IC694MDL732 Emerson RX3i PLC Discrete Sourcing Output Module

Product Description

The IC694MDL732 is a 12/24 VDC positive logic (sourcing) discrete output module engineered for the GE PACSystems RX3i platform. This module features 8 high-performance output points designed to drive a variety of industrial DC field devices, including solenoids, motor starters, and pilot lights. By providing a sourcing configuration, the IC694MDL732 switches the positive side of the DC supply to the load, which is a standard requirement for many safety-conscious industrial control architectures.

Each output on the IC694MDL732 is rated for a continuous current of 0.5 Amps at up to 60 °C, with a robust inrush capacity of 4.78 Amps for 10 milliseconds to handle inductive startup spikes. To ensure maximum system uptime and hardware protection, the module provides 1500 VAC galvanic isolation between the field-side electronics and the internal backplane logic. The module is also equipped with individual LED indicators on the front faceplate, allowing maintenance personnel to verify the logic state of each output at a glance, significantly reducing troubleshooting time during system commissioning or site maintenance.

Technical Specifications

• Model Number: IC694MDL732

• Manufacturer: GE Fanuc (Emerson Automation)

• Control Series: PACSystems RX3i

• Output Type: Discrete DC Sourcing (Positive Logic)

• Number of Points: 8 points (Single group)

• Rated Voltage: 12 to 24 VDC

• Operating Voltage Range: 10.2 to 30 VDC

• Output Current: 0.5 Amps maximum per point

• Inrush Current: 4.78 Amps for 10 ms

• Response Time: 2 ms maximum (On/Off)

• Isolation Threshold: 250 VAC continuous; 1500 VAC for 1 minute

• Internal Power Draw: 50 mA @ 5 VDC (from backplane)

• Internal Protection: No internal fuses; external fusing is recommended

• Operating Temperature: -20 °C to +60 °C (-4 °F to 140 °F)

• Weight: 0.35 kg (Net module weight)

• Compliance: IEC 61326-1, industrial EMC standards

Application & Load Management

The IC694MDL732 is commonly utilized in localized control panels for turbine auxiliary systems and material handling conveyors. Because this module does not contain internal fuses, it is standard engineering practice to install external fast-acting fuses or current-limiting devices on the field-side power supply to protect the output transistors from short circuits. Its low power consumption from the RX3i backplane makes it an efficient choice for racks already heavily populated with high-speed processors or communication modules.

Frequently Asked Questions

Can the IC694MDL732 be used in a Series 90-30 rack?

No. While it physically resembles 90-30 modules, the IC694MDL732 is designed for the RX3i high-speed serial backplane architecture. It must be installed in an IC695 Universal Backplane or an IC694 Expansion Backplane.

What is the difference between Sourcing and Sinking for this module?

The IC694MDL732 is a sourcing module, meaning it provides the positive voltage to the load. If your field device is wired with a common positive and requires the PLC to provide the ground (common negative), you would need a sinking module like the IC694MDL740.