Status Registers
Status Register System
28
In addition to the status byte register, the status byte group
also contains the service request enable register. The status
byte service request enable register lets you choose which
bits in the Status Byte Register will trigger a service request.
Standard Event Status Register
The standard event status register is used to determine the
specific event that sets bit 5 in the status byte register. The
standard event status register does not have negative and
positive transition registers, nor a condition register. Use the
IEEE common commands at the beginning of “Command
Reference” on page 49 to access the register.
To query the standard event status register, send the *ESR
command. The response will be the decimal sum of the bits
which are set to 1. For example, if bit number 7 and bit
number 3 are set to 1, the decimal sum of the 2 bits is 128
plus 8. So the decimal value 136 is returned.
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