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Product Brief Description
The GE 369B1871G5002 BAO20 Analog Output Base is a component of the GE Mark VIe control system that provides a physical interface for an I/O pack. The key difference from other analog output bases is its support for HART (Highway Addressable Remote Transducer) protocol. This model, designated as BAO20, provides 8 channels for analog output and can handle both current (mA) and voltage (V) signals, with the added benefit of digital communication over the same analog wiring.
Detailed Product Description
The 369B1871G5002 serves as a base for the analog output I/O pack within the Mark VIe system. It is designed for DIN rail or cabinet mounting and provides a reliable connection between the I/O pack and field devices. The “BAO20” designation refers to the Base Analog Output with HART, 8 channels.
The most significant feature of this base is the integrated HART communication. This allows for digital information to be transmitted simultaneously with the traditional analog signal. This means a single pair of wires can be used for both control (the analog signal) and detailed device diagnostics, calibration, and configuration (the digital signal). This greatly enhances the ability to manage and troubleshoot field instruments without interrupting the analog control loop.
Key Features and Specifications
- Part Number: 369B1871G5002
- Model Name: BAO20 Analog Output Base with HART
- Module Type: Analog Output Base for I/O Pack with HART support
- Channels: 8 channels
- Analog Output Type: Current () and Voltage () with HART
- Primary Function: Provides mounting and wiring termination for an analog output I/O pack, connecting it to field devices and enabling HART communication.
- HART Protocol: Allows for simultaneous digital communication and analog signaling over the same wires.
- Mounting: DIN rail or chassis mount.
- Compatibility: Designed for use with specific Mark VIe analog output I/O packs that support HART.
Functional Role in a System
In a Mark VIe system, the 369B1871G5002 acts as the foundation for an advanced analog output module. The system’s controller sends digital commands to the I/O pack, which is installed on this base. The I/O pack then generates the analog signal to control a field device (e.g., a valve). The BAO20 base’s HART capability allows the I/O pack to also send and receive digital data to and from the smart field device, providing rich diagnostic information back to the control system. This enables predictive maintenance and more efficient asset management.
Common Applications
The BAO20 base is used in industrial applications requiring both robust control and advanced diagnostics from a single point. This includes:
- Smart Instrumentation: Used with HART-compatible instruments, such as smart positioners, transmitters, and flow meters, to access their full diagnostic capabilities.
- Process Optimization: The digital data from HART devices can be used to fine-tune control loops and improve process efficiency.
- Predictive Maintenance: The advanced diagnostics enable the system to monitor the health of field devices and alert operators to potential issues before they cause a failure.
- Upgraded Turbine Control Systems: Used in situations where older turbine controls are being upgraded to the Mark VIe platform to leverage modern HART-enabled field devices.
