RSTi Digital Input Module GE Fanuc ST-2328

Product Overview

The ST-2328 (ST-2328) functions as a high-density digital input interface for the GE Fanuc (Emerson) RSTi distributed I/O family. This module provides 8 independent 24 VDC sinking input channels in a compact "slice" form factor. It acts as the primary sensory interface for PLC systems, capturing discrete signals from proximity switches, pushbuttons, and limit switches. Designed for high-speed automated production lines and modular machine builds, the ST-2328 optimizes cabinet space while maintaining deterministic signal processing. We supply this module as 100% Brand New, ensuring original factory performance and full compatibility with your existing RSTi network adapters.

Technical Specifications

The ST-2328 utilizes optocoupler isolation to protect the internal system bus from field-side electrical disturbances.

Engineering Advantages

• Modular Space Efficiency: The ultra-slim 12 mm profile allows engineers to scale input capacity without expanding enclosure dimensions. This modularity supports decentralized control architectures where space is at a premium.

• Reliable Sinking Logic: The sinking input design allows the module to receive signals from PNP-type sourcing sensors. This configuration remains the industry standard for many global automation platforms, ensuring seamless integration with common field devices.

• Vibration-Resistant Connectivity: The ST-2328 employs a spring-clamp terminal system. This design maintains a constant pressure on the wire, preventing signal loss or intermittent connections in high-vibration environments like stamping presses or moving conveyor frames.

• Rapid Status Monitoring: Dedicated LEDs for each channel provide immediate visual confirmation of the input signal state. This feature allows maintenance teams to verify sensor operation at the module level, significantly reducing troubleshooting time during machine commissioning or downtime.

FAQs

• Is this module compatible with NPN or PNP sensors?

  The ST-2328 is a Sinking input module. It typically pairs with PNP (Sourcing) sensors that switch the positive voltage to the input pin.

• Does the module require an external power supply?

  The ST-2328 draws logic power from the RSTi backplane bus. However, you must provide 24 VDC field power to the sensors. This power usually flows through the network adapter or a power potential distributor (ST-7xxx) slice.

• Can I swap this module without tools?

  Yes. The RSTi series uses a lever-action locking mechanism for DIN-rail mounting and a push-in terminal system. You can remove the electronic slice from the terminal base without rewiring the field cables.

• What is the response time for signal detection?

  The module features integrated hardware filtering to prevent contact bounce. The typical input filter time is less than 3 ms, providing high-speed responsiveness for rapid machine cycles.