain external configuration backup |
| Unit powers but no application runs | Corrupted project or hardware failure | ✅ High | Attempt reload of known-good application file | Replace terminal if reload fails |
If the terminal still does not function after these checks, capture clear photos of the display, power connections, and serial wiring, then contact technical support with the exact symptoms.

1785K-PMPP-1700

1785K-PMPP-1700
6. Frequently Asked Questions (FAQ)
Q: Is the 1785K-PMPP-1700 still in production?
A: No. The PanelMate Power Pro 1700 series is discontinued. New-surplus and refurbished units are the available sources for replacements.
Q: What is the difference between the 1785K-PMPP-1700 and similar 1785T or 1775 models?
A: The 1785K-PMPP-1700 is the color 8.4-inch touchpanel version in the Power Pro 1700 series. Other catalog numbers in the family differ in display size, color vs. grayscale, or keypad style.
Q: What power supply does it require?
A: A stable 24 V DC source capable of at least 1.1 A. Typical power consumption is 23 W.
Q: Can it communicate with Allen-Bradley PLCs?
A: Yes. The dual serial ports support common industrial protocols used with Allen-Bradley and other major PLC brands when properly configured.
Q: Does it have Ethernet?
A: No. Communication is via the two serial (RS-232/RS-422) ports only.
Q: Is the backlight field-replaceable?
A: On many PanelMate Power Pro units the backlight is designed for field service. Confirm the specific revision of your unit before ordering a replacement backlight.
Q: Why is a surplus unit priced lower than original list?
A: These are genuine Eaton Cutler-Hammer terminals that left the factory and have never been installed, or fully tested refurbished units. They carry a functional warranty from the seller but are outside the original manufacturer support window.

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