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2201R Mobile Tester SCPI Reference Guide
Chapter 4 Common commands
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Copyright © 2016 Aeroflex Limited. All rights reserved.
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The service register
The service register represents the highest level within the report structure of the 2201R.
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 is set as well.
NOTE
The service register is self-destructive. This means that its contents are 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 2201R is
waiting for a trigger) passed all filters.
6
64
Summary status bit. This bit is always set as soon as any other
bit of the service register has been set.
Note: The related command is
*SRE
(see below for details).
5
32
Event status summary. When this bit is set, an event within the
Event Status register group (e.g. an error occurred) passed all
filters.
4
16
Message available. This bit is set to
1
as soon as a query has
been completed and measurement result(s) are available.
3
8
Not used.
2
4
Error queue status. When this bit is set, the error queue contains
error messages. Up to 10 error messages can be logged in the
error queue. The error queue can be read out, using the
:SYSTem:ERRor? command.
1
2
Remote command completed. This bit is set to
1
after a remote
(SCPI) command has been completed.
Note: However, when the 2201R receives a SCPI command, it
blocks the remote control interface until the command has been
completed.
0
1
Message queue status.
This bit is set to
1
as soon as a message is available in the
2201R's internal message queue. Up to 10 messages can be
logged in the message queue. To write to or to read from the
message queue, use the :SYSTem:MESSage command.