360 Chapter 6
Using the STATus System
Using the Status Registers
Using the STATus System
The standard event status register is used to determine the specific
event that set bit 5 in the status byte register. To query the standard
event status register, send the command *ESR?. The response will be
the decimal sum of the bits which are enabled (set to 1). For example, if
bit number 7 and bit number 3 are enabled, the decimal sum of the 2
bits is 128 plus 8. So the decimal value 136 is returned.
In addition to the standard event status register, the standard event
status group also contains a standard event status enable register. This
register lets you choose which bits in the standard event status register
will set the summary bit (bit 5 of the status byte register) to 1. Send the
*ESE <number> command where <number> is the sum of the decimal
values of the bits you want to enable. For example, to enable bit 7 and
bit 6 so that whenever either of those bits is set to 1, the standard event
status summary bit of the status byte register will be set to 1, send the
command *ESE 192 (128 + 64). The command *ESE? returns the
decimal value of the sum of the bits previously enabled with the *ESE
<number> command.
The standard event status enable register presets to zeros (0).
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