IS230TNRTH1D - RTD Assembly Module

IS230TNRTH1D - RTD Assembly Module IS230TNRTH1D - RTD Assembly Module

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Part Number: IS230TNRTH1D
Manufacturer: General Electric
Series: Mark VIe
Function: RTD Assembly Module
Availability: In Stock
Span: 0.3532 to 4.054 V
A/D converter resolution: 14-bit resolution
Country of Manufacture: United States (USA)

Functional Description

IS230TNRTH1D is a RTD Assembly Module manufactured and designed by General Electric. It is a part of the Mark VIe Control System. The module is specifically designed to handle RTD measurements within the control system. RTDs are temperature sensors that utilize the principle of electrical resistance to measure temperature accurately. The module enables precise temperature monitoring and control by interfacing with one PRTD pack. The PRTDH1B pack is responsible for conditioning and digitizing the RTD signals, converting them into a format that can be processed and utilized by the Mark VIe Control System. The combination of the TNRTH1D module and the PRTDH1B pack provides a reliable and accurate means of temperature measurement and control within the system. The module is typically installed at the R-Location.


  • The RTD Assembly Module consists of two main components: the processor board and the acquisition board. The processor board is a common component shared among all Mark VIe distributed I/O packs, providing the necessary processing power and communication capabilities. The acquisition board, on the other hand, is specific to the thermocouple input function, enabling accurate acquisition and conversion of RTD signals.
  • The I/O pack associated with the module is capable of handling up to eight RTD inputs. This means that it can accommodate and process data from up to eight RTD sensors, allowing for comprehensive temperature monitoring within the Mark VIe Control System. Additionally, the I/O pack has the capacity to handle 16 RTD inputs in certain configurations, further expanding the system's capability for temperature measurement.
  • The control mode refers to the number of I/O packs used in a specific signal path within the control system. There are three control modes: simplex, dual, and TMR (Triple Modular Redundant).
  • In the simplex mode, a single I/O pack is utilized, and it may have one or two network connections. This mode is suitable for applications where redundancy is not a critical requirement or where a lower level of fault tolerance is acceptable.
  • The dual mode involves the use of two I/O packs, each with one or two network connections. This configuration provides increased redundancy and fault tolerance compared to simplex mode. The dual mode is often employed in applications where a higher level of reliability is desired.
  • The TMR mode is the most robust and fault-tolerant configuration. It utilizes three I/O packs, each with a single network connection. The redundancy and fault tolerance provided by TMR ensure high system availability and reliability. The TMR mode is typically employed in critical applications where system failure or downtime is unacceptable.
  • By offering different control modes, the Mark VIe Control System can be tailored to meet specific requirements and provide varying levels of redundancy and fault tolerance. The choice of control mode depends on the criticality of the application and the desired level of system reliability.


  • High-speed processor with ample RAM and flash memory: The module incorporates a powerful processor with sufficient memory capacity to handle complex calculations and data processing tasks efficiently.
  • Dual independent 10/100 Ethernet ports: Two Ethernet ports with separate connectors provide reliable and high-speed network connectivity, enabling seamless communication and data transfer between the module and other system components.
  • Hardware watchdog timer and reset circuit: The inclusion of a watchdog timer and reset circuit ensures the module's stability and reliability. These features monitor the system's operation and initiate a reset if any anomalies or malfunctions are detected, ensuring continuous and uninterrupted functionality.
  • Internal I/O pack temperature sensor: The module includes an internal temperature sensor dedicated to monitoring the temperature of the I/O pack. This capability enables the system to monitor and respond to temperature variations, ensuring optimal performance and preventing overheating.
  • Infrared serial communications port: The module is equipped with an infrared serial communications port, allowing for convenient and efficient serial data communication with compatible devices.
  • Status-indication LEDs: Status LEDs provide visual indicators of the module's operational status, making it easier for operators and technicians to monitor the system and identify any potential issues or faults.
  • Electronic ID functionality: The module has its own electronic identification (ID) capability, allowing it to be uniquely identified within the system. Additionally, it can read the IDs of other boards or modules, simplifying system configuration and troubleshooting.
  • Programmable logic support: The module features substantial programmable logic, enabling the customization and optimization of the acquisition board's functionality according to specific application requirements.
  • Input power connector with soft start/current limiter: The module includes an input power connector that incorporates a soft start and current limiting mechanism. This feature ensures a controlled and gradual power-up process, minimizing potential power surges or disruptions.
  • Local power supplies with sequencing and monitoring: The module is equipped with its own local power supplies that support sequencing and monitoring functionalities. This enables efficient and coordinated power distribution and ensures the stable operation of the module and associated components.

WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs contact us.


What is IS230TNRTH1D?
It is a RTD Assembly Module manufactured and designed by General Electric

How many RTD inputs can the I/O pack handle?
The I/O pack associated with the module has the capacity to handle up to eight RTD inputs. It provides the necessary signal conditioning and digitization for accurate temperature measurement within the Mark VIe Control System.

Can the I/O pack handle more than eight RTD inputs?
Yes, the I/O pack is capable of handling up to 16 RTD inputs in certain configurations. This expanded capacity allows for comprehensive temperature monitoring and control within the system.

What are the advantages of using different control modes?
The choice of control mode depends on the specific requirements of the application. Simplex mode is suitable when redundancy is not a primary concern. Dual mode provides increased redundancy for improved reliability. TMR mode offers the highest level of redundancy and fault tolerance, making it ideal for critical applications where system failure or downtime must be avoided.