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File Structures
20: Digital Byte
21: Custom Program
lon
This variable contains the channel number in the HP 3421 A to be measured.
Lo #% 2
This variable stores the lower (left) value for the scale in the printout.
HC #2
This variable stores the upper (right) value for the scale in the printout.
FIlEC*D
This variable stores the name of the conversion subprogram to be called if unit
conversions are being used, or the name of the custom subprogram to be called if the
measurement selection is custom program.
The name may be from 1 to 8 characters
long.
HEF C*
This variable stores the name of the file containing the subprogram referenced by
H1# #2 The name may be from 1 to 20 characters long.
ECE
This variable stores control information which specifies how each measurement is to be
conducted.
Each character contains meaning for a different parameter.
The
character positions are listed in order:
1: Conversion function (Y or N)
2: Temperature units (C F K or R)
3: Number of digits (3, 4, or 5)
1.2 MONITOR SETUP FILES
A monitor setup may contain the specifications for up to 18 traces. Each trace needs information about
the nature of the measurement being taken, scaling information for the screen, and limit tests. The file
contains a header block, and one data record for each channel.
The descriptor block contains one tag,
TITLE, followed by one item, which is the screen title.
the following code:
READ #1. I+23A1FCI 0, AEF, CIT, Fol FECT LECT
BREAD #1iL1cI,0 © NEXT J
FOR J=1 TO 5 ©
REH
FOR J=1 TO I+72 STEFF 18 2 READ #1:mMFCdd @ HERT J
READ #13S10la.5200
The subscript I refers to the trace number. The variables are used as follows:
H1Eo*o
This variable stores the name of the conversion subprogram to be called if unit
conversions are being used, or the name of the custom subprogram to be called if the
measurement selection is custom program.
The name may be from 1 to 8 characters
long.
Fedo ®
This variable stores the name of the file containing the subprogram referenced by
H1#%¢#*2., The name may be from 1 to 20 characters long.
1-2
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