Racal Instruments 1994 Service Manual page 133

Universaltimer/counters
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Table
4.10
-
Numerical
Input
Format
(Cont'd)
Byte No.
|
Interpretation
I
Permitted
ASCII
Characters
,
1
-
I
NOTE
7:
Numbers
may
be terminated by
one of the
same
terminators used
for
output messages,
or
by another
device-dependent message.
NOTE
8:
Units are implied;
volts
for
trigger
levels,
seconds
for
gate/delay
times.
4.10.2.7
Table
4.11
presents
the
measurement
function codes
for
the 1994.
Table
4.11 -
Measurement
Function
Codes
Function
Code
Frequency
A
FA
Frequency
B
FB
Frequency
C
FC
Period
A
PA
Time
Interval A-*>B
TI
Totalize
A
by
B
TA
Ratio
A/B
RA
Ratio
C/B
RC
Rise
Time
A
RT
Fall
Time
A
FT
Positive Pulse
Width
A
PW
Negative
Pulse
Width
A
NW
Phase
A
rel
B
PH
i
Check
CK
-j
NOTE:
Option
41
must
be
installed
in
the
1994
for
FC
and
RC
to
be accepted
as valid
commands.
4-31

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