Allen-Bradley 2711-T9C8L1 PanelView 900 Operator Terminal
Configured for human-machine interface execution in Data Highway Plus network environments, the Allen-Bradley 2711-T9C8L1 (2711-T9C8L1 PanelView 900) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2711-T9C8L1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 7.00 lbs (3.18 kg) |
| Dimensions | 16 x 14 x 8 in |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | 24 VDC (18-32 VDC operating range, 24 W max) |
| Display Type | 9-inch Color Active Matrix TFT |
| Input Interface | Analog Resistive Touchscreen |
| Communication Ports | DH+ (Data Highway Plus), RS-232 Printer Port |
| Internal Memory | 1008 KB Application Memory |
| Replacement Backlight | 2711-NL2 |
| Communication Cable | 2711-NC13 |
| Hardware Series | Series A, B, C, D, E, F |
Deterministic Backplane and Field Network Integration
The terminal operates deterministically over Allen-Bradley DH+ networks using token-ring architecture at 57.6 kbps, 115.2 kbps, or 230.4 kbps baud rates. Direct memory access routines interface directly with SLC 500, PLC-5, and ControlLogix data files, bypassing complex PLC ladder logic messaging routines. Internal firmware flash architecture maintains cross-revision compatibility across hardware Series A through F, delivering consistent bit-mapped graphics processing and alarm queue management without requiring backplane bus performance throttling.
Frequently Asked Questions
Q: What are the electrical isolation requirements for the 24 VDC power supply interface?
A: The 24 VDC supply terminal requires a safety extra-low voltage (SELV) or protected extra-low voltage (PELV) power source. The unit contains internal surge suppression, but operational voltage must remain strictly within the 18 to 32 VDC threshold to prevent unexpected system resets.
Q: How is printer communication routed without interrupting DH+ network traffic?
A: The RS-232 port operates as a dedicated point-to-point interface configured strictly for ASCII print output or serial data logging. It uses independent UART buffer hardware, ensuring printer operations run asynchronously without introducing latency into the primary DH+ communication stack.
Q: Can the backlight assembly 2711-NL2 be replaced while the module is powered?
A: No. Power must be completely removed from the terminal prior to replacing the backlight module. High AC voltages are present on the CCFL inverter board, presenting an electrical shock hazard during disassembly.
Field Installation Guidelines
- Panel Cutout and Mechanical Mounting: Ensure the enclosure panel opening matches the standard 9-inch PanelView cutout dimension. Verify that the sealing gasket is intact and properly seated in the bezel channel prior to insertion.
- Clamping Torque: Tighten all panel mounting clamps evenly in a alternating sequence to a torque of 10 to 12 lb-in (1.1 to 1.4 N-m). Over-tightening causes bezel deformation and compromises NEMA Type 4X/12 ingress protection ratings.
- Grounding Protocols: Connect a heavy-gauge copper grounding strap (minimum 14 AWG) directly from the terminal functional earth screw to the main enclosure grounding bus bar.
- DH+ Network Wiring: Terminate the Data Highway Plus network cable using 120 ohm end-of-line terminating resistors across Clear and Blue signal conductors at both physical end nodes. Keep communication cables isolated from high-voltage AC motor lines by at least 200 mm to prevent electromagnetic interference.
Allen-Bradley 2711-T9C8L1 PanelView 900 Operator Terminal
Allen-Bradley 2711-T9C8L1 PanelView 900 Operator Terminal
Configured for human-machine interface execution in Data Highway Plus network environments, the Allen-Bradley 2711-T9C8L1 (2711-T9C8L1 PanelView 900) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2711-T9C8L1 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 7.00 lbs (3.18 kg) |
| Dimensions | 16 x 14 x 8 in |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | 24 VDC (18-32 VDC operating range, 24 W max) |
| Display Type | 9-inch Color Active Matrix TFT |
| Input Interface | Analog Resistive Touchscreen |
| Communication Ports | DH+ (Data Highway Plus), RS-232 Printer Port |
| Internal Memory | 1008 KB Application Memory |
| Replacement Backlight | 2711-NL2 |
| Communication Cable | 2711-NC13 |
| Hardware Series | Series A, B, C, D, E, F |
Deterministic Backplane and Field Network Integration
The terminal operates deterministically over Allen-Bradley DH+ networks using token-ring architecture at 57.6 kbps, 115.2 kbps, or 230.4 kbps baud rates. Direct memory access routines interface directly with SLC 500, PLC-5, and ControlLogix data files, bypassing complex PLC ladder logic messaging routines. Internal firmware flash architecture maintains cross-revision compatibility across hardware Series A through F, delivering consistent bit-mapped graphics processing and alarm queue management without requiring backplane bus performance throttling.
Frequently Asked Questions
Q: What are the electrical isolation requirements for the 24 VDC power supply interface?
A: The 24 VDC supply terminal requires a safety extra-low voltage (SELV) or protected extra-low voltage (PELV) power source. The unit contains internal surge suppression, but operational voltage must remain strictly within the 18 to 32 VDC threshold to prevent unexpected system resets.
Q: How is printer communication routed without interrupting DH+ network traffic?
A: The RS-232 port operates as a dedicated point-to-point interface configured strictly for ASCII print output or serial data logging. It uses independent UART buffer hardware, ensuring printer operations run asynchronously without introducing latency into the primary DH+ communication stack.
Q: Can the backlight assembly 2711-NL2 be replaced while the module is powered?
A: No. Power must be completely removed from the terminal prior to replacing the backlight module. High AC voltages are present on the CCFL inverter board, presenting an electrical shock hazard during disassembly.
Field Installation Guidelines
- Panel Cutout and Mechanical Mounting: Ensure the enclosure panel opening matches the standard 9-inch PanelView cutout dimension. Verify that the sealing gasket is intact and properly seated in the bezel channel prior to insertion.
- Clamping Torque: Tighten all panel mounting clamps evenly in a alternating sequence to a torque of 10 to 12 lb-in (1.1 to 1.4 N-m). Over-tightening causes bezel deformation and compromises NEMA Type 4X/12 ingress protection ratings.
- Grounding Protocols: Connect a heavy-gauge copper grounding strap (minimum 14 AWG) directly from the terminal functional earth screw to the main enclosure grounding bus bar.
- DH+ Network Wiring: Terminate the Data Highway Plus network cable using 120 ohm end-of-line terminating resistors across Clear and Blue signal conductors at both physical end nodes. Keep communication cables isolated from high-voltage AC motor lines by at least 200 mm to prevent electromagnetic interference.
