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Allen-Bradley 2711R-T7T PanelView 800 Graphic Terminal
The Allen-Bradley 2711R-T7T is a 7-inch PanelView 800 HMI featuring a high-resolution touchscreen, extensive protocol support, and robust integration for industrial control systems.
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SKU: 1756-L55M12
Allen-Bradley 1756-L55M12 Controller Processor
The Allen-Bradley 1756-L55M12 is a Logix5555 controller with 750KB of user memory. It supports multi-network communication including EtherNet/IP and ControlNet for high-performance automation.
The Allen-Bradley 1756-L55M12 is a core processing component within the Logix5555 series. This controller executes complex logic and manages high-speed automation tasks. It provides a flexible solution for distributed control systems. The unit integrates easily into standard ControlLogix chassis. Consequently, it remains a reliable choice for legacy system maintenance and upgrades.
Memory and Data Handling
This processor features 750 kilobytes of user memory for logic and data storage. Additionally, it reserves 208 kilobytes specifically for I/O memory operations. While this model lacks onboard non-volatile memory, it manages volatile data efficiently during active sessions. Users must utilize a 1756-BA1 lithium battery to preserve data during power loss. This configuration ensures consistent performance for medium-scale industrial programs.
Network and Communication Support
The 1756-L55M12 supports a wide variety of industrial communication protocols. It interfaces with EtherNet/IP, ControlNet, and DeviceNet networks seamlessly. Furthermore, it maintains compatibility with older DH+ and Universal Remote I/O systems. This broad connectivity allows the processor to bridge different hardware generations. It also supports redundant controller architectures through ControlNet media.
Electrical and Environmental Specifications
Allen-Bradley engineered this controller to withstand rigorous factory conditions. It features the following technical characteristics:
- Backplane Current (5.1V DC):Â 1.23 Amps
- Backplane Current (24V DC):Â 0.014 Amps
- Power Dissipation:Â 5.6 Watts
- Operational Temperature: 0°C to 60°C (32°F to 140°F)
- Isolation Voltage:Â 30V (continuous)
- Shock Rating:Â 30g (operating)
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Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2094-BM02-S |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.9 kg |
| Dimensions | 3.5 x 13 x 14.5 cm |
| Operating Temp | 0 to +50 deg C (Standard Industrial Range) |
| Power Consumption | 650 VDC nominal input / 115 Ohm internal shunt resistor |
| Module Type | Servo Drive (Axis Module) |
| Product Range | ControlLogix / Kinetix 6000 |
| System Classification | PLC Motion Control |
| Continuous Current | 10.3 A (RMS), 14.6 A (Sine Peak) |
| Velocity Loop Bandwidth | 500 Hz |
| Current Loop Frequency | 1300 Hz |
| Efficiency Rating | 98% |
Industrial Control & Deterministic Driving Network
The Allen-Bradley 2094-BM02-S interacts directly over backplane bus communication velocity networks to achieve microsecond-level synchronization across adjacent drive modules. The hardware features deterministic network compatibility, letting control processors command motion trajectories with minimal jitter. It supports peak enhancement technology, scaling the nominal inverter output profile from a standard 150% threshold up to 250% during peak torque demands. This scaling permits rapid rotor acceleration and deceleration profiles without triggering overcurrent trips. Integrated Safe-Torque Off (STO) hardware circuits provide independent physical galvanic control paths, disabling gating signals to the output power transistors to prevent unexpected motor rotation during active maintenance states.Frequently Asked Questions
Q: What are the backplane current and configuration limits when expanding axis modules on a single rail?A: The module must be inserted into an authorized Kinetix 6000 power rail, supporting up to seven axis modules alongside one master power module. The cumulative peak current draw must not exceed the structural rating of the shared copper backplane link.Q: Is this hardware compatible with live hot-swapping procedures?A: No. The shared 650 VDC bus lines pose arc-flash and component damage hazards. System DC bus voltage must be entirely drained and verified below safe thresholds before seating or unseating the module from the rail structure.Q: Can the internal 115 Ohm shunt resistor handle high-inertia braking loads?A: The internal shunt resistor is designed for short-duration thermal dissipation. High-inertia or cyclic deceleration applications require an external, isolated shunt module to prevent DC bus overvoltage faults.Field Installation Guidelines
- Enclosure Clearance & Thermal Profile: Maintain a minimum enclosure installation depth of 10.7 inches. Ensure unimpeded vertical ventilation spacing above and below the module chassis to prevent heat sink thermal saturation.
- Cable Separation Architecture: Physically isolate unshielded high-voltage power cables, including motor leads and shunt resistor lines, from low-level digital feedback encoder loops and communication wires to suppress cross-talk.
- Shielding and Ground Boundary: Terminate all motor cable shields at the designated grounding clamp on the power rail base. Maintain a low-impedance ground plane across the entire mounting subpanel.
- Overcurrent Protection: Install specified circuit breakers or high-speed semiconductor fuses upstream of the main power distribution block to guard the internal solid-state components against phase-to-phase short circuits.
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