الوصف
The GE DS3815PLNH is a CSF Controller Card for the GE Speedtronic Mark IV turbine control system. More specifically, it’s a MicroVax Network Controller Card that is part of the HLNB system. Its primary function is to enable network communication for the Mark IV system.
Function and Purpose
The DS3815PLNH serves as a network interface card (NIC), allowing the Mark IV system to communicate over protocols like Ethernet or DECnet. This connectivity is crucial for a control system, as it allows for the transfer of data between the turbine control system and other plant-wide systems, such as a Distributed Control System (DCS) or a data historian. It provides the necessary hardware and protocols for the Mark IV to send operational data, alarms, and status information to a central control room.
The “HLNB” designation stands for MicroVax Network Controller Card, and the card was designed to be compatible with MicroVAX computers from Digital Equipment Corporation (DEC). These computers were often used as the operator interface or as data acquisition servers for the Mark IV. The card provided the link between the turbine’s control logic and the operator’s display.
Related Components
As a network controller card, the DS3815PLNH works in conjunction with other components of the Mark IV system:
- Processor Cards: The main CPU of the system, such as the DS3800HCDA, sends and receives data through the DS3815PLNH to external devices.
- Backplane: The card plugs into the system’s backplane (e.g., the DS3800XCIB), which provides it with power and the electrical pathways for communication.
- Operator Interface: The card connects the Mark IV to the operator’s control station, typically a MicroVAX computer, enabling the human-machine interface (HMI).