EXU r = INC150:LOKy [CR]
Trigger this “bit going high” EXECUTE as you did in Step i, above. Use an
interrogation of
CHN 150 [CR] to verify that the reading of Channel No.
150 has increased by “1.” Display Channel No. y—or use
CHN y [CR]—to
verify that the reading of this channel is “locked” at its current value,
regardless of the behavior of the input signal.
If your mainframe has a multichannel
LCD or VFD display, you might also
want to set up and verify an
EXU or EXU/ function that automatically calls
a specific display page and sets a given channel unit legend, using the
commands discussed in Section 5, above—for example,
EXU r = PAG29:LEG150=LBS [CR]
Since this EXECUTE contains a SETUP command (“LEG=”), the EEPROM
Write Protect function must be enabled at the time the EXECUTE is trig-
gered in order for this command to be effective.
p. To cancel the two “EXECUTE” functions that are now activated by the
“going high” and “going low” of Bit No. r, enter the following commands:
EXU r = N/A [CR]
EXU /r = N/A [CR]
For more examples of the EXECUTE (EXU) command, see Section 2.K.2 of
the
System 10 Guidebook.
15
SETTING DATA-
TRANSMISSION CHARACTERISTICS
Your system can be made to transmit different kinds of “data” from its COM-
PUTER INTERFACE PORT, including
•numerical values contained in system DATA CHANNELS (whether these
values represent actual measurements, calculations, downloaded con-
stants, etc.), and
• “limit status” information pertaining to these values
We won’t go into the various kinds of output your system can be commanded
to transmit in response to a
CHANNEL (CHN), DUMP (DMP), SNAPSHOT
(SNP)
, STREAM (STR), HARD COPY (HCY), or LIMIT ZONE (LZN) com-
mand. All this is discussed in detail in Section 1.H of the
System 10 Guide-
book
.
All you’ll do here will be to interrogate your system for a few important trans-
mission characteristics you should be aware of. To modify these and other
transmission characteristics, refer to Section 1.H.3 of the
System 10 Guide-
book
.
a. Enter a command of
OPT [CR]
For a mainframe that has just been shipped, the normal response to this
interrogation should be “[0D,0A]”—that is, “zero D, zero A.” The
OUTPUT
TERMINATOR
(or “OPT”) is a string of one or two standard ASCII charac-
ters added at the end of
every line of transmission. In almost all cases, it
is initially set to CARRIAGE RETURN, LINE FEED ([CR][LF]). In hexadeci-
mal, this string is expressed as “[0D, 0A].”
A - 25
SETTING DATA-TRANSMISSION CHARACTERISTICS
“O
NTHE
A
IR
” (A-S
IZED
)
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