Fluke 9640A Series, Instruction Manual, Page: 113 / 324

4B-1
Chapter 4B
SCPI and IEEE Bus Descriptions
Title Page
What is SCPI?.................................................................................................... 4B-3
Reason for SCPI ............................................................................................ 4B-3
Compatibility................................................................................................. 4B-3
Management and Maintenance of Programs...................................................... 4B-4
How does SCPI Work in the Instrument?.......................................................... 4B-5
Message Exchange Control Protocol............................................................. 4B-5
Protocol Requirements .................................................................................. 4B-6
Order of Execution - Deferred Commands ............................................... 4B-6
Sequential and Overlapped Commands .................................................... 4B-7
Remote Local Protocol.............................................................................. 4B-7
Program and Response Messages ...................................................................... 4B-7
Syntax and Style ............................................................................................ 4B-8
Syntax of Program Messages .................................................................... 4B-8
Syntax of Response Messages................................................................... 4B-10
Command Tree .................................................................................................. 4B-11
Moving down the Command Tree................................................................. 4B-11
Parameters.......................................................................................................... 4B-12
Numeric Data................................................................................................. 4B-12
Boolean Data ................................................................................................. 4B-12
Other Data Types........................................................................................... 4B-12
Initialization and Resetting ................................................................................ 4B-13
Reset Strategy................................................................................................ 4B-13
Bus Initialization ....................................................................................... 4B-13
Message Exchange Initialization............................................................... 4B-13
Device Initialization .................................................................................. 4B-14
The *RST Command................................................................................. 4B-14
The *CLS Command................................................................................. 4B-14
Status Reporting System.................................................................................... 4B-14
Introduction ................................................................................................... 4B-14
Error Reporting.............................................................................................. 4B-16
Read the Error/Event Queue ..................................................................... 4B-16
Standardized Error Numbers..................................................................... 4B-16
Command Error......................................................................................... 4B-16
Execution Error ......................................................................................... 4B-16
Device-specific Error ................................................................................ 4B-17