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Table
4.X5
-
Measurement
Control
Codes
Function
j
Code
Continuous
measurement mode
selection
!
TO
(See
NOTE
1)
Single
(One-Shot)
measurement
mode
selection
T1
(See
NOTE
2)
Start
Totalize or trigger a
measurement
(T1
mode)
T2
(See
NOTE
3)
Stop Totalize
T3
(See
NOTE
3)
Read
current value while
measurement
is
in
progress
(i.e.,
next reading on the
fly)
RF
(See
NOTE
4)
Math
function
Disable/Enable
MD/ME
Delay
Disable/
Enable
DD/DE
100
AVG
Disable/Enable
NA/AE
Fast data output Disable/Enable
FD/FE
Reset
measurement
RE
NOTE
1:
In
continuous
measurement mode,
the
output buffer
is
updated
at the
end
of
each gate
period.
If
the
buffer
is
being read out
via the
bus
when
the gate period
ends,
updating
is
delayed
until
reading
is
complete.
NOTE
2:
In
single-measurement
mode,
the
output
buffer
is
cleared
every time
a
T1
command
is
received.
The
measurement
completed must be
read,
therefore, before the
next
measurement
cycle
is
triggered.
NOTE
3:
In
making
totalize
measurements, T2 and T3
commands
are used with the
TA
command
and
Special
Function
61.
In this
mode,
the
readings
executed
in
successive totalize
periods are
cumulative;
(the
RE
command
being used to reset the count
to
zero
when
required).
NOTE
4:
The
RF command
must be
sent
each time a
reading
is
required.
The
reading
is
obtained
when
the counter
is
made
a
talker.
4-34
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