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Product Brief Description
The GE 369B1873G5001 BDI10 Digital Input Base is a component of the GE Mark VIe control system. Unlike the TMR (Triple Modular Redundant) version, this terminal board is designed for simplex or dual-redundant systems. It provides 16 channels for monitoring on/off signals. Its primary function is to serve as a connection point for discrete input signals, providing a reliable interface between field wiring and the control system.
Detailed Product Description
The 369B1873G5001 is a critical part of a digital input configuration in a Mark VIe system. While TMR boards interface with three I/O packs, this digital input base is typically designed to interface with one or two I/O packs. The field wiring from a single device is connected directly to this board. This allows the system’s controller to receive the input signal from the I/O pack.
The redundancy for this board is handled at the I/O pack level, where a dual-redundant system would use two I/O packs for a single terminal board. In a dual-redundant configuration, the control system’s logic would typically use a simpler voting or comparison scheme to determine the correct state of the input. This architecture is suitable for applications where high reliability is needed, but the extreme fault tolerance of a TMR system is not required.
Key Features and Specifications
- Part Number: 369B1873G5001
- Model Name: BDI10
- Module Type: Digital Input Base (Simplex or Dual-Redundant)
- Channels: 16 digital input channels
- Redundancy: Designed for a simplex or dual-redundant configuration, supporting one or two I/O packs.
- Input Type: Accepts discrete on/off signals.
- Primary Function: Provides wiring termination and signal distribution for digital input I/O packs.
- Compatibility: Used with specific Mark VIe digital input I/O packs.
Functional Role in a System
In a simplex or dual-redundant Mark VIe system, the 369B1873G5001 acts as the primary hub for input signals. A single sensor in the field is wired to this board. The board then sends the signal(s) to one or two digital input I/O packs, which are connected to the system controller(s). This design ensures that the control system can reliably receive input signals for process monitoring and control.
Common Applications
The use of a digital input base like this is common in applications where a high degree of reliability is important, but a full triple-redundant system is not necessary. These include:
- Balance of Plant (BOP) Systems: Monitoring non-critical components of a power plant, such as pumps, fans, and valves.
- General Process Control: Applications where a single point of failure is undesirable but does not pose a severe safety or financial risk.
- Monitoring and Data Acquisition: Systems focused on collecting data from a large number of sensors for logging and analysis.
