The 1756-L62S ControlLogix GuardLogix Processor Module from Rockwell Automation is a high-reliability safety-rated PLC controller designed for industrial systems that require both standard automation control and integrated functional safety within a single ControlLogix architecture.
Unlike standard L62 processors, the L62S belongs to the GuardLogix safety platform, meaning it is engineered for SIL-rated applications where machine safety, emergency shutdown logic, and protected control execution must operate in a unified environment. It is widely deployed in high-risk industrial sectors such as manufacturing, energy, and process automation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-L62S |
| Series | ControlLogix GuardLogix |
| Processor Type | Safety + Standard Dual-Control CPU |
| Standard User Memory | 4 MB |
| Safety Memory | ~1.5 MB (dedicated safety tasks) |
| Nonvolatile Memory | 64 MB CompactFlash (typical) |
| Maximum I/O Capacity | Up to 128,000 points |
| Safety Rating | SIL 3 / PLe capable system design |
| Controller Architecture | Dual-task (standard + safety partner) |
| Communication | Via 1756 communication modules (EtherNet/IP, ControlNet, DeviceNet, DH+) |
| Programming Software | RSLogix 5000 / early Studio 5000 GuardLogix |
| Serial Port | RS-232 (DF1, ASCII, DH-485 support) |
| Backplane Current (5V DC) | ~1.2 A |
| Backplane Current (24V DC) | ~14 mA |
| Power Dissipation | ~3.5–6 W |
| 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 | ~0.35–0.8 kg |
This module is designed for standard ControlLogix chassis mounting, enabling seamless integration into existing industrial racks while adding safety-layer functionality without redesigning system architecture.
Recommended Related Models
For system expansion, migration, or safety architecture design, the following modules are commonly paired with the 1756-L62S:
- 1756-L71S / L72S GuardLogix CPUs (modern safety upgrades)
- 1756-EN2T EtherNet/IP communication module
- 1756-ENBT Ethernet bridge module
- 1756-RM safety redundancy module
- 1756-IB16 / OB16 standard I/O modules
- 1756-IF8 / OF8 analog modules
Popular Allen-Bradley ControlLogix & GuardLogix Models
Within the same safety and ControlLogix ecosystem, widely used controllers include:
- 1756-L61S GuardLogix CPU
- 1756-L62S GuardLogix CPU
- 1756-L73S high-performance safety controller
- 1756-L7SP safety partner module
- 1756-L71 / L72 standard ControlLogix CPUs
- 1756-EN2T advanced Ethernet modules
These systems form the foundation of modern safety-integrated automation architectures across global industries.
