
Application Scenarios:In a high-speed packaging machine where operator access is frequent, a traditional setup would require a separate safety relay cabinet alongside the standard PLC. The 1768-L43S solves this by unifying both functions. It directly monitors safety door switches and E-Stops via integrated safety I/O, while simultaneously running the complex machine logic. If a safety breach is detected, its dual-core architecture triggers a certified safe stop within the same chassis, eliminating the latency and wiring complexity of external safety relays.
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | 1768-L43S |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Line | Compact GuardLogix (5370 Safety) |
| Controller Type | Integrated Safety (Standard + Safety) |
| Safety Rating | SIL 3 (IEC 61508), PLe (ISO 13849-1) |
| Standard Memory | 2.0 MB |
| Safety Memory | 0.5 MB |
| Local I/O Capacity | Up to 16 x 1769 modules |
| Communication Ports | 1x RS-232 (serial), 1x EtherNet/IP (CIP Safety) |
| Power Consumption | 33.6 W (max), 7.5 W dissipation |
| Backplane Current | 1.4A @ 24V DC |
| Operating Temperature | 0 to 60 °C |
| Dimensions (HxWxD) | 131.6 x 89.6 x 122.1 mm |
| Mounting | DIN Rail or Panel |







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