Additional Basics on Remote Control
R&S
®
NGP800
179
User Manual 5601.5610.02 ─ 04
Event Status Register (ESR) and Event Status Enable Register (ESE)
The ESR is defined in IEEE 488.2. It can be compared with the
EVENt
part of an SCPI
register. The event status register can be read out using the command
*ESR?
. The
ESE corresponds to the
ENABle
part of an SCPI register. If a bit is set in the ESE and
the associated bit in the ESR changes from 0 to 1, the ESB bit in the STB is set. The
ESE register can be set using the command
*ESE
and read using the command
*ESE?
.
STATus:OPERation Register
In the
CONDition
part, this register contains information on which actions the instru-
ment is being executing or, in the
EVENt
part, information on which actions the instru-
ment has executed since the last reading. It can be read using the commands
STATus:OPERation:CONDition?
or
STATus:OPERation[:EVENt]?
.
Bit No. Meaning
0
Not used
1 to 3
Not used
4
MEASuring
This bit is set on event new measurement available.
5 to 9
Not used
10
Logging
This bit is set as long as "Logging" is enabled
11
Not used
12
Not used
13 to
14
Not used
15
This bit is always 0
STATus:QUEStionable Register
This register contains information about different states which can occur. It can be read
using the commands
STATus:QUEStionable:CONDition?
and
STATus:QUEStionable[:EVENt]?
.
Table A-6: Bits of the STATus:QUEStionable register
Bit No.
Meaning
0
Voltage
This bit is set while the instrument is in constant current mode (CC). The voltage is regula-
ted and the current is constant.
1
Current
This bit is set while the instrument is in constant voltage mode (CV). The current is variable
and the voltage is constant.
2
Not used
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