THORLABS 4000 Series, Руководство программиста, Страница: 16 / 97

© 2015 Thorlabs 14
Series 4000 SCPI Programmers Reference Manual
3.1.8 *SRE, *SRE?
Syntax
*SRE <value>
*SRE?
Description
The
*SRE
command enables bits in the enable register (
Service Request Enable Register
) for
the
Status Byte Register Group
. See table
Status Byte Register
for a description of the bits.
Once enabled, the corresponding bits may generate a Request for Service (RQS) in the status
byte. This RQS event may generate a "call back" to your application as a type of asynchronous
interrupt.
3.1.9 *CLS
Syntax
*CLS
Description
The
*CLS
command clears the event registers in all register groups. This command also clears
the error queue.
3.1.10 *ESR?, *ESE, *ESE?
Syntax
*ESR?
*ESE <value>
*ESE?
Description
The
*ESR?
command queries the
Standard Event Register
. In order to be reported to the
Status
Byte Register
, the corresponding bits in the event register must be enabled using the
*ESE
command.
The
*ESE
command enables bits in the enable register (
Standard Event Status Enable
Register
) for the
Standard Event Register Group
. The selected bits are then reported to bit 5 of
the
Status Byte Register
.
See also chapter Status Subsystem and figure Status Structure .
The following table lists the bit definitions for the
Standard Event Register Group.
Table <%+%>:
Standard Event Register
Bit # Decimal Value Description
0 1 Operation Complete
All commands prior to and including
*OPC
have been executed
1 2 not used
2 4 Query Error
The instrument tried to read the output buffer but it was empty or a new
command line was received before a previous query has been read or both the
input and output buffers are full.
3 8 Device Dependent Error
A self-test or calibration error occurred (an error in the -300...-399 range or any
positive error has been generated). For a complete listing of error messages,
see chapter SCPI Error Messages .
13
65 65
12
81