Description
Product Introduction & Engineering Value
The 2711-K5A5 is a PanelView 550 terminal made for older Rockwell installations that rely on keypad-driven operator interaction. It is a practical choice where a monochrome display, dedicated function keys, and straightforward serial communication are enough to keep the machine running.
For replacement work, it is valuable because it preserves the familiar PanelBuilder 32 workflow and the legacy DH-485 communication path. That makes it a common spare in plants that want to avoid touching a stable, older HMI application unless they absolutely have to.
Technical Specifications
| Parameter | Value |
|---|---|
| Catalog number | 2711-K5A5 |
| Product family | PanelView 550 |
| Display type | Monochrome LCD |
| Display size | 5.5 in |
| Resolution | 256 x 128 |
| Input method | Keypad, F1 to F10 |
| Communication | RS-232 (DH-485) |
| Power input | 85 to 264 V AC |
| Frequency | 47 to 63 Hz |
| Power consumption | 45 VA max |
| Application memory | 240 KB nonvolatile / internal memory cited in listings |
| Backlight | Replaceable on earlier series; check series-specific serviceability |
| Mounting | Panel mount |
| Operating temperature | 0 to 55 °C |
Field Application & Trench Experience
A legacy conveyor system went dark because the old operator panel failed during a weekend shutdown. The maintenance crew installed a 2711-K5A5 because it matched the existing keypad-driven workflow and could still talk DH-485 to the controller. The panel came back fast, and the only real delay was checking that the stored application and backlight condition were still acceptable.
This model is a solid fit for older batch panels, utility equipment, and compact machine controls where operators are used to fixed function keys and minimal screen clutter.
2711-K5A5
2711-K5A5
Transparency SOP: QA & Testing
- Visual inspection for lens wear, keypad damage, housing cracks, and connector corrosion.
- Power-up test to verify display contrast, backlight function, and key response.
- Communication test over RS-232 and DH-485 where the application requires it.
- Application load or memory validation using a known-good test image.
- Extended run verification to catch intermittent faults before shipment.
Veteran’s Tech Trap Guide
⚠️ Don’t confuse this with a touchscreen PanelView. The 2711-K5A5 is keypad-based, and the operator training implications are real.
⚠️ Series matters on backlight serviceability. Some listings note replaceable backlights for earlier series, but you need the exact revision before you assume service parts compatibility.
PRO TIP: Confirm the serial settings before installation. DH-485 mismatch is one of the fastest ways to waste time on a replacement that is otherwise electrically fine.
Dynamic FAQ
Q1: Is the 2711-K5A5 a direct replacement for my existing PanelView 550?
A: Yes, if your original unit is the same catalog number and the communication and application settings match.
Q2: What kind of display does it use?
A: A 5.5-inch monochrome LCD with 256 x 128 resolution.
Q3: What communication port does it have?
A: RS-232 with DH-485 communication support.
Q4: What power does it require?
A: 85 to 264 V AC, 47 to 63 Hz.
Q5: Is this sold as new surplus or refurbished stock?
A: Either is common. New surplus means unused OEM inventory, while refurbished means tested and restored for reuse.
Q6: Does it come with warranty coverage?
A: Warranty depends on the seller, but reputable industrial suppliers usually offer coverage for both new surplus and refurbished units.
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