The DIAGC Display is driven by the data file DIAGC.DAT in the PROM subdirectory of the UNITn directory for the given unit. This data file contains all of the screen definitions and the menu structure. For each display, there are text definitions of each line. Included in these text definitions is the scaling information on how to display the fixed point integers reported back by the I/O cards as floating point displays. Instructions on how these are formatted are included in the comments in the data file. This file does not need to be edited on-site as the data is PROM firmware dependent and not site-dependent. When new PROMs are installed in the unit, ones that make changes to the data supplied for the Diagnostic Data Display, a new DIAGC.DAT file may also be required.
4-4. EEPROM DOWNLOADER
Control Sequence Programs, Control Constants, Totalizer Data, I/O Configuration information, and point lists for various displays, loggers, and options are some of the critical data stored on EEPROM chips in the Mark V Control Panel. Each processor has one EEPROM chip, located on the DCC card, which holds the information needed by that processor. When the processor is started, information from the EEPROM is copied to RAM, where it used to control and monitor the turbine (see Figure 4-26).
The EEPROM Downloader program, run from the Main Menu on the <I>, is used to transfer data to and from the
Mark V’s EEPROM chip(s). The critical data is stored on the EEPROM chip in hexadecimal format. With the exception of the I/O configuration information, the data must be compiled to convert from ASCII text to hexadecimal format.
Modifications to the Control Sequence Program file(s) must be compiled using the Control Sequence Compiler, while modifications to all the other EEPROM information files are compiled using the Table Compiler TABLE_C. This section describes the EEPROM information file transfer process.
NOTE
For modifications downloaded with the EEPROM Downloader to take effect, the processor(s) must be restarted in order for the new information on the EEPROM chip to be transferred to RAM for use by the processor in controlling and/or monitoring the unit.
Upon accessing the EEPROM Downloader from the Main Menu, the user is out of the <I> menu system. EEPROM is an executable file run as an IDOS task.
When running EEPROM Downloader, the <I> is not controlling the turbine. However, the turbine continues to operate at the last setpoint and all Mark V protective functions are operational.
4-4.1. Executing EEPROM Downloader
The EEPROM Downloader can be executed from a menu pick of the Main Menu or from the DOS prompt using the
command: EEPROM Downloader. Once executed, a Help screen is available at any time by typing HELP at the
EEPROM Downloader> prompt. To return to the Main Display from the EEPROM Downloader program, after the prompt
EEPROM Downloader>, type EXIT
Once in EEPROM, use the format specified in the Help screen (Figure 4-25) to perform one of the options of EEPROM . Enter the two character unit name of the Control Panel using EEPROM. This information is in the CONFIG.DAT file on F: and also in the EEPROM program by typing the wildcard character " ? " for the unit name and processor name in a command. For example, to obtain a list of the valid unit names for the <I>, type the following command after the prompt EEPROM Downloader> DIR ?? ?
--- Mark V EEPROM downloader, Version 2.2
EEPROM <option> <unit_name> <proc > <sections> Where:
<option> is one of { UP | DOWN | DIR | CHECK | NOCHECK } <unit_name> is the name of the desired unit.
<proc> is the processor to talk to, one of { R | S | T | C | D } <sections> is ALL or a list of EEPROM partitions, partitions are:
FORMAT - Formats (initializes) EEPROM. [Not in USER category] SEQ- Contains sequencing.
CONST - Contains control constants. IOCFG - Contains IO configuration. UBBL - Contains User BBL library.
HIST - Contains point list for history log. EPA - Contains point list for EPA log.
MAOUT - Contains point list for 4-20 Ma outputs. EVENT - Contains point list for events.
CHNG - Contains point list for change detection.
BOI - Contains point list for backup operator display. TOTT - Contains point list for totalized data.
TOTD - Contains totalized data.[Not in USER category] CBLR - Contains point list for cable remote.
---
Figure 4-25 . HELP Screen
After obtaining the unit name(s), information can be transferred between <I> and the unit Control Panels. For example, to replace the EEPROM chip in <C> of the Control Panel of Unit Name " T1 ", type the following command at the prompt
EEPROM Downloader> DOWN T1 C ALL
As in the above example, download all EEPROM information immediately after formatting the EEPROM chip of any processor.
4-4.2. EEPROM Downloader Command <option>
The following section describes EEPROM Downloader command options and their uses.
UP uploads or transfers point lists and data from the various partitions of the EEPROM chip in the desired processor to
the hard-disk files of <I>. Data can be uploaded for back-up purposes, when the EEPROM chip or the DCC card is being replaced, or to prepare the point lists or data for modification, when possible.
NOTE
Periodically, the Totalizer Data, point list files, and formatting information should be uploaded to the <I>’s hard disk using EEPROM Downloader. If a card failure (DCC Card) should occur, this information can be
Automatic command Operator-initiated command
EEPROM
Update
Formats, Sequencing, Control Constants, Data, and Point Lists