VXi VT1422A 사용자 설명서

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VT1422A Command Reference   403
IEEE-488.2 Common Command Reference
*OPC?
*OPC? 
Operation Complete Query. Causes an instrument to place a 1 into the 
instrument's output queue when all pending instrument operations invoked by SCPI 
commands are finished. By requiring the computer to read this response before 
continuing program execution, synchronization can be ensured between one or more 
instruments and the computer. The data type for this returned value is int16.
Note
Do not use *OPC? to determine when the CAL:SETUP or CAL:TARE commands 
have completed. Instead, use their query forms CAL:SETUP? or CAL:TARE?.
If an algorithm is running continuously, then *OPC? will never return (will "hang"). 
In this case, send a device clear, then *RST or ABORT to stop the algorithm. *OPC? 
must be used with care when the VT1422A is INITiated.
*PMC
*PMC 
Purge Macros Command. Purges all currently defined macros.
*RMC
*RMC <name
Remove individual Macro Command. Removes the named macro 
command.
*RST
*RST 
Reset Command. Resets the VT1422A as follows:
Erases all algorithms
All elements in the Input Channel Buffer (I100 - I163) set to zero.
All elements in the Output Channel Buffer (O100-O163) set to zero
Defines all Analog Input channels to measure voltage 
Configures all Digital I/O channels as inputs
Resets VT1531A and VT1532A Analog Output SCP channels to zero
When Accepted: Not while INITiated
Use VXIplug&play function: hpe1422_reset(...)
WARNING
Note the change in character of output channels when *RST is 
received. Digital outputs change to inputs (appearing now is 
1 k
Ω to +3 V, a TTL one) and analog control outputs change to zero 
(current or voltage). Keep these changes in mind when applying the 
VT1422A to the system or engineering a system for operation with the 
VT1422A. Also, note that each analog output channels disconnects for 
5 - 6 milliseconds to discharge to zero at each *RST.