Configured for high-precision temperature sensing in Mark VI control system networks, the GE IS200SRTDH2ACB (IS200SRTDH2 RTD Input Terminal Board) provides direct physical signal termination for resistance temperature detector inputs. This hardware component facilitates the connection of field-side temperature sensors to the I/O pack, converting raw resistive measurements into digital data streams for processor execution.

Suffix Breakdown & Model Matrix

The IS200SRTDH2ACB nomenclature identifies the specific hardware iteration of the Mark VI series. The "IS200" prefix designates the GE Mark VI component category, while "SRTD" identifies the terminal board as a specialized RTD input variant. The suffix "ACB" denotes the version and board assembly revision, representing the physical layout and trace topology specific to this model.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The board ensures deterministic connectivity within the GE Mark VI control fabric by maintaining low-impedance paths between the terminal interface and the I/O pack backplane. Signal integrity is maintained through optimized PCB trace routing, which minimizes cross-talk between high-density RTD channels. Firmware compatibility must be verified with the host controller to ensure that the sampling frequency and cold junction compensation logic (if applicable to specific RTD configurations) are properly mapped within the processor's scan cycle.

Frequently Asked Questions

Q: Does this board support 3-wire and 4-wire RTD configurations?

A: Yes, the board is designed to interface with standard RTD wiring configurations. Users must verify the specific jumper or software settings within the control application to match the physical wiring setup to ensure bridge completion and resistance measurement accuracy.

Q: Is this board susceptible to signal noise from nearby high-voltage lines?

A: As a sensitive analog interface, the board requires strict adherence to signal segregation. Field wiring must be shielded and grounded at a single point to prevent ground loops and common-mode noise, which could otherwise introduce fluctuations in the measured resistance value.

Field Installation Guidelines

• Ensure the control cabinet power is completely disconnected before seating the terminal board on its mounting standoff.
• Align the board to ensure correct connector mating with the backplane; verify that no pins are deformed during insertion.
• Maintain a minimum distance of 15 cm from high-frequency switching or power supply cabling to avoid induced noise on the low-level RTD signal lines.
• Secure all terminal screws to the specified torque rating to prevent intermittent high-resistance connections caused by thermal expansion or vibration.
• Perform a channel verification test by simulating a known resistance value at the field terminal block to calibrate the signal path before connecting live process sensors.