General Electric IS230STCIH6A Discrete Input Module

GE IS230STCIH6A Discrete Input Module

Configured for contact‑input acquisition in Mark VIe control systems, the GE IS230STCIH6A (IS230STCIH6A discrete input module) provides direct electrical termination and excitation monitoring for 24 contact channels using the STCI terminal board and PDIA I/O pack.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

As part of GE’s Mark VIe architecture, the IS230STCIH6A aligns with deterministic I/O acquisition cycles governed by the controller’s scheduling window. The PDIA I/O pack performs excitation monitoring, fault detection, and contact‑state sampling at fixed intervals. Backplane bus communication velocity remains consistent across simplex installations, and firmware flash compatibility resides entirely in the I/O pack. I/O density scaling is achieved through the STCI terminal board, which provides 52 physical terminals for wiring while maintaining 24 logical contact channels.

Frequently Asked Questions

Q: Can the IS230STCIH6A be hot‑swapped? A: No. The module must be removed only with cabinet power isolated to avoid unintended contact‑state transitions.

Q: What faults can the module detect? A: Loss of communication with the I/O pack, loss of excitation voltage, and non‑responding contact inputs during test mode.

Q: Does the module support redundant configurations? A: The IS230STCIH6A is designed for simplex operation. Redundancy is handled at the controller and network level.

Field Installation Guidelines

• Maintain proper polarity and wiring discipline on all contact inputs.
• Terminate shields to chassis ground to minimize surge and high‑frequency interference.
• Ensure DIN‑rail mounting provides full mechanical engagement before energizing the system.
• Keep contact wiring isolated from high‑energy conductors to reduce induced noise.
• Verify excitation voltage presence during commissioning to avoid false contact‑state readings.
• Inspect terminal screws for secure engagement to prevent intermittent input behavior.