OVERVIEW

Official designation: Allen-Bradley 1791ES-IB16 (CompactBlock Guard I/O, Safety Input Module)

Role/Application: A safety input module with sixteen single-channel sinking inputs, utilizing CIP Safety over EtherNet/IP for robust distributed safety control up to SIL CL 3 and Performance Level e.

KEY SPECS SUMMARY

Power: 24V DC nominal, 19.2 to 28.8V DC range

Interfaces / Ports: One RJ45 for EtherNet/IP

Indicators: Module status, network status, I/O status LEDs

Operating Temp: Minus 20 degrees C to plus 60 degrees C

Platform / Compatibility: Guard I/O, EtherNet/IP Safety

Limit: SIL CL 3, PLe, Cat 4 compliance, IP20 rating

Lifecycle: Active product status (varies by revision)

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum current consumption of the module at the nominal 24V DC power supply?

A: The current consumption for the module logic and network communication is 250 mA at 24V DC.

Wiring & Installation:

Q: What wire size and insulation rating are recommended for the removable terminal block connections?

A: Use 1.5 mm2 (AWG 16) stranded copper wire with a 75 degrees C insulation rating or higher.

Troubleshooting & Compatibility:

Q: What safety protocol does the 1791ES-IB16 use for communication over the network?

A: The module communicates safety data using CIP Safety layered on top of the standard EtherNet/IP protocol.

Replacement & Upgrades:

Q: What enclosure rating does the 1791ES-IB16 module meet for protection against environmental factors?

A: The 1791ES-IB16 module meets the industry-standard IP20 enclosure rating.