1734-IB8 8-Channel Digital Input Module 24V DC | Allen-Bradley

The Original New Allen-Bradley 1734-IB8 8-Channel Digital Input Module is a POINT I/O standard digital input device designed for 24V DC sinking input applications in distributed industrial automation systems. Fully compatible with POINT I/O communication adapters and Rockwell Automation controllers.

Core Engineering Highlights:
24V DC sinking inputs | 8-channel digital input | 0.5 ms hardware filter + 0–63 ms software filter | 75 mA POINTBus current | 1.6 W power dissipation

Key Features:

• Original New Allen-Bradley 1734-IB8 module

• 8-channel 24V DC sinking digital inputs

• One group of 8 inputs for simplified wiring

• Fixed 0.5 ms hardware input filter

• User-configurable software filter: 0–63 ms

• 8 yellow input status LEDs + 1 green/red module status LED

• Keyswitch position: 1

• Compact form factor for space-constrained panels

• DIN rail mounting

• Open-style enclosure (IP20)

Applications:

• Digital signal acquisition from sensors and switches

• Conveyor and material handling systems

• Packaging machinery control

• General factory automation

• Distributed I/O systems

• Industrial machine control panels

Technical Specifications:

• Catalog Number: 1734-IB8

• Module Type: POINT I/O Digital DC Input Module, Sinking

• Inputs: 8 (1 group of 8)

• Nominal Input Voltage: 24V DC

• Input Voltage Range: 10–28.8V DC

• Nominal Input Current: 4 mA @ 24V DC

• Input Current Range: 2–5 mA

• OFF-State Input Current (Min): 1.5 mA

• Input Impedance: 3.6 kΩ nominal (4.7 kΩ max)

• Hardware Input Filter: 0.5 ms fixed

• Software Input Filter: 0–63 ms user-configurable

• POINTBus Current: 75 mA max @ 5V DC

• Power Dissipation: 1.6 W max @ 28.8V DC

• Thermal Dissipation: 5.5 BTU/hr max @ 28.8V DC

• Isolation Voltage: 50V continuous (tested to withstand 2500V DC for 60s)

• Indicators: 8 yellow input status LEDs, 1 green/red module status LED

• Keyswitch Position: 1

• Terminal Base Compatibility: 1734-TB, 1734-TBS

• Dimensions (HxWxD): 56 x 12 x 75.5 mm (2.2 x 0.47 x 2.97 in.)

• Weight: 31.8 g (1.12 oz)

• Enclosure Type: Open-style (IP20)

• Mounting: DIN Rail

• Operating Temperature: –20°C to +55°C (–4°F to 131°F)

• Storage Temperature: –40°C to +85°C (–40°F to 185°F)

• Max. Ambient Humidity (non-condensing): 95%

• Wiring Category: 2

• Country of Origin: USA

System Compatibility:

• Rockwell Automation POINT I/O communication adapters (1734-AENT, 1734-AENTR)

• POINT I/O backplane systems

• ControlLogix, CompactLogix, and GuardLogix controllers

• EtherNet/IP, ControlNet, and DeviceNet networks (Series C and later)

• 1734-TB / 1734-TBS terminal base assemblies

Related Products:

• 1734-AENTR – EtherNet/IP adapter for distributed POINT I/O systems

• 1734-TB – Terminal base for field wiring (screw type)

• 1734-TBS – Terminal base for field wiring (spring clamp)

• 1734-OB8 – 8-channel digital output module (sourcing)

• 1734-IB8S – Safety-rated version (SIL 3 / PLe) for safety applications

• 1734-IB8SK – Conformal coated version for harsh environments

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley, POINT I/O, ControlLogix, and CompactLogix are trademarks of Rockwell Automation.