field when a full-scale load is applied?). Also verify that the appropriate
bargraph color changes occur as Channel No. x’s data reading violates
the high- and low-limit values you set for it in Section 13.
v. You might want to re-enter TEXT EDITOR MODE and add other types of
bargraphs to the video page, dedicated either to Channel No. x or to one
or more other “live” system channels.
18
OPTIONAL HISTORY RECORDING
If your mainframe doesn’t have a Model 10BDR64 History Card, you can
skip this section.
The History Card lets you make, store, and output digital recordings of numer-
ical and logic data acquired by a B-sized mainframe.
You can instruct any one of the History Card’s four independent RAM
recorders to automatically record a predefined list of randomly selected data
channels and logic bits. Recording can be at preset time intervals, or can be
triggered by a specific combination of system logic, limit, and/or time-interval
conditions. Similar conditions can also be specified for halting and restarting
each recorder.
Special output commands let you transmit to an external computer, printer, or
CRT display—via the mainframe’s Computer Interface Port—all or part of the
data recordings made by one of the four recorders since it was last interro-
gated. You can also output an expandable “history window” consisting of a
selected range of recordings made, if desired, both
before and after occur-
rence of a halt-triggering condition. This lets you review the specific “data his-
tory” associated with, say, a critical limit violation or process shutdown. You
can select variables to appear in a recorder’s output (such as time, date, seri-
al number, etc.), and the order in which these variables are to be transmitted.
The History Card lets you play back as a live data channel the data last
recorded for any given system channel or the data recorded for that channel
at a specified time in the past.* Through a special “time search” function, it’s
possible to quickly review the values recorded by a given recorder for one or
a set of data channels over a period of time. You can also “replay” all data for
a given recorder’s “playback” channels, from the “oldest” to the “latest,” using
a variable time scale. This permits “slow motion” playback of all data record-
ed during a fast event, or a fast review of all data recorded for a test or
process of long duration. Playback of system bit groups is also possible,
using specially configured BINARY “CONVERSION” CHANNELS.
For a general explanation of how the History Card works, you should read
Section 3.B.4(a) of the
System 10 Guidebook. Below, you will learn how to
• enter and exit History Card SETUP MODE, using the
SETUP MODE
(SMD)
and RECORD MODE (RMD) commands, respectively
B - 42
OPTIONAL HISTORY RECORDING
“O
NTHE
A
IR
” (B-S
IZED
)
*When a Model 10BSPC384 High Density History SPC Option Card is present, you can
also play back the lowest and highest values recorded for a given data channel since a
given recording in the past, and the continuous average value for the data reported by the
channel over the same time period. “Statistical” playback functions provided by the Model
10BSPC384 also include X-BAR and RANGE, automatically calculated over successive
sampling periods for a given channel. See Section 3.B.4(d) of the System 10 Guidebook
for complete details.
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