Configured for discrete operator‑interface execution in PanelView Standard architectures, the Allen‑Bradley 2711‑T5A16L1 (PanelView 550) provides direct physical/electrical execution. It performs keypad/touch input handling, alarm display, and DH‑485 communication for machine‑level HMI applications.
Hardware Specifications
Parameter
Specification
Model
2711‑T5A16L1
Brand
Allen‑Bradley
Series
PanelView Standard
Product Type
Operator Interface Terminal
Display Size
5.5‑inch monochrome LCD
Input Method
Touchscreen
Communication Port
DH‑485
Input Voltage
24 V dc
Memory
Application memory (non‑volatile)
Core Performance
HMI display, alarm interface, DH‑485 communication
Communication Behavior and Application Loading
PanelView Standard terminals maintain deterministic DH‑485 communication velocity to ensure stable tag updates between the terminal and SLC/PLC controllers. The 2711‑T5A16L1 supports application loading via PanelBuilder32 and stores runtime files in non‑volatile memory. During power‑up, the terminal validates the application checksum; mismatches prevent runtime execution to avoid undefined HMI states.
Frequently Asked Questions
Q: Can the 2711‑T5A16L1 be removed while the panel is energized? A: Removal under power is not recommended. De‑energize the panel to avoid transient DH‑485 faults or display corruption.
Q: Does the terminal support Ethernet? A: No. This model supports DH‑485 only.
Q: How is the application downloaded? A: Applications are transferred using PanelBuilder32 via DH‑485 or a direct PC connection depending on configuration.
Field Installation Guidelines
Verify DH‑485 cabling and node addressing before energizing.
Maintain proper grounding to reduce display noise and communication errors.
Confirm touchscreen calibration after installation.
Inspect power wiring for correct polarity and stable 24 V dc supply.
Validate application checksum and alarm banner behavior during commissioning.
