MDO3000 Programmer Manual.pdf - 第188页

Commands Listed in A lphabetical Order SDIDATASSM set s the ARINC429 DA T A field width to 23 bits wide (covering bits 9 through 31 of the 32 bit packet) Examples BUS:B1:ARIN C429A:DATA:FOR MAT DATA sets the ARINC429 DA T…

100%1 / 1158
Commands Listed in Alphabetical Order
Syntax
BUS?
BUS:B<x>:ARINC429A:BITRate
This command specifies the bit rate for the ARINC429 bus.
Conditions
This command requires installation of a DPO4AERO application module for
MDO4000C models, or MDO3AERO for MDO3000 models.
Group
Bus
Syntax
BUS:B<x>:ARINC429A:BITRate {LOW|HI|<NR1>}
BUS:B<x>:ARINC429A:BITRate?
Arguments
LOW sets the ARINC429 bit rate to handle low speed signals (12000
bits-per-second to 14500 bits-per-second).
HI sets the ARINC429 bit rate to handle high speed signals (100,000
bits-per-second)
<NR1> is a bit rate in bits-per-second. You can enter any positive integer, and the
instrument will coerce the value to the closest supported bit rate.
BUS:B<x>:ARINC429A:DATA:FORMAT
Specifies the format of the DATA field in ARINC429 packets on a bus.
Conditions
This command requires installation of a DPO4AERO application module for
MDO4000C models, or MDO3AERO for MDO3000 models.
Group
Bus
Syntax
BUS:B<x>:ARINC429A:DATA:FORMAT {DATA|SDIDATA|SDIDATASSM}
BUS:B<x>:ARINC429A:DATA:FORMAT?
Arguments
DATA sets the ARINC429 DATA field width to 19 bits wide (covering bits 11
through 29 of the 32 bit packet)
SDIDATA sets the ARINC429 DATA field width to 21 bits wide (covering bits 9
through 29 of the 32 bit packet)
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-157
Commands Listed in Alphabetical Order
SDIDATASSM set
s the ARINC429 DATA field width to 23 bits wide (covering
bits 9 through 31 of the 32 bit packet)
Examples
BUS:B1:ARIN
C429A:DATA:FORMAT DATA
sets the ARINC429 DATA field to
19 bits wide.
BUS:B1:ARINC429A:DATA:FORMAT? might return SDIDATASSM, indica
ting
that the ARINC429 DATA field is 23 bits wide.
BUS:B<x>:ARINC429A:POLarity
This command sets the polarity of the ARINC429 bus (normal or inverted).
Conditions
This command requires installation of a DPO4AERO application module for
MDO4000C models, or MDO3AERO for MDO3000 models.
Group
Bus
Syntax
BUS:B<x>:ARINC429A:POLarity {NORMal|I
NVERTed}
BUS:B<x>:ARINC429A:POLarity?
Related Commands
TRIGger:A:BUS:B<x>:ARINC429A:CONDition
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:ARINC429A:CONDition
BUS:B<x>:ARINC429A:SOUrce
Arguments
NORMal - A positive differential pulse in the first half of a bit period that then
returns to zero differential represents a 1 on the differential source.
INVERTed - A positive differential pulse in the first half of a bit period that then
returns to zero differential represents a 0 on the differential source.
Examples
BUS:B1:ARINC429A:POLarity INVERTED sets the polarity so that a positive
differential pulse in the first half of a bit period that then returns to zero differential
represents a 0 on the differential source.
BUS:B1:ARINC429A:POLarity? might return NORMAL.
BUS:B<x>:ARINC429A:SOUrce
This command specifies the source for the differential input for the ARINC429
bus.
2-158 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Conditions
This command re
quires installation of a DPO4AERO application module for
MDO4000C models, or MDO3AERO for MDO3000 models.
Group
Bus
Syntax
BUS:B<x>:ARINC429A:SOUrce
{CH1|CH2|CH3|CH4|MATH|REF1|REF2|REF3|REF4}
BUS:B<x>:ARINC429A:SOUrce?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:ARINC429A:CONDition
BUS:B<x>:ARINC429A:SOUrce
Arguments
CH1-4 specifies an analog channel as the source for the differential input.
MATH specifies the math waveform as the source for differential input.
REF1-4 specifies a reference waveform as the source for differential input.
Examples
BUS:B1:ARINC429A:SOUrce REF4 specifies to use the reference waveform 4
as the source.
BUS:B1:ARINC429A:SOUrce? might return CH2, indicating that channel 2 is
the currently specified source.
BU
S:B<x>:AUDio:BITDelay
Specifies the number of delay bits for the AUDIO bus.
NOTE. This command i s applicable only for TDM audio bus type
(
BUS:B<x>AU Dio:TYPe TDM
)
Conditions
This command requires the DPO4AUDIO application module for the
MDO4000/B/C series, or the MDO3AUDIO for MDO3000 series.
Group
Bus
Syntax
BUS:B<x>:AUDio:BITDelay <NR1>
BUS:B<x>:AUDio:BITDelay?
Arguments
<NR1> specifies the number of delay bits.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-159