MDO3000 Programmer Manual.pdf - 第709页

Commands Listed in Alphabetical Order NOTE. Use the SEARCH:SEA RCH 1:TRIGger:A:BUS: B<x>:MIL1553B:CO NDition:STAT us: BIT commands to set the following bits: 9 — message error SEARCH:SEARCH<x>:TRIGger:A:BUS:B…

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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.)
2-678 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
NOTE. Use the
SEARCH:SEA RCH1:TRIGger:A:BUS:B<x>:MIL1553B:CONDition:STAT us:BIT
commands to set the following bits:
9 — message error
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:ME
10 — instrumentation
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:INSTR
11 — SRQ (service request)
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:SRQ
15 — BCR (broadcast command received)
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:BCR
16 — busy
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:BUSY
17 — subsy stem flag
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:SUBSF
18 — DBCA (dynamic bus control acceptance)
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:DBCA
19 — terminal flag
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:STATus:BIT:TF
Examples
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:CONDition STAT sets
the word type to search for to
STATus.
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:CONDition? might
return DATA.
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:PARity
When the MIL-STD-1553 bus search condition is set to DATa, this command
specifies the data parity bit to be used in the search. Returned values are 0, 1, or X
(don’t care).
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
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-679
Commands Listed in Alphabetical Order
Syntax
SEARCH:SEARCH
<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:PARity
{0|1|X|ZERo|ONE|NOCARE|OFF|ON}
SEARCH:SEARC
H<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:PARity?
Related Commands
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:CONDition
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:VALue
Arguments
0
1
X
sets the valu
e to X (“don’t care”) which is the default.
ZERO sets the value to 0.
ONE sets the value to 1.
NOCARE sets the value to X (“don’t care”) which is the default.
OFF sets the value to 0.
ON sets the value to 1.
Examples
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:DATa:PARity 1 sets the
dataparitybittobeusedinaMIL-STD-1553bussearchto1.
SEARCH:SEARCH1:TRIGger:A:BUS:B1:MIL1553B:DATa:PARity? might
return 0, indicating that the data parity bit to be used in a MIL-STD-1553 bus
search is set to 0.
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:VALue
When the MIL-STD-1553 bus search condition is set to DATa, this command
specifies the data binary pattern to be used in the search. This is a 16-bit field.
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:DATa:VALue
<QString>
SEARCH:SEARCH<x>:TRIGger:A:BUS:B<x>:MIL1553B:DATa:VALue?
2-680 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual