Chapter 4 Remote Interface Reference
The SCPI Status Registers
108
Using *STB? to Read the Status Byte
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7KH#*STB?#FRPPDQG#LV#QRW#KDQGOHG#DXWRPDWLFDOO\#E\#WKH#,(((07;;#EXV#
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FRPSOHWHG1#3ROOLQJ#LV#QRW#SRVVLEOH#XVLQJ#WKH#*STB?#FRPPDQG1#([HFXWLQJ#WKH#
*STB?#FRPPDQG#GRHV#QRW#FOHDU#WKH#6WDWXV#%\WH#VXPPDU\#UHJLVWHU1
Using the Message Available Bit (MAV)
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To Interrupt Your Bus Controller Using SRQ
4
Send a device clear message to clear the power supply’s output buffer (e.g.,
CLEAR 705
).
5
Clear the event registers with the
*CLS
(clear status) command.
6
Set up the enable register masks. Execute the
*ESE
command to set up the
Standard Event register and the
*SRE
command for the Status Byte.
7
Send the
*OPC?
(operation complete query) command and enter the result to
ensure synchronization.
8
Enable your bus controller’s IEEE-488 SRQ interrupt.
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