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Allen-Bradley 2711-B5A9 PanelView Standard Operator Interface

Brand/Manufacturer: Allen-Bradley

Order Number: 2711-B5A9

Type: Operator Interfaces

Country of Origin: USA

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

Configured for human-machine interface and process visualization in DH-485 network architectures, the Allen-Bradley 2711-B5A9 (2711-B5A9 Operator Terminal) provides direct physical/electrical execution. Powered by an 85...264 VAC line input, the terminal features a 5.5-inch monochrome blue mode LCD (256 x 128 pixels), dual keypad and touchscreen entry interfaces, and RS-232 communication ports for controller data exchange and alarm printing.

Suffix Breakdown & Model Matrix

Part Number Display Type Input Mechanism Power Supply Primary Protocol
2711-B5A9 5.5-inch Monochrome Blue LCD Keypad (F1-F10) & Touchscreen 85...264 VAC (120 VAC nominal) RS-232 (DH-485)

Hardware Specifications

Parameter Specification
Model 2711-B5A9
Brand Allen-Bradley
Origin US
Weight 1.70 kg (3.75 lbs)
Dimensions 167 mm x 266 mm x 106 mm (Keypad) / 152 mm x 185 mm x 82 mm (Touch)
Operating Temp 0...55 deg C (32...131 deg F)
Power Consumption 85...264 VAC, 47...63 Hz
Display Screen 5.5-inch diagonal monochrome blue mode LCD (120 x 60 mm display area)
Resolution 256 x 128 pixels
Backlight Rating 100000 hr life (Field replaceable: part # 2711-NL1)
Operator Input 10 function keys (F1...F10) + 128-cell analog touchscreen
Memory Capacity 170 KB application runtime; 240 KB nonvolatile memory
Primary Communication RS-232 (DH-485 protocol, uses cable 2711-NC13)
Auxiliary Port RS-232 Serial Printer Port
Environmental Ratings IP54, IP65, NEMA 12/13, 4X
Certifications UL, CUL, CE, C-Tick

Profinet / EtherNet/IP Deterministic Networks & Firmware Flash Compatibility

The operator interface communicates across serial DH-485 field networks, maintaining real-time data polling rates with Allen-Bradley SLC 500, MicroLogix, and ControlLogix systems via RS-232 bitstreams. Internal firmware flash compatibility ensures application layout and object execution across PanelBuilder32 software setups. High galvanic isolation across the 120 VAC input power stage protects internal display controllers and logic circuits from line noise transients and electromagnetic interference.

Frequently Asked Questions

Q: What power source is required to operate the 2711-B5A9 terminal?

A: The terminal operates on line AC power spanning 85...264 VAC at 47...63 Hz (120 VAC nominal).

Q: Can the backlight on the 2711-B5A9 monochrome display be replaced in the field?

A: Yes, the 100,000-hour rated LED display backlight is field-replaceable using Allen-Bradley part number 2711-NL1.

Q: Which cable is recommended for connecting the primary RS-232 port to a DH-485 network?

A: The terminal utilizes the Allen-Bradley 2711-NC13 point-to-point serial cable for direct RS-232 (DH-485) processor connection.

Field Installation Guidelines

  1. Cut the mounting panel according to standard PanelView 550 cutout dimensions and inspect the environmental sealing gasket.
  2. Insert the 2711-B5A9 terminal into the cutout, tightening all perimeter mounting screws evenly to maintain IP65 / NEMA 4X ingress protection.
  3. Wire AC line supply power (85...264 VAC) to the terminal block, ensuring proper Line, Neutral, and Ground terminal connections.
  4. Connect the 2711-NC13 communication cable between the RS-232 DH-485 port and the host controller interface.
  5. Secure a heavy-gauge protective earth (PE) grounding conductor from the chassis ground terminal to the main enclosure earth bus bar.
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