The 1756-L62 ControlLogix 5562 Processor Module from Rockwell Automation is a high-memory, mid-to-high performance PLC controller designed for complex industrial automation systems that require strong logic processing, large data handling capacity, and flexible communication architecture.
Positioned in the ControlLogix 5560/5562 generation, the L62 is widely used in demanding process industries, large-scale manufacturing lines, and infrastructure automation where system stability and program capacity are critical. Even as a discontinued model, it remains highly relevant in installed-base systems worldwide due to its robustness and long lifecycle support.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-L62 |
| Series | ControlLogix 5562 |
| Processor Type | PLC CPU Module |
| User Memory | 4 MB |
| I/O Memory | 478 KB |
| Nonvolatile Memory | 64 MB CompactFlash (1784-CF64) |
| Maximum I/O Capacity | Up to 128,000 points |
| Serial Communication | RS-232 (DF1, DH-485, ASCII) |
| Network Support | Via external modules (EtherNet/IP, ControlNet, DeviceNet, DH+) |
| Backplane Current (5.1V DC) | ~1.2 A |
| Backplane Current (24V DC) | ~14 mA |
| Power Dissipation | ~3.5 W |
| Isolation Voltage | 30 V continuous |
| Programming Software | RSLogix 5000 (legacy versions) |
| Battery | 1756-BA1 / 1756-BATM |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Dimensions (H × W × D) | 13.3 × 5.1 × 14.5 cm |
| Weight | ~0.32–1.0 kg (varies by revision/packaging) |
The L62 uses a standard single-slot ControlLogix chassis design, allowing seamless integration into existing systems without hardware redesign.
Recommended Related Models
For upgrades, replacements, or system expansion, engineers commonly pair the L62 with:
- 1756-L71 / L72 ControlLogix CPUs (modern replacements)
- 1756-EN2T EtherNet/IP communication module
- 1756-ENBT Ethernet bridge module
- 1756-CNB ControlNet bridge module
- 1756-IB16 / 1756-OB16 digital I/O modules
Popular Allen-Bradley ControlLogix Models
Within the same ecosystem, widely used controllers include:
- 1756-L61 mid-range CPU module
- 1756-L63 higher memory ControlLogix controller
- 1756-L71 / L72 modern high-speed processors
- 1756-EN2T advanced Ethernet communication modules
- 1756-DNB DeviceNet communication modules
These models reflect the evolution from legacy deterministic control toward modern industrial networking and IIoT-ready architectures.
