Racal Instruments 1256E, Руководство пользователя

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1256E User Manual
Advanced SCPI Operations 8-12 Racal Instruments
©
2002
This command may be used to execute the next step of a scan list.
Output Trigger Signals
from the 1256
The 1256 may be programmed to generate an output trigger pulse
each time a relay operation has been completed. The output
trigger pulse may be placed on the external trigger output found on
the rear panel of the 1256. Refer to
Figure 8-2: External Trigger
In and External Trigger Out for connector location and signal
information. This trigger pulse may be used to inform other
instruments that the relay(s) have settled, and a new measurement
may take place.
Selecting an Output
Trigger Destination The OUTPUT:TRIGGER command is used to enable or disable
the external trigger line. The syntax for this command is:
:OUTput
:TRIGger
[:STATe] { ON | 1 | OFF | 0 }
Once the trigger output is enabled, it may be disabled by:
A) Deselecting the line, using the “OFF” parameter.
B) Sending the *RST command.
For example, the following commands may be sent.
To enable the external trigger output:
OUTPUT:TRIGGER ON
To disable the external trigger output:
OUTP:TRIG 0
The present destination for the trigger output pulse may be read by
sending each of the following queries:
OUTPUT:TRIG?
If the trigger output is disabled, the reply to this query will be a “
0
".
If an output trigger is enabled, the reply will be “
1
".
A delay may also be used to prevent the trigger form getting to the
UUT until a certain time has passed.
OUTP:DELay <output trigger delay time>
This produces a delay from the time the relay closes till the trigger
is felt. The trigger is programmed in seconds, with a resolution of 1
microsecond. This is the
resolution and not the accuracy . That
means that you will receive 0.00000 (5 decimal places) when you