MDO3000 Programmer Manual.pdf - 第707页

Commands Listed in Alphabetical Order Examples SEARCH:SEARCH 1:TRIGger:A:BUS: B1:MIL1553B:COMM AND: SUBADdress “01000” sets the sub-address to b e used in the search to 01000. SEARCH:SEARCH<x>:TRIGger:A:BUS:B <x…

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Commands Listed in Alphabetical Order
OFF sets the val
ue to 0.
ON sets the value to 1.
Examples
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:COMMAND:PARity ZERo
sets the Command word parity bit to 0.
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:COMMAND:PARity?
might return 0, 1 or X.
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:SUBADdress
When the MIL-STD-1553 bus search condition is set to COMMAND, this command
specifies the 5 bit sub-address that is to be used in the search. When the
sub-address value is set to 00000 or 11111 binary, it specifies that the command is
a “Mode Code” command. Any other value specifies that it is a “Word Count”
command. The default is all X’s (don’t care).
SEARCH<x> is the search number,
whichisalways1,and
B<x>
NOTE. The sub-address field is used to direct data to different functions within the
subsystem for values 1 — 30.
Conditions
This command requires a DPO4AERO application module for DPO/MSO4000B
and MDO4000/B/C models or MDO3AERO application module for
MDO3000 models.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:
SUBADdress <QString>
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:
SUBADdress?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:
COUNt
Arguments
QString is a quoted string of up to 5 characters, where the allowable characters are
0, 1, and X.
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Commands Listed in Alphabetical Order
Examples
SEARCH:SEARCH
1:TRIGger:A:BUS:B1:MIL1553B:COMMAND:
SUBADdress “01000”
sets the sub-address to be used in the search to 01000.
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:TRBit
When the MIL-STD-1553 bus search condition is set to COMMAND, this command
specifies that the transmit/receive bit (bit 9) is to be used in the search. The
transmit/receive bit defines the direction of information flow, and is always from
the point of view of the remote terminal.
SEARCH<x> is the search number, which
is always 1, and
B<x>
Conditions
This command requires a DPO4AERO application module for DPO/MSO4000B
and MDO4000/B/C models or MDO3AERO application module for
MDO3000 models.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:TRBit
{RX|TX|X}
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:TRBit?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition
SEARCH:SEARCH<
x>:TRIGger:A:BUS:B<x>:MIL1553B:COMMAND:
COUNt
Arguments
RX (logic 0) di
rects the instrument to search for a TX or "transmit" from a remote
terminal .
TX (logic 1) directs the instrument to search for an RX or "receive" from a remote
terminal.
X indicates “don’t care".
Examples
TRIGger:A:BUS:B1:MIL1553B:COMMAND:TRBit TX directs the instrument to
search for a TX or “transmit” from a remote terminal.
TRIGger:A:BUS:B1:MIL1553B:COMMAND:TRBit TX? might return TX.
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition
This command specifies a word type or condition within a MIL-STD-1553 bus
word to search for.
SEARCH<x> is the search number, which is always 1, and B<x>
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-677
Commands Listed in Alphabetical Order
NOTE. There are
three types of MIL-STD-1553 (Aircraft) bus words: Command,
Status, and Data, all sharing a common structure twenty bits in length. The first
three bits are used as a synchronization field. The last bit is the odd parity of the
previous 16 bits.
Conditions
This command requires a DPO4AERO application module for DPO/MSO4000B
and MDO4000/B/C models or MDO3AERO application module for
MDO3000 models.
Group
Search
Syntax
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition
{SYNC|COMMAND|STATus|DATA|TIMe|ERRor}
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition?
Related Commands
Most of the other SEARCH:SEARCH1:TRIGger:A :BUS:B<x>:MIL1553B
commands are impacted by the setting of this command.
TRIGger:A:BUS:B<x>:MIL1553B:CONDition
BUS:B<x>:MIL1553B:SOUrce
Arguments
SYNC refers to the 3–bit sync pulse that precedes each word.
COMMAND is one of 3 16–bit word types. It specifies the function that a remote
terminal is to perform.
STATus is one of 3 16–bit word types. Remote terminals respond to valid message
transmissions via status words.
DATA is one of 3 16–bit word types.
TIMe specifies to search for either the RT (remote terminal response
time), or the IMG (Inter-message Gap). Use the commands SEARCH:
SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:TIMe:QUALifier, SEARCH:
SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:TIMe:LESSLimit,and
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:TIMe:MORELimit
to specify the time parameters.
ERRor specifies to search for a signaling error. (You can specify which type of error
— Parity, Sync, Manchester or Non-contiguous Data — by using the command
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:ERRTYPE.)
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