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Status and Events
52
PS2520G and PS2521G Programmer Manual
Enable Registers
The enable registers determine whether certain events are reported to
the Status Byte Register and SRQ. The programmable power supply
has the following enable registers:
H Event Status Enable Register (ESER)
H Service Request Enable Register (SRER)
H OPERation Enable Register
H QUEStionable Enable Register
The enable registers perform a logical OR function; when one of the
bits of the enable registers is high and the corresponding bit in the
status register is high, the output that controls the set bit of the Status
Byte Register is high.
Various commands set the bits in the enable registers. The following
sections describe the enable registers and the commands that set
them.
Event Status Enable Register (ESER)
The ESER (Figure 12) controls which types of events are summa-
rized by the Event Status Bit (ESB) in the SBR. The bits of the
ESER correspond to the bits of the SESR. Refer to Table 10 on
page 51 for an explanation of each bit in the SESR.
Use the *ESE command to set the bits in the ESER. Use the *ESE?
query to read it.
PON USR CME EXE DDE OPC
76543210
QYE
Ċ
Figure 12: Event Status Enable Register (ESER)
Service Request Enable Register (SRER)
The SRER (Figure 13) controls which bits in the SBR generate a
service request.