2/99 1-3 U3-1021
Westinghouse Proprietary Class 2C
1-1.2. Link Controller Overview
The Link Controller (LC) module provides the Ovation Controller with a serial data
communications link to a third-party device or system. This communication is done
via a serial RS-232, RS-422, or RS-485 data link.
Two serial ports are provided:
• The Applications port provides an interface to a third-party device or system.
• The Programming port provides an interface to an IBM-compatible personal
computer’s COM1 or COM2 serial port (see
Section 2).
The LC processor is similar to an IBM-compatible personal computer and uses a
modified IBM-PC Basic Input/Output System (BIOS) and the DOS operating
system. Because the LC’s architecture and operating system are compatible with an
IBM-compatible personal computer, the LC can execute programs written using
commercially available compilers.
Due to its flexible and open design, the LC can be used for various applications:
• The LC can provide online plant performance calculations.
• Programs designed to execute in an IBM-PC environment can communicate
with the Controller and the Ovation system using the LC.
• The LC is applicable for use in CE Mark-certified systems.
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