procedure, however, you will simply interrogate the system to confirm pre-
entered
TYP and LCT values for a few selected channels. YOU WILL NOT—AND
SHOULD NOT—CHANGE THESE VALUES AT THIS TIME. If, in the future, you do
need for some reason to reconfigure one or more real channels, refer to
Appen-
dix C
of the System 10 Guidebook.
In this section you will also learn how to use the keyboard’s
Step and Back
Space
keys for rapid sequential interrogations.
a. Turn to
Appendix A of your System 10 Guidebook.* There you will find a cus-
tomized printout, which we will call the “System 10 Data Sheet.” This is a com-
plete listing of all data channels in your system as shipped, giving important
setup information for each existing real channel, including
1. the MODEL NUMBER of the plug-in card that handles the channel
2. the “TYPE” designation for the channel
3. the “LOCATION” of the channel relative to the system’s A SLOTS
4. the initial DIGITAL FILTER SETTING for the channel (0 through 9)
5. the initial SCALING FACTOR (“EMM”) and ZERO OFFSET (“BEE”) values for
the channel
6. the initial LOW and HIGH LIMIT SETTINGS for the channel
7. the initial “LIMIT LOGIC” SETTINGS for the channel
8. other channel parameters that may apply (including Linearization Func-
tion, Conversion Channel assignment, Range value, and Sensitivity value)
The data sheet also shows which channels, if any, have been preassigned to
CALCULATION and/or ANALOG OUTPUT functions. It lists all “EXECUTE,”
CONDITIONAL,” and “COMMAND” statements that have been pre-entered for
your system, as well as all “LOGIC SOURCE” and “BIT DESIGNATOR” assign-
ments for system bits. Other miscellaneous system parameters are also
listed. Finally, it gives all relevant SERIAL NUMBERS and SOFTWARE/ HARD-
WARE “VERSION” NUMBERS, plus all initial mainframe A-SLOT ASSIGN-
MENTS.
For the purposes of this tutorial procedure, you need only refer to the “CHAN-
NEL CONFIGURATION” section of the data sheet.
b. Since you will not be entering any setup values here, but only interrogating the
system for existing values, the EEPROM Write Protect function need not be
enabled. Turn OFF the mainframe’s EEPROM Write Protect Switch by placing
it in the
downward position. If you enabled the EEPROM Write Protect func-
tion by commanding
BIT 999 = 1 [CR] in Step a of Section 5, you should now
disable it by entering a command of
BIT 999 = 0 [CR]
c. Enter from the keyboard a command of
TYP 1 [CR]
This is an INTERROGATION (or “READ”) command. Unlike most SETUP (or
“WRITE”) commands, an interrogation command has no “equals” sign (=). It
doesn’t serve to enter (or “write”) system configuration data into the Central
Processor’s EEPROM, but to retrieve (or “read”) configuration data out of it.
The two-character (hexadecimal) “TYPE CODE” shown on the data sheet for
Channel No. 1 should now appear in the billboard region of the mainframe or
keyboard display. A channel’s type code specifies one or more special pro-
B - 17
DATA CHANNEL CONFIGURATION
“O
NTHE
A
IR
” (B-S
IZED
)
* See note, previous page.
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