Allen-Bradley 1791ES-IB16 Safety Input Module

Allen-Bradley 1791ES-IB16 CompactBlock EtherNet/IP Safety Input Module is a Guard I/O block that provides 16 isolated safety input signals for safety‑rated control systems, connected over EtherNet/IP. As part of the 1791ES family, this CompactBlock safety input module supports 16 single‑channel inputs (arranged as 8 dual‑channel groups) and includes 16 test outputs to verify safety circuit integrity. The module uses a 24 V DC signaling domain and is housed in an IP20‑rated enclosure suitable for typical machine‑control cabinets.

• Manufacturer: Allen‑Bradley (Rockwell Automation)
• Product family: Guard I/O / 1791ES CompactBlock
• Network: EtherNet/IP Safety
• Safety inputs: 16 (16 single‑channel inputs, 8 dual‑channel groups)
• Test outputs: 16
• Enclosure rating: IP20
• Input signaling: 24 V DC
• Mounting: CompactBlock I/O format
• Applications: safety monitoring for sensors and devices in automated machinery and packaging lines; integrates with safety controllers to enforce guarding schemes

Use this module to extend a safety network with additional input points while preserving fast, safe monitoring of guard devices, two‑hand controls, door interlocks, and emergency‑stop circuits within a Rockwell EtherNet/IP safety architecture.