Configured for 24 VDC digital signal acquisition in Allen-Bradley Point I/O systems, the Allen-Bradley 1734-IV8/C (1734-IV8/C Digital DC Sourcing Input Module) provides direct field input execution through eight source input channels.

Model Configuration Details

The 1734-IV8/C is a POINT I/O digital DC sourcing input module designed for distributed I/O applications. The module provides eight 24 VDC input channels with a maximum input current of 5 mA per channel.

The module communicates through the POINTBus backplane system and requires 75 mA POINTBus current. It is designed for integration into modular POINT I/O assemblies where distributed digital field signals are collected and transferred to the controller system.

Hardware Specifications

Point I/O Network Characteristics

The 1734-IV8/C applies Allen-Bradley I/O density scaling technology within the POINT I/O modular platform. The compact module format allows multiple digital input channels to be installed in distributed control architectures while maintaining centralized controller communication.

The module communicates through the POINTBus network interface, allowing input data exchange between field devices and the controller system. Proper firmware flash compatibility and adapter configuration should be verified when adding the module to an existing POINT I/O installation.

Ordering Information

The standard shipment configuration includes:

• 1 x Allen-Bradley 1734-IV8/C POINT I/O Digital DC Sourcing Input Module
• 1 x Factory product identification label
• 1 x Original hardware assembly

Additional components such as terminal bases, POINT I/O adapters, mounting accessories, and network interface modules depend on the installed system configuration.

Field Installation Guidelines

Module Mounting

• Install the module on a compatible POINT I/O terminal base assembly.
• Verify POINTBus power availability before module operation.
• Confirm module position and addressing within the I/O adapter configuration.

Field Wiring

• Verify 24 VDC input polarity before connecting field devices.
• Separate signal wiring from high-voltage power conductors.
• Use appropriate grounding practices for control cabinet installations.

System Configuration

• Confirm controller communication settings before commissioning.
• Verify input channel mapping in the PLC configuration software.
• Inspect terminal connections before applying field power.

Frequently Asked Questions

• What is the function of the 1734-IV8/C?

  The 1734-IV8/C is an eight-channel digital DC sourcing input module used to collect 24 VDC field signals in Allen-Bradley POINT I/O systems.

• How many input channels are available?

  The module provides eight independent digital input channels for connection to compatible 24 VDC field devices.

• What input voltage does the module support?

  The module is designed for 24 VDC digital input applications according to the provided technical specifications.

• What is the POINTBus current requirement?

  The module requires 75 mA POINTBus current from the POINT I/O backplane communication system.

• What type of input signals can be connected?

  The module accepts discrete DC source input signals from compatible industrial field devices.

• Does the module provide analog measurement capability?

  No. The 1734-IV8/C is a digital input module and does not measure analog voltage or current values.

• What installation factors affect input signal quality?

  Proper wiring separation, grounding, and correct device polarity help reduce electrical interference and signal errors.

• Can the module be installed without a POINTBus adapter?

  The module requires a compatible POINT I/O assembly and communication adapter for integration into the control system.