Allen-Bradley 1734-8CFGDLX POINT I/O Configurable Digital Module

Product Overview

The Allen-Bradley 1734-8CFGDLX is a POINT I/O digital module designed for flexible, cost-efficient control distribution. Part of the Rockwell Automation 1734 series, this module features 8 self-configuring points that can operate as either DC inputs or outputs. Its DeviceLogix Smart Component Technology embeds logic-solving capability directly into the I/O module, reducing reliance on a central controller and lowering overall system cost. For engineers seeking to optimize distributed control architectures, this module delivers higher performance by processing inputs and controlling outputs locally.

Technical Specifications Breakdown

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

Industry Applications

For example, in a packaging facility, the 1734-8CFGDLX can be set up as inputs for sensors and outputs for actuators, adapting to product changeovers without rewiring. In material handling systems, its DeviceLogix capability allows standalone decision-making, such as diverting packages based on sensor readings, which cuts controller processing load and speeds up throughput. The cost-benefit is clear: fewer central PLC racks and lower wiring expenses.

Installation & Setup Guidance

Mount the module on a DIN rail in an open enclosure to ensure adequate airflow. Connect the 1734-8CFGDLX to a compatible terminal base unit like the 1734-TOP or 1734-TB before or after base mounting. The module supports removal and insertion under power via the POINTBus backplane with auto-address and auto-baud functions. Configure each point as input or output using the DeviceLogix programming environment. Set input filter times in millisecond intervals; the default is 1000 milliseconds. Verify the input voltage meets the minimum 11 Volts DC requirement to ensure reliable operation.

Maintenance & Reliability

Given the open enclosure rating, install the module in a clean, dry environment within the -20 to 55 Celsius operating range. Periodically inspect connections and the DIN rail mounting for secure fit. The module's power dissipation is 2.6 W maximum, and thermal dissipation is 8.9 BTU/hour at 28.8 Volts DC, so ensure adequate ventilation to prevent overheating. No internal user-serviceable parts exist; contact AutoDCSTech for replacement if issues arise.

Compatibility & Integration

The 1734-8CFGDLX integrates with ControlNet, DeviceNet, or EtherNet/IP networks using ODVA pre-defined produce/consume assemblies. It supports peer-to-peer communication with the Auto Produce parameter, enabling I/O data generation without a master controller. This module works with terminal bases 1734-TOP, 1734-TOPS, 1734-TB, and 1734-TBS. Its POINTBus current draw is 100 mA at 5 Volts DC, with on-state input current between 2.0 mA and 5.0 mA.

Selection Guide & Purchasing Advice

When selecting this module, evaluate your I/O count and need for distributed logic. For 8-point configurable I/O with DeviceLogix, the 1734-8CFGDLX reduces central controller costs. AutoDCSTech stocks this module and can advise on lifecycle status. Please verify current availability before ordering.

Troubleshooting & Common Issues

If inputs fail to register, check that the supply voltage meets the minimum 11 Volts DC and that input current is within 2-5 milliamps. For output issues, verify the DeviceLogix program logic and that the module is properly seated on the DIN rail. If the module does not communicate, confirm network settings and that the POINTBus backplane connection is secure. Refer to the user manual for detailed diagnostics.