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MST488-27 SVC 013004
i
TABLE OF CONTENTS
SECTION
PAGE
SECTION 1 - INTRODUCTION
1.1
Scope of Manual ..................................................................................................................................... 1-1
1.2
General Description................................................................................................................................. 1-1
1.3
Specifications .......................................................................................................................................... 1-1
1.4
Equipment Supplied ................................................................................................................................ 1-4
1.5
Accessories ............................................................................................................................................. 1-4
SECTION 2 - INSTALLATION
2.1
Unpacking and Inspection ....................................................................................................................... 2-1
2.2
Installation ............................................................................................................................................... 2-1
2.2.1
Set (GPIB) Device Address, Configure RS 232................................................................................. 2-1
2.2.1.1
Using GPIB Only.......................................................................................................................... 2-1
2.2.1.2
Using RS 232 Only ...................................................................................................................... 2-2
2.2.1.3
Using both GPIB addressing and RS 232.................................................................................... 2-3
2.2.1.4
RS 232 Connections .................................................................................................................... 2-3
2.2.2
Start-up Language/Compatibility Mode/GPIB Addressing Default .................................................... 2-3
2.2.3
Set Shield Ground Jumper ................................................................................................................ 2-4
2.2.4
Final System Interconnections........................................................................................................... 2-4
2.3
Rear Terminations on the MST 488-27 ................................................................................................... 2-5
SECTION 3 - OPERATION
3.1
General.................................................................................................................................................... 3-1
3.2
IEEE 488 (GPIB) Bus Protocol................................................................................................................ 3-1
3.2.1
String Parsing .................................................................................................................................... 3-2
3.3
RS 232 Operation.................................................................................................................................... 3-3
3.3.1
RS 232 With GPIB addressing .......................................................................................................... 3-3
3.3.2
Serial INterface .................................................................................................................................. 3-3
3.3.3
RS 232 Implementation ..................................................................................................................... 3-4
3.3.3.1
Echo Mode................................................................................................................................... 3-5
3.3.3.2
Prompt Method ............................................................................................................................ 3-5
3.3.3.3
XON XOFF Method...................................................................................................................... 3-5
3.3.4
Programming Techniques to Optimize Power Supply performance .................................................. 3-6
3.4
SCPI Programming ................................................................................................................................. 3-6
3.4.1
SCPI Messages ................................................................................................................................. 3-7
3.4.2
Common Commands/Queries ........................................................................................................... 3-7
3.4.3
SCPI Subsystem Command/Query Structure.................................................................................... 3-7
3.4.4
Program Message Structure.............................................................................................................. 3-8
3.4.4.1
Keyword ....................................................................................................................................... 3-8
3.4.4.2
Keyword Separator ...................................................................................................................... 3-10
3.4.4.3
Query Indicator ............................................................................................................................ 3-10
3.4.4.4
Data ............................................................................................................................................. 3-10
3.4.4.5
Data Separator............................................................................................................................. 3-10
3.4.4.6
Message Unit Separator .............................................................................................................. 3-10
3.4.4.7
Root Specifier .............................................................................................................................. 3-10
3.4.5
Addressing Multiple Power Supplies ................................................................................................. 3-10
3.4.6
Understanding The Command Structure ........................................................................................... 3-11
3.4.7
Program Message Syntax Summary ................................................................................................. 3-12
3.4.8
Status Reporting................................................................................................................................ 3-12
3.4.8.1
Status Reporting Structure........................................................................................................... 3-12
3.4.8.2
Operational Status Register......................................................................................................... 3-13
3.4.8.3
QUEStionable Status Register..................................................................................................... 3-13
3.4.8.4
Multiple Logical Instruments ........................................................................................................ 3-14
3.4.9
SCPI Program Example..................................................................................................................... 3-16
3.5
CIIL Programming ................................................................................................................................... 3-16
