Overview
The Allen Bradley 1791D-8B8P is a CompactBlock I/O combination base module designed for distributed automation systems. It integrates both input and output functionality in a compact housing, enabling efficient bidirectional signal handling for machine-level control applications with reduced wiring and simplified installation.
General Information
Part Number: 1791D-8B8P
Brand: Allen-Bradley (Rockwell Automation)
Country of Origin: United States
Series: 1791 CompactBlock I/O
Type: Combined Discrete Input/Output Base Module (CompactBlock I/O)
Mounting: DIN rail or machine-mounted compact housing
Application: Industrial automation, hybrid signal control, machine monitoring systems
Power Specifications
Supply Voltage: 24 V DC nominal
Operating Power: Supplied via I/O system power input
Field Power Requirement: External 24 V DC for input/output operation
Protection: Overcurrent, short-circuit, and reverse polarity protection
Status Indication: LED indicators for channel and module status
Communication & Interface
Network Interface: CompactBlock I/O communication interface
Control Integration: PLC-based distributed I/O system compatibility
Data Exchange: Bidirectional digital input/output signal handling
Diagnostics: Channel fault detection and module health monitoring
Wiring Interface: Integrated compact terminal connection system
Environmental
Operating Temperature: 0 to +55 °C
Storage Temperature: −40 to +85 °C
Humidity: 5% to 95% non-condensing
Vibration Resistance: Industrial machine environment rated
Protection Class: Industrial-grade enclosure suitable for factory installation
Dimensions & Weight
Dimensions: 150 x 38 x 48 mm
Weight: 0.18 kg
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