Table of Contents
Advertisement
Message queues
Information is exchanged in the form of messages. These messages are held in input and output queues.
The output queue stores responses to query commands. The CohesionSCPI service transmits any data
in the output queue when a read request is received. Unless explicitly specified otherwise in the
command description, all output response data is transmitted in ASCII format.
Common system command summary
Common Commands
*CLS
*IDN?
*OPC?
*OPT?
*ESR?
Common system command descriptions
Command
*CLS
Syntax
*CLS
Description
Clear Status command
Parameters
No parameters
Response
No response
Example
*CLS
Command
*ESR?
Syntax
*ESR?
Description
Query the Standard Event Status Register
Parameters
No parameters
Unsigned integer 8 bit value for the register <0 to 255>, as a string.
Bit
7 (MSB)
6
5
Response
4
3
2
1
0 (LSB)
*ESR? -> 8
Example
*ESR? -> 32
It is recommended to use the *ESR? command query after every command that is sent to the device.
The *ESR? query will be able to catch:
•
Device dependent Error – the device is reporting an error in operation
•
Execution Error – SCPI was unable to execute the given command
•
Command Error – SCPI was unable to parse the given command, likely due to an incorrect
command
Command
*IDN?
Syntax
*IDN?
Description
Query the chassis identification
Parameters
No parameters
Comma separated string with the <manufacturer>,<server name>,<chassis
Response
controller name>,<server version>
Example
*IDN? -> Quantifi Photonics Ltd,CohesionSCPI,PXIE-8133,SW3.00.08
Quantifi Photonics Ltd.
Description
-Clear Status command
-Query the chassis identification
-Query the Operation Complete Status
-Query the modules managed by the CohesionSCPI service
-Query the Standard Event Status Register
Description
Not used
Not used
Command Error
Execution Error
Device dependent Error
Not used
Not used
Not used
Version
2.04
Bit Error Rate Tester | BERT 1005
Decimal Value
0
0
32
16
8
0
0
0
57
Advertisement
Table of Contents
