Appendix A SCPI Command Reference
Common commands
WCDMA Options Version 6.20
263
*ESE
*ESR?
Commands affecting the
service register
The service register represents the highest level within the report structure of the
4400.
The service register contains eight bits.
If any one of the bits 0...5 or 7 is set, the summary status bit (bit 6) of the service
register will be set as well.
Syntax
:*ESE <int1>
Parameters
int1 is an integer.
The valid range is from 0 to 255 (8 bits).
Description
Sets the enable filter (mask) of the event status register.
int1 is the decimal representation of the binary mask.
The mask and the current content of the event status register will be ANDed. If the
result is not zero, then bit 5 of the “Service register” will be set.
Query
The query form reads out the enable filter (mask) currently set and returns its binary
representation in a string.
Example
:*ESE 128
As soon as power has been switched on, bit 7 (Power on) will be set. ANDed with the
mask 128, a binary 1 will occur and thus bit 5 of the service register will be set.
Syntax
:*ESR?
Parameters
There are no parameters.
Description
There is only a query form of this command available.
Query
Returns the decimal representation of the current contents of the event status regis-
ter in a string.
Note: This register is self-destructive, i.e. its contents will be cleared after reading.
Example
After power-on, an :*ESR? command will return "128". This means that bit 7 is
set and all the other bits of the event status register are 0.
The command will clear the event status register and a subsequent :*ESR? com-
mand will return "0".
NOTE
The service register is self-destructive. This means that its contents will be
cleared after reading.
Bit Decimal Meaning
7 128 OPERational status summary. When this bit is set, an
event within the “General operation register group”
(e.g. the 4400 is waiting for a trigger) passed all fil-
ters.
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