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Digitizers Command Reference 77Chapter 3
OUTPut
The OUTPut command subsystem sets the source of output pulses for the
specified TTL Trigger line (TTLT0-TTLT7) and enables or disables the
output.
Subsystem Syntax OUTPut
:TTLT<n>:SOURce TRIGger | SAMPle | BOTH
:TTLT<n>:SOURce?
:TTLT<n>[:STATe] ON | 1 | OFF | 0
:TTLT<n>[:STATe]?
OUTput:TTLT<n>:SOURce
OUTPut:TTLT<n>:SOURce TRIG | SAMP | BOTH sets the source of output
pulses for the specified TTL Trigger line. <n> can have the value 0 through
7 (TTLT0 - TTLT7).
Comments Output Pulses Triggering: The Digitizer allows separate control of the trigger
signal and the sample signal output to the TTL trigger lines. Each can output
to only a single line. However, they can both output onto the same line when
the BOTH parameter is used. When BOTH is used, no other lines can be
enabled. Output pulses will not be sent until the TTL trigger line state is set
to ON.
Resource Conflicts: Resource conflicts will occur if either the trigger or
sample source is already using a TTL line you attempt to enable. The trigger
source will be set to IMMediate if it is the conflict. The sample source will be
set to TIMer if it is the conflict. A “Settings Conflict” error will occur.
Settings Conflict Error: Setting the trigger or sample source to a TTL trigger
line that has its output state ON will result in a “Settings Conflict” error and
the output state will be changed to OFF. The specified trigger line will be
assigned to the sample or trigger source.
Executable when initiated: NO
Coupled Command: YES
Reset (*RST) Condition: Source is SAMPle for all TTL lines
OUTPut:TTLT<n>:SOURce?
OUTPut:TTLT<n>:SOURce? queries the specified TTL Trigger line (TTLT0-
TTLT7) to identify the source of output pulses. A response of “TRIG”
indicates the source is a trigger event, a response of “SAMP” indicates the
source is a sample event, and a response of “BOTH” indicates the source
is both a trigger event and a sample event.