3152B User Manual
Publication No. 980935 Rev. A
5-26 Programming Reference
EADS North America Test and Services
designated as master.
Response
The 3152B returns MAST or SLAV depending on the current instrument coupling mode assignment.
INSTrument:COUPle:DELay <delay>(?)
HS Syntax: 0003A<float>(?)
Description
Programs the delay time between the master and slave instruments. The waveform start on the slave unit is
delayed with respect to the start of the master.
Parameters
Name
Range
Type
Default
Description
<delay>
0 to 20
Numeric
0
Sets the waveform start delay between instruments in
units of seconds. Instrument 1 is always the master and
reference channel. Instruments 2 to “n” are delayed with
respect to instrument 1. Note that this parameter
operates in conjunction with continuous run mode and
only when multiple instruments are synchronized.
Response
The 3152B returns the current delay value in units of seconds.
INSTrument:COUPle:PATH {ADJacent|ECLT|LBUS}(?)
HS Syntax: 0191A<0|1|2>(?)
Description
This command will select the source path for multi-instrument synchronization.
Parameters
Name
Type
Default
Description
ADJacent
Discrete
ADJ
Selects the adjacent source path. Adjacent path is
automatically configured between two instruments in the
same carrier in the following configurations only:
3100M-3152B-3152B and 3100R-3152B-3152B.
ECLT
Discrete
Selects the backplane ECLT lines as the
synchronization path. In this case, the ECL trigger lines
are turned on and connected between slots to provide
the synchronization signals. Note that VXI backplane
ECL trigger lines are limited to clock frequencies below
66 MHz.
LBUS
Discrete
Selects the backplane LBUS lines as the
synchronization path. In this case, the master
instrument must be plugged on the left and the slave
instrument must be adjacent to the master instrument.
Note that although VXI backplane LBUS lines are not
specified in terms of maximum frequency,
experimentation shows that the 3152B operates
throughout its entire frequency range in this mode.
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