IS200STCIS2A - Contact Input Terminal Board

SPECIFICATIONS

Part No.: IS200STCIS2A
Manufacturer: General Electric
Product Type: Simplex Contact Input Terminal Board
Technology Surface-mount
Size: 15.9 cm high x 10.2 cm wide
Input: filter Hardware filter, 4 ms
Number of channels: 24
Temperature: -30 to + 65oC
Country of Manufacture: United States (USA)
Series: Mark VIeS

Functional Description

IS200STCIS2A is a Simplex Contact Input Terminal Board developed by GE. It is a part of Mark VIeS control system. This compact and space-efficient terminal board is designed for DIN-rail mounting and integrates seamlessly with Mark VIeS systems, making it an ideal choice for control and monitoring applications. The board supports up to 24 contact inputs and operates with nominal excitation voltages of 24 V, 48 V, and 125 V DC sourced externally. Equipped with advanced noise suppression, it protects against surges and high-frequency interference, ensuring reliable operation in demanding industrial environments.

Features

• Contact Input Detection
  
  • Threshold Voltage: The contact detection threshold is set at 50 percent of the excitation voltage, allowing precise identification of contact closures or state changes.
  • Contact Sensing Circuits: Designed with robust sensing circuits that effectively interpret contact input signals.
• Input Current Management
  
  • First 21 Circuits: Input currents are restricted to a maximum of 2.5 mA for safe operation.
  • Circuits 22 to 24: These circuits allow higher input currents, capped at 10 mA, providing flexibility for various input requirements.
  • Built-in Overcurrent Protection: The board includes a 24 V DC power supply with resettable polymer positive temperature coefficient (PTC) fuses. These fuses limit the current to 0.5 A, offering protection against overcurrent scenarios and enabling automatic reset.
• Noise Suppression and Surge Protection: Features dedicated filters at each input point to reduce high-frequency noise and suppress surges. Ensures stable and interference-free signal transmission even in harsh conditions.
• Signal Processing and Isolation: The I/O processor receives discrete voltage signals generated by contact inputs. These signals are electrically isolated using optical isolators, converted to digital format, and sent to the controller for further processing. This ensures secure and accurate signal relay within the control system.
• Connectivity: The board includes an RS-232 37-pin female port located at the top center edge for streamlined communication and connectivity.

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Frequently Asked Questions

What is IS200STCIS2A?
It is a Simplex Contact Input Terminal Board developed by GE.

Does the module have an ID device on its connector?
Yes, the terminal board connector on the board features an ID device. This device contains essential information, such as the board serial number, board type, and revision number, coded into a read-only chip.

What happens if there is a mismatch in the connector ID?
If the I/O processor encounters a mismatch in the connector ID, indicating a hardware incompatibility, it creates a hardware incompatibility fault. This fault alerts the system to a potential issue with the connected board, ensuring compatibility and system integrity.

Why are these monitoring functions important?
These monitoring functions are crucial for ensuring the reliability and safety within the broader control and monitoring system. They help detect and respond to voltage issues, contact input failures, and hardware compatibility problems, contributing to the overall performance and uptime of the system.

How frequently does the I/O processor perform these monitoring tasks?
The I/O processor continuously monitors these functions to provide real-time feedback and rapid response in case of any deviations or issues, ensuring the system's consistent operation.