Newtons4th PPA500 - Esr

PPA5xx/15xx communications manual
2-3
*ESR?
*ESR?
Function:
Standard event status register query
Description:
Returns the contents of the standard
event status register and clears it.
Format:
*ESR?
Arguments:
none
Reply:
decimal equivalent of bits in standard
event status register
Example:
*ESR?
33
Notes:
The following bits in the standard event
status register have been implemented:
bit 0 OPC (operation complete)
bit 2 QYE (unterminated query error)
bit 3 DDE (device dependent error)
bit 4 EXE (execution error)
bit 5 CME (command interpretation error)
bit 7 PON (power on event)
For example, if a command is sent
incorrectly and is not recognised, the CME
bit will be set and the value of 33 will be
returned.