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What Happens When I
Switch to Local?
Switching to LOCAL causes the counter to adapt the set-
tings indicated on the display, see 'How to select function'.
This means that the counter will never have settings in LO-
CAL which are not possible to set via the front panel.
When switching to remote again, the LOCAL-setting will re-
main. Bus-functions like SRQ mask, output separator,
EOI, etc. will not be altered by switching to LOCAL and
back again.
Summary of Bus Commands
Function Selecting Commands
FREQ A
Frequency measurement on Input-A.
FREQ B
Frequency measurement on Input-B.
FREQ C
Frequency measurement on Input-C.
PER A
Period on Input-A.
TIME A, B
Time interval A to B.
TIME B, A
Time interval B to A.
TOTG A, B
Totalize A, gated by Input-B.
TOTG B, A
Totalize B, gated by Input-A.
TOTS A, B
Totalize A, started and stopped by B.
TOTS B, A
Totalize B, started and stopped by A.
TOTM A
Totalize A, start/stop by
GATE OPEN/CLOSED on the bus.
TOTM B
Totalize B, start/stop by
GATE OPEN/CLOSED on the bus.
RATIO A, B
No. of pulses on A No. of pulses on B.
RATIO B, A
No. of pulses on B No. of pulses on A.
RATIO C, A
No. of pulses on C No. of pulses on A.
RATIO C, B
No. of pulses on C No. of pulses on B.
VMAX A
Positive peak voltage on Input-A.
VMIN A
Negative peak voltage on Input-A.
VMAX B
Positive peak voltage on Input-B.
VMIN B
Negative peak voltage on Input-B.
FNC?
Output the current function setting.
Input Setting Commands
INPA
Selects Input-A.
INPB
Selects Input-B.
TRGSLP POS
Triggering on positive slope.
TRGSLP NEG
Triggering on negative slope.
COUPL AC
AC coupling.
COUPL DC
DC coupling.
COM ON
A and B common via Input-A.
COM OFF
A and B separated.
SENS <num>
<num> = 1 gives 20 mV sensitivity
<num> = 2 gives 50 mV sensitivity
<num> = 3 gives 100mV sensitivity.
GPIB-INTERFACE OPERATION
*
*
*
*
*
*
*
*
*
*
***
TRGLVL <num>
Trigger level, +5.10 V to –5.10 V.
= polarity sign. <num> = level in Volt.
AUTO ON
Automatic trigger level selection.
AUTO OFF
Trigger level selection via bus.
ATT OFF
Attenuation 1.
ATT ON
Attenuation 10.
INPA?
Output the current Input-A settings.
INPB?
Output the current Input-B settings.
Measurement Control Commands
GATE OPEN
Starts the totalizing in TOTM A and
TOTM B
GATE CLOSE
Stops totalizing.
MTIME <num>
Set Measuring-time. <num> = 0.01
to 10 s. 0 = SINGLE
FRUN ON
Selects Free-Run.
FRUN OFF
Selects Triggered mode.
TRIG OFF
Selects Free-Run.
TRIG ON
Selects Triggered mode.
TOUT <num>
Sets Time-Out. <num> = 0.1 to
25.5 s. 0 = Time-Out OFF.
MEAC?
Output the current Measurement
control settings.
Bus Related Commands
OUTM <number>
<number> High-speed
dump
0
OFF
1
OFF
2
OFF
3
OFF
4
ON
MSR <num> Sets SRQ-mask, see 'Service request'.
EOI ON
Selects EOI-mode ON.
EOI OFF
Selects EOI-mode OFF.
SPR <num> Select output separator, see 'Output
separators'.
X
Device trigger, starts a new
measurement.
D
Device clear, returns to default settings.
BUS?
Output the current bus related settings.
ID?
Output identity and which options are
installed.
***
*
Not available in LOCAL mode.
Affect both inputs independent of INPA/INPB.
**
This command must be placed at the end of a pro-
***
gram message.
PM 6666 - OPERATORS MANUAL
Page: 33
**
**
***
Output
MTCXO
format
compensation
NORMAL
ON
SHORT
ON
NORMAL
OFF
SHORT
OFF
FOR HIGH
OFF***
SPEED
DUMP
***
***
***
***
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