GW Instek PPH-1503 - Manual (Page 127)

REMOTE CONTROL
127
Function
*STB?
Function Query the status byte register. This is the same as
performing a serial poll, however the master
summary bit (MSS, bit 6) will not be cleared by the
*STB command. The return value range is from 0
to 255.
Example *STB?
81
Returns 81 if the status byte register is set to 0101
0001.
Standard Event Register Commands
Command *ESE
Function Sets the standard event enable register. The
allowable value range is 0~255.
Example *ESE 65
Sets the ESER as 0100 0001.
Command
*ESE?
Function Queries the standard event enable register. It
returns are binary-weighted decimal value
representing all the enabled bits in the standard
event register.
Example *ESE?
65
Returns 65, as the ESER is set as 0100 0001.
Command
*ESR?