Configured for contact‑signal acquisition in Mark VIe I/O networks, the GE IS200STCIH6ADD (IS200STCIH6ADD contact input terminal board) provides 24‑channel dry‑contact interfacing with nominal 24, 48, or 125 V dc excitation. The board supports DIN‑rail or flat‑plate mounting and includes suppression circuitry for surge and high‑frequency noise.
Hardware Specifications
Parameter
Specification
Model
IS200STCIH6ADD
Brand
GE
Origin
United States
Weight
Not specified
Dimensions
15.9 cm × 10.2 cm
Operating Temp
-30 to 65 deg C
Power Consumption
Not specified
Core Performance Indicators
24 contact inputs; 24/48/125 V dc excitation; noise‑suppression circuitry; DIN‑rail or flat mounting; surface‑mount construction; shield‑termination bracket; 18 AWG wiring compatibility
Profinet / EtherNet/IP Deterministic Networks
Within Mark VIe architectures, the STCI board aligns with deterministic I/O‑pack timing used for synchronous contact‑state interrogation. Although the board itself is passive, its suppression components maintain stable propagation intervals under high‑frequency interference. I/O density scaling is achieved through fixed 24‑channel allocation, while firmware flash compatibility resides entirely at the I/O processor level; STCI hardware characteristics remain fixed across all variants.
Frequently Asked Questions
Q: Can the IS200STCIH6ADD be hot‑swapped? A: No. The board must be installed or removed only when the associated cabinet segment is de‑energized to avoid transient excitation‑voltage loading.
Q: How does the I/O processor validate contact inputs? A: It monitors excitation voltage, interrogates the board’s ID device, and performs diagnostic forcing of all inputs to the open state. Any input failing this test is forced to failsafe (open) and flagged as a fault.
Q: Are there wiring restrictions for shielded cables? A: Yes. Shields must terminate at a dedicated bracket to prevent ground‑loop formation and reduce EMI coupling.
Field Installation Guidelines
Mount the board on a DIN‑rail carrier or bolt‑on sheet‑metal assembly with the plastic insulator installed.
Use 18 AWG conductors for contact wiring to ensure proper terminal‑block engagement.
Terminate cable shields at the designated bracket to maintain isolation from signal conductors.
Maintain separation between contact wiring and high‑energy conductors to reduce induced noise.
Verify correct seating of connectors before energizing the excitation system.
