Aim MIL-STD-1553 - Page 421

MIL-STD-1553 Reference Manual
407
Chapter 9 – Bus Monitor Functions
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Offset compensation mode
Value
Description
API_SCOPE_OFFSET_COMP_RESET
Reset compensation offsets to a value of 0
API_SCOPE_OFFSET_COMP_MEASURE
Measure zero line offsets, set the values for further scope
recordings and return the ascertained offset values
API_SCOPE_OFFSET_COMP_GET
Just returns the active offsets without performing any
measurements
O
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Optional pointer to TY_API_SCOPE_OFFSETS structure where the active zero
line offset values will be stored to. Set this pointer to NULL, if you don’t need the
values.
typedef struct api_offsets
{
AiInt32 lOffsetA_3V_stub;
AiInt32 lOffsetB_3V_stub;
AiInt32 lOffsetA_30V_stub;
AiInt32 lOffsetB_30V_stub;
AiInt32 lOffsetA_3V_ext;
AiInt32 lOffsetB_3V_ext;
AiInt32 lOffsetA_30V_ext;
AiInt32 lOffsetB_30V_ext;
} TY_API_SCOPE_OFFSETS;
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A
A
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3
V
V
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b
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The offset which will be added to all channel A values when scope is used in mode
API_SCOPE_COUPLING_STUB and 3V measurement range.
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B
B
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3
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b
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The offset which will be added to all channel B values when scope is used in mode
API_SCOPE_COUPLING_STUB and 3V measurement range.
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A
A
_
_
3
3
0
0
V
V
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_
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b
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The offset which will be added to all channel A values when scope is used in mode
API_SCOPE_COUPLING_STUB and 30V measurement range.
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B
B
_
_
3
3
0
0
V
V
_
_
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b
b
The offset which will be added to all channel B values when scope is used in mode
API_SCOPE_COUPLING_STUB and 30V measurement range.
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p
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-
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l
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t
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A
A
_
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3
3
V
V
_
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e
e
x
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t
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The offset which will be added to all channel A values when scope is used in mode
API_SCOPE_COUPLING_EXTERN and 3V measurement range.
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B
B
_
_
3
3
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V
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x
x
t
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The offset which will be added to all channel B values when scope is used in mode
API_SCOPE_COUPLING_EXTERN and 3V measurement range.
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-
-
>
>
l
l
O
O
f
f
f
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e
t
t
A
A
_
_
3
3
0
0
V
V
_
_
e
e
x
x
t
t
The offset which will be added to all channel A values when scope is used in mode
API_SCOPE_COUPLING_EXTERN and 30V measurement range.
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-
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B
B
_
_
3
3
0
0
V
V
_
_
e
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x
x
t
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The offset which will be added to all channel B values when scope is used in mode
API_SCOPE_COUPLING_EXTERN and 30V measurement range.