2.5 Command List
2 – 13
Trigger
*TRG
Trigger the controller to start an exposure cycle. This command fails
if the shutter is under external level control. Otherwise it attempts
to trigger the shutter. A rate error may occur if a cycle is already in
progress.
Wait for Command Execution
*WAI
The instrument will not process further commands until all prior
commands including this one have completed.
*WAI
CR
Example:
Wait for all prior commands to execute before continuing.
2.5.2
Status Reporting Commands
Counts Remaining
CNTR?
Query the counts remaining in the burst of cycles. If no trigger is in
progress or the last cycle is in progress, the command will return 0.
If the count is infinite, it will return -1.
Instrument Status Enable
INSE(?)
{
i
}
Set (query) the instrument status enable register
{
to
i
}
. The instru-
ment status enable register determines which bits of the instrument
status register get ORd together to set INSR BIT in the serial poll
status byte. (see
*STB
).
INSE 3
CR
Example:
When a trigger or an end of cycle occurs the INSR BIT of the serial
poll status byte will be set.
SR470 Shutter Controller
