Allen-Bradley 1734-8CFG POINT I/O DC Configurable Module Overview

Product Overview

The Allen-Bradley 1734-8CFG is a POINT I/O DC Configurable I/O Module from Rockwell Automation. It belongs to the Bulletin 1734 series and provides 8 input/output points that self-configure as inputs or outputs. This module is designed for flexible automation tasks where space and adaptability are critical. It operates with an input voltage minimum of 11 Volts DC and draws an input current of 2-5 milliamps. The open enclosure allows for integration into various industrial environments.

Technical Specifications Breakdown

Key parameters for the 1734-8CFG are listed below for quick reference:

Industry Applications

This module is well-suited for discrete manufacturing lines where mixed input and output signals are needed. For example, in packaging machinery, the 1734-8CFG can handle both sensor inputs and actuator outputs on a single module, reducing wiring complexity. In material handling systems, it enables flexible control of conveyors and diverters. Its configurable nature allows engineers to adapt to changing production requirements without replacing hardware, offering a cost-effective solution for evolving automation needs.

Installation & Setup Guidance

Mount the 1734-8CFG on a DIN rail using the provided latch. Ensure the terminal base unit (compatible with 1734-TOPS, 1734-TOP, 1734-TBS, or 1734-TB) is correctly keyed before inserting the module. The module supports hot-swapping under POINTBus backplane conditions. Connect all I/O devices to a Protected Extra Low Voltage (PELV) or Safety Extra Low Voltage (SELV) power source. Set each input independently in millisecond intervals; the default is 1000 milliseconds. Verify the key switch position is set to 1.

Maintenance & Reliability

Inspect the module periodically for dust accumulation on the open enclosure. Operating temperature range is -20 to 55 Celsius, so ensure adequate ventilation in high-heat environments. The module includes reverse polarity protection to prevent damage from incorrect wiring. No internal adjustments are required; routine checks of connections and environmental conditions suffice.

Compatibility & Integration

The 1734-8CFG integrates with the POINT I/O backplane using POINTBus communication. It supports auto-baud, auto-address, and power removal/insertion under insertion rules. Compatible wiring base units include 1734-TOPS, 1734-TOP, 1734-TBS, and 1734-TB. All connected I/Os must use PELV or SELV power sources. The module is part of the Bulletin 1734 Digital Module series.

Selection Guide & Purchasing Advice

When selecting the 1734-8CFG, verify that your system requires 8 configurable DC I/O points with 11 VDC minimum input voltage. For lifecycle status and availability, contact AutoDCSTech before ordering. AutoDCSTech offers genuine Allen-Bradley parts with fast shipping.

Troubleshooting & Common Issues

If the module does not power on, check the POINTBus connection and ensure the terminal base is properly keyed. For input points not responding, verify the input voltage meets the 11 VDC minimum and the input current is within 2-5 mA. For output issues, confirm the load is within the on-state output voltage range (10 to 28.8 VDC). If the module fails to communicate, inspect the backplane for auto-baud or address conflicts. Always power down before removing or inserting the module.