Daytronic 10A79-4 Handleiding

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For use in System 10 ....... The 10A79-4 is an extremely useful card that can be remotely controlled to provide:

•Real-time capture of analog-signal peak values, both positive and negative. The card will detect and store in analog

(capacitor) memory the most positive and most negative values experienced by a given analog input signal since the input

channel in question was last reset by an appropriate logic “TRACK” command. Each peak value will remain in memory—though

subject to analog decay*— until reapplication of the respective “TRACK” command, or until occurrence of a subsequent more

positive or more negative signal excursion (thus permitting the capture of successively higher maxima or successively lower

minima). You can easily arrange for all positive or negative peaks reported by a 10A79-4’s Channel No. y to be indefinitely

(digitally) held, by entering a CALCULATE (CLC) command of the form CLC x = MAX CHN y or CLC x = MIN CHN y.

•Real-time “MAX minus MIN” measurement (i.e., the real-time difference between the most positive and most negative values

detected for a given analog input signal since the input channel was last reset). This feature, which requires that the input be

set to “MAX-MIN” mode, is particularly useful when you need to know the precise range of an excursive phenomenon like the

runout, wobble, or looseness of a rotating part. If you wish to display a given “MAX-MIN” value for any length of time, without

decay, you can apply a LOCK (LOK) command to the channel in question.

•“TRACK and HOLD” operation for up to four analog signals. Upon release of an input channel’s “TRACK” condition, the

channel will, when set to this mode of operation, instantly freeze its present value in analog memory until reapplication of the

“TRACK” command. If you wish to display a given “held” value for any length of time, without decay, you can apply a LOCK

(LOK) command to the channel in question.

•Buffering of up to four analog signals for continuous, real-time, unscaled output to various external devices.

Each of the 10A79-4’s four analog inputs can be hard-wired to any selected “A-Card” conditioner within the system that has

“Auxiliary Output” provisions.** Derived from each of the four inputs are:

a.two internal SYSTEM DATA CHANNELS: (1) “+PEAK” and (2) either “MAX-MIN” or “–PEAK,” depending on the input’s

mode setting. These channels can be displayed on the system CRT or LCD display, if present, and can be interrogated like any

other standard data channels via the CHANNEL (CHN) command.

b.two ANALOG OUTPUTS: (1) “+PEAK” and (2) “–PEAK.” These can be sent in turn to a stripchart recorder or similar device,

or can serve as fast “real-time” inputs to a PID servo controller. One or both of a given analog input’s data channels (and

corresponding analog outputs) can be easily converted to “TRACK and HOLD” operation, when the input is set to “– PEAK”

mode.

The 10A79-4’s PEAK-CAPTURE, “MAX – MIN,” and/or “TRACK and HOLD” process is completely controlled by logic-level

inputs received at the 10A79-4’s rear I/O Connector from a Model 10AIO-16 or 10BIO-16 Universal Logic I/O Card, or from

an external logic source. There are two logic inputs for each analog input channel: “TRACK / NOT + PEAK” and “TRACK

/ NOT MAX-MIN.” Standard processing functions may be applied to any of the data channels generated by the 10A79-4,

including calculations, dual limit monitoring, etc.

FOUR CHANNEL PEAK - TRACK - HOLD CARD

MODEL 10A79-4

FOUR CHANNEL PEAK - TRACK - HOLD CARD

[“A’ CARD SERIES]

Product specificaties