User Manual

2400 Series SourceMeter
®
User’s Manual Status Structure 15-17
Event enable registers
As Figure 15-1 shows, each status register set has an enable register. Each event
register bit is logically ANDed (&) to a corresponding enable bit of an enable regis-
ter. Therefore, when an event bit is set and the corresponding enable bit is set (as
programmed by the user), the output (summary) of the register will set to 1, which
in turn sets the summary bit of the Status Byte Register.
The commands to program and read the event enable registers are listed in Table
15-7. For details on programming and reading registers, see “Programming
enable registers,” page 15-5, and “Reading registers,” page 15-6.
NOTE The bits of any enable register can be reset to 0 by sending the 0
parameter value with the appropriate enable command (i.e.
STATus:OPERation:ENABle 0).
Programming example — program and read register set
The command sequence in Table 15-8 programs and reads the measurement
register set. Registers are read using the binary format (which directly indicates
Table 15-7
Event enable registers commands
Command Description Default
*ESE <NDN> or <NRf>
*ESE?
STATus
:OPERation
:ENABle <NDN> or <NRf>
:ENABle?
:MEASurement
:ENABle <NDN> or <NRf>
:ENABle?
:QUEStionable
:ENABle <NDN> or <NRf>
:ENABle?
Program Standard Event Enable Register. (See
“Parameters.”)
Read Standard Event Enable Register.
STATus Subsystem:
Operation Event Enable Register:
Program enable register. (See “Parameters.”)
Read enable register.
Measurement Event Enable Register:
Program enable register. (See “Parameters.”)
Read enable register.
Questionable Event Enable Register:
Program enable register. (See “Parameters.”)
Read Measurement Event Enable Register:
(Note)
Parameters:
<NDN> = #Bxx…x Binary format (each x = 1 or 0)
= #Hx Hexadecimal format (x = 0 to 7FFF)
= #Qx Octal format (x = 0 to 77777)
<NRf> = 0 to 32767 Decimal format
Note: Power-up and STATus:PRESet reset all bits of all enable registers to 0. *CLS has no effect.