Racal Instruments 2151 Manual page 6

TABLE OF CONTENTS
(Contd)
Paragraph
4
5
6
7
7
8
9
11
13
15
17
18
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20
21
22
24
25
26
27
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29
31
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35
36
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41
42
43
47
49
50
52
54
55
61
63
66
68
71
72
76
Contents 2
Title
Page
INITIAL
SWITCH-ON
4.3
FREQUENCY MEASUREMENT
-
INPUT
A
4-3
FREQUENCY MEASUREMENT
-
INPUT
B
4-4
FREQUENCY MEASUREMENT
-
INPUT
C
(2151
ONLY)
4-4
Normal
Automatic Mode
...
4-4
Manual Mode
4.5
Further Functions
in
FREQ
C
(Automatic
Mode
Only)
4_5
Set
LOW FM
(FREQ
C)
1
4.5
Set
TRACK
(FREQ
C)
4-6
RATIO
MEASUREMENTS
C/B
(2151
ONLY),
C/A
(2151
ONLY)
AND
B/A
4-6
MEASUREMENT
SAMPLE RATE
4-7
Setting
and
U
sing the
Sample
Rate
4-7
Interrogating the Sample
Rate
4-7
MULT
FUNCTION
4.7
Setting the Multiplier
4.7
Enabling
the Multiplier
4-7
Interrogating the Multiplier
4-7
OFFSET FUNCTION
4.3
Setting the
Offset
4-8
Enabling
the Offset
4-8
Interrogating the Offset
4-8
SMOOTH
FUNCTION "*
4.3
CLK
10
FREQUENCY STANDARD
4-8
GATE
TIME
4.9
SPECIAL FUNCTIONS
4-10
Setting the Special Function
Register
4-11
Enabling and
Disabling the
Special
Functions
.
4-1
1
ERROR CODES
~
4_ 12
Clearing
the
Error Codes
4-12
VXI OPERATING
MODES
I
4-13
READING OUT DATA
4-13
CONTROLLING THE INSTRUMENT
4-13
DATA OUTPUT FORMAT -NORMAL
4-14
DATA OUTPUT FORMAT
-.DUMP
MODES
4-14
REQUESTING
SERVICE
4_18
STATUS BYTE
4
.I 8
SETTING THE ENABLE
REGISTERS
,
4-22
MESSAGE PROTOCOL AND
SYNTAX
4-22
System Message
Traffic
4-22
Program Messages
4-22
Response Messages
4-23
White
Space Character
4-23
OVERLAPPED/SEQUENTIAL COMMANDS
4-23
COMMANDS
4-24
2151
OPS
A1571/DA