| Feature | Specification |
|---|---|
| Product Name | Allen-Bradley PanelView 550 |
| Model Number | 2711-K5A2L1 |
| Display Type | Blue Mode Monochrome LCD |
| Input Type | Stainless-steel Domed Keypad |
| Communication Port | DH-485 Communication |
| Input Voltage | 120V AC |
| Origin | USA |
| Weight | 1.2 kg (2.6 lbs) |
| Dimensions | 167 mm x 266 mm x 106 mm |
The Allen-Bradley 2711-K5A2L1 is a rugged human-machine interface (HMI) designed for monitoring and controlling automated processes within an industrial environment. Featuring a high-reliability membrane keypad and a crisp monochrome display, this PanelView 550 terminal allows operators to interact with PLC systems via the DH-485 protocol, providing a durable solution for factory floor data visualization and machine parameter adjustments.
Q&A
Q: Can the backlight on the 2711-K5A2L1 be replaced if it fails? A: Yes, the PanelView 550 series features a field-replaceable backlight lamp. If the screen becomes dim or dark while the unit still functions, replacing the backlight (typically part number 2711-NL1) can extend the service life of the terminal without requiring a full unit replacement.
Q: What is the primary difference between the “K” and “T” versions of this terminal? A: The “K” in the model number (e.g., 2711-K5A2L1) indicates a Keypad-only interface, whereas models starting with “T” feature a Touchscreen. The keypad version is often preferred in environments where operators wear heavy gloves or where the screen is subject to frequent splashing and debris.
Q: How is application software transferred to this PanelView 550? A: Applications are generally created using PanelBuilder32 software. The resulting files can be downloaded to the terminal through the DH-485 communication port using a 1747-PIC converter or a similar interface, or via a PCMCIA memory card for local loading.
