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OPERATORS MANUAL
TABLE OF CONTENTS
MODEL 2251A
SECTION 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . .
1-1
1.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1.2
Measurement Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
1.3
Input Signal Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1.4
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
1.5
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . .
1-5
1.6
Definitions and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
1.7
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
1.8
Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-17
SECTION 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2.2
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2.3
Reshipment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2.4
Interrupt Level and Logical Address Setting . . . . . . . . . . . .
2-1
2.5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2
SECTION 3
USING THE INSTRUMENT . . . . . . . . . . . . . . . . . . . . . .
3-1
3.1
VXIbus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3.2
VXIbus Logical Address and Interrupt Level Assignment .
3-1
3.3
2251A Home State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2
3.4
Functional
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3
3.5
Output Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4
3.6
Input Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-6
3.7
Selecting the Measurement Function . . . . . . . . . . . . . . . . . .
3-11
3.8
Numerical Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-12
3.9
Resolution Control Selection . . . . . . . . . . . . . . . . . . . . . . . .
3-13
3.10
Signal Conditional Parameters . . . . . . . . . . . . . . . . . . . . . . .
3-14
3.11
Measurement Control Codes . . . . . . . . . . . . . . . . . . . . . . . .
3-15
3.12
Store and Recall Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-16
3.13
Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-17
3.14
2251A Supported IEEE-488.2 Commands . . . . . . . . . . . . .
3-20
3.15
2251A IEEE-488.2 Status Reporting Structure Requiremnts
3-22
3.16
Device Dependent Status Bit (DDSB) . . . . . . . . . . . . . . . . .
3-23
3.17
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-25
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