IS230SCISH2A - Contact Input Assembly Board

IS230SCISH2A - Contact Input Assembly Board IS230SCISH2A - Contact Input Assembly Board

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Part No.: IS230SCISH2A
Manufacturer: General Electric
Series: Mark VIe
Function: Contact Input Assembly
Repair: 3-5 Days
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

IS230SCISH2A is a Contact Input Assembly developed by GE. It is a part of mark VIe control system. The Mark VIe control system employs a specialized approach to enhance its functionality. It employs dedicated processors within each contact input board, and their primary purpose is to apply a precise 1 ms time stamp to all contact inputs. This feature serves a dual purpose, eliminating both the upfront cost and the ongoing maintenance requirements associated with a separate Sequence of Events (SOE) system.


  • This means that the Mark VIe control system can not only accurately capture and record all contact inputs but also provides a highly detailed and synchronized timeline of events. By time-stamping each input with a resolution of 1 ms, it ensures that the order and timing of events are meticulously recorded and can be readily analyzed as needed.
  • Furthermore, this integrated approach offers significant advantages over traditional SOE systems, such as cost savings by eliminating the need for a separate system, streamlined maintenance procedures, and a simplified overall control and monitoring architecture. It ultimately contributes to the efficiency, reliability, and cost-effectiveness of the Mark VIe control system in various applications, particularly in industries where precise event tracking is critical for operational safety and performance analysis.

Product Attributes

  • The board will have multiple isolated input channels, each capable of handling a single digital signal. Isolation ensures that electrical noise or voltage fluctuations on one channel do not affect the others.
  • Provide protection against overvoltage, transients, and electrical noise to safeguard the input circuitry and connected devices. This protection can include components like transient voltage suppressors, filters, and optocouplers.
  • Signal conditioning capabilities to optimize the input signals for accurate processing. This can involve amplification, filtering, or conversion of the signals to a suitable voltage or current range.
  • Each input channel will have dedicated terminal connections or connectors to facilitate easy and secure wiring of sensors or devices. These terminals or connectors may be designed to accept various types of input signals, such as dry contacts or voltage signals.
  • It offer various mounting options, such as DIN rail mounting or panel mounting, to suit different installation requirements.

System I/O Networks

  • The I/O networks utilized in the Mark VIe control system adhere to the IEEE 802.3 standard, specifically operating as 100 Mbit full-duplex Ethernet networks. Within the Mark VIe framework, these networks are commonly referred to as IONet, representing a crucial component of the control architecture. Notably, all communication traffic within these IONets is deterministic, achieved through the use of UDP/IP (User Datagram Protocol/Internet Protocol) packets. TCP/IP (Transmission Control Protocol/Internet Protocol) is intentionally omitted from this setup.
  • The Mark VIe system efficiently organizes these networks into distinct entities, each having its own unique identity as an independent IP subnet. These networks are color-coded for easy reference, with designations like red, blue, and black. One of the significant advantages of this segmentation is that it minimizes the chances of network collisions, which can be problematic in non-switched Ethernet environments. The inclusion of fully switched full-duplex architecture ensures that data transmission is both efficient and collision-free.
  • These switches incorporated into the IONet system offer several key functionalities. First and foremost, they provide data buffering capabilities, which can be especially critical during the critical input scan process. Additionally, they implement robust flow control mechanisms, enabling precise management of data traffic, reducing the likelihood of congestion, and ensuring optimal data transmission.
  • One of the cornerstone technologies integrated into this IONet setup is the IEEE 1588 standard for precision clock synchronization protocol. This standard plays a pivotal role in achieving synchronization across the entire Mark VIe system. It enables precise synchronization of frame and time across controllers and I/O modules. This synchronization not only ensures that all elements of the control system are operating in concert but also contributes significantly to the high level of traffic flow control achieved on these networks.

World of Controls has the most comprehensive collection of GE Mark VIe components. Please contact WOC as soon as possible if you require any extra information.


Frequently Asked Questions


What is IS230SCISH2A?
It is a Contact Input Assembly Module developed by GE

What role do dedicated processors play within the Mark VIe control system?
Dedicated processors are employed within each contact input board of the Mark VIe control system. Their primary purpose is to precisely time stamp all contact inputs.

Why is time stamping contact inputs important, and what resolution does the Mark VIe system achieve?
Time stamping is crucial for accurate event tracking and analysis. The Mark VIe system achieves a remarkable 1 ms time stamp resolution, ensuring precise timing of events.

What advantages does the 1 ms time stamping feature offer?
The 1 ms time stamping feature in the Mark VIe control system provides a highly detailed and synchronized timeline of events. It facilitates accurate recording of the order and timing of events, making analysis easier and more reliable.