Overview
The GE IS200TRTDH1D, also cataloged as the IS200TRTD RTD Input Terminal Board, operates as a dedicated hardware component for receiving 16 three-wire RTD signals and routing temperature data to PRTD I/O packs within the GE Mark VIe control system. The board uses two barrier-type terminal blocks, integrated noise suppression circuitry, and two DC-type connectors. It supports simplex applications and converts field RTD connections into conditioned input signals for subsequent digital temperature processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TRTDH1D |
| Base Model | IS200TRTD |
| Brand | General Electric (GE) |
| Series | Mark VIe |
| Product Type | RTD Input Terminal Board |
| Origin | United States (USA) |
| RTD Inputs | 16 three-wire RTD inputs |
| Application Configuration | Simplex only |
| Compatible I/O Pack | PRTD I/O pack |
| Number of PRTD Packs | Two PRTD packs |
| Terminal Blocks | Two barrier-type terminal blocks |
| Terminals per Block | 24 terminals |
| Maximum Wire Size | Up to #12 AWG |
| Field Signal Protection | Surge and high-frequency noise suppression |
| Shield Grounding | Shield terminal strip connected to chassis ground |
| Connector Configuration | Two DC-type connectors |
| Scan Function | PRTD and normal scan connections |
| Signal Processing | I/O processors convert RTD inputs to digital temperature values |
| Input Wiring | Direct field wiring to terminal blocks |
| Recommended Cable | Double-shielded cable |
GE Mark VIe I/O Density and System Communication
The IS200TRTDH1D supports distributed temperature input integration through the Mark VIe I/O architecture. Two PRTD I/O packs connect to the terminal board and provide access to a total of 16 RTD channels.
The terminal board performs the field connection and signal conditioning functions, while the associated I/O packs and processors handle temperature data conversion and controller communication. Consequently, the board separates field wiring from higher-level control processing.
Integrated surge and high-frequency noise suppression circuitry operates at the input side. In addition, the chassis-grounded shield terminal strips provide a defined termination point for cable shielding. This arrangement supports controlled signal routing and reduces interference introduced through field wiring.
Frequently Asked Questions
Q: How many RTD inputs does the IS200TRTDH1D support?
A: The IS200TRTDH1D accepts 16 three-wire RTD inputs through two barrier-type terminal blocks.
Q: Can the IS200TRTDH1D be used in redundant TMR applications?
A: No. The IS200TRTDH1D is specified as a simplex terminal board and supports simplex applications with PRTD I/O packs.
Q: How should RTD cable shields be terminated?
A: Double-shielded cable should be used, and all cable shields should terminate at the shield terminal strip connected to chassis ground. The end shields are located at the end device.
Field Installation Guidelines
- Connect the 16 three-wire RTDs directly to the two barrier-type terminal blocks.
- Secure each terminal block using its specified mounting screws before energizing the system.
- Use field conductors compatible with terminals accepting wire sizes up to #12 AWG.
- Use double-shielded cable for RTD field connections.
- Terminate all cable shields at the dedicated shield terminal strip.
- Maintain separation between RTD signal wiring and high-power or switching conductors.
- Connect the shield terminal strip to the specified chassis grounding point.
- Verify terminal identification and RTD channel assignments before connecting the PRTD I/O packs.
- Confirm that both PRTD packs are correctly seated before system commissioning.
- Inspect field wiring for loose connections, damaged insulation, or incorrect shield termination before applying power.
