Allen-Bradley | 1734-IV8 | POINT I/O

Product Description: Allen-Bradley 1734-IV8

The Allen-Bradley 1734-IV8 is an 8-channel digital input module in the POINT I/O family, designed for monitoring 24V DC signals from sourcing (PNP) field devices. This module is compact and DIN rail mountable, making it ideal for distributed I/O applications where space efficiency and scalability are key. It provides reliable input detection with channel-to-system isolation and per- channel status LEDs.

Key Features

• 8 sinking input channels for 24V DC signals
• Compatible with sourcing (PNP) field devices
• Solid-state input circuitry for reliable signal acquisition
• LED indicators for each input channel
• Channel-to-backplane optical isolation
• Fits standard POINT I/O terminal bases
• DIN rail mountable and hot-swappable

Technical Specifications

• Number of Inputs: 8
• Input Type: DC Sinking (PNP field device compatible)
• Input Voltage Range: 10–28.8V DC (nominal 24V DC)
• On-State Voltage: ≥10V DC
• Off- State Voltage: ≤5V DC
• On-State Current: 2 mA minimum
• Off-State Current: 1.5 mA maximum
• Isolation Voltage: 50V (field to system)
• Backplane Current Draw: 75 mA at 5V DC
• Operating Temperature: 0°C to 55°C
• Dimensions (HxWxD): approx. 75 x 12 x 55 mm
• Mounting: DIN rail via POINT I/O terminal base (e.g., 1734-TB, 1734-TOP)

Application Areas

• Monitoring of pushbuttons, sensors, and switches
• General-purpose digital signal acquisition
• Distributed control in compact machines
• Automotive, packaging, and material handling systems
• Remote I/O installations in modular architectures

Advantages

• Compact 8-point input module reduces panel space
• Designed for easy integration with PNP field devices
• Clear channel status LEDs aid in diagnostics
• Supports flexible system expansion via POINT I/O architecture
• Hot-swappable for minimal downtime during maintenance