MDO3000 Programmer Manual.pdf - 第222页
Commands Listed in A lphabetical Order BUS:B<x>:RS2 32C:DELIMiter This command specifies the delimiting v alue for a packet on the RS-232 bus. Conditions This command requires a DPO4COMP application module for 4000 …
Commands Listed in Alphabetical Order
Group
Bus
Syntax
BUS:B<x>:POSition <NR3>
BUS:B<x>:POSition?
Argume
nts
<NR3> is a floating point number that specifies the position of the bus <x>
waveform on the display.
BUS:B<x>:RS232C:BITRate
This
command specifies the bit rate for the RS-232 bus.
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:BITRate <NR1>
BUS:B<x>:RS232C:BITRate?
Arguments
<NR1> is the 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>:RS232C:DATABits
This command specifies the number of bits in the data frame for the RS-232 bus.
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:DATABits {7|8|9}
BUS:B<x>:RS232C:DATABits?
Arguments
7 specifies seven bits in the RS-232 data frame.
8 specifies eight bits in the RS-232 data frame.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-191
Commands Listed in Alphabetical Order
BUS:B<x>:RS2
32C:DELIMiter
This command specifies the delimiting value for a packet on the RS-232 bus.
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:DELIMiter {NULl|LF|CR|SPace|XFF}
BUS:B<x>:RS232C:DELIMiter?
Arguments
NULl specifies 0x00.
LF specifies 0x0A.
CR specifies 0x0D.
XFF specifies 0xFF.
BUS:B<x>:RS232C:DISplaymode
This command specifies the display mode for the RS-232 bus (frame or packet).
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:DISplaymode {FRAme|PACKET}
BUS:B<x>:RS232C:DISplaymode?
Arguments
FRAme displays each frame as a single entity.
PACKET displays a group of frames terminated with a single frame defined by the
BUS:B<x>:RS232C:DELImiter command or the front panel.
BUS:B<x>:RS232C:PARity
This command specifies the parity for the RS-232C bus.
2-192 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Conditions
This command re
quires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:PARity {NONe|EVEN|ODD}
BUS:B<x>:RS232C:PARity?
Arguments
NONe specifies no parity.
EVEN specifies even parity.
ODD specifies odd parity.
BUS:B<x>:RS232C:POLarity
This command specifies the polarity for the RS-232C bus.
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an MDO3COMP application module for MDO3000 series models.
Group
Bus
Syntax
BUS:B<x>:RS232C:POLarity {NORMal|INVERTed}
BUS:B<x>:RS232C:POLarity?
Arguments
NORMal sets the polarity to positive.
INVERTed sets the polarity to negative.
BUS:B<x>:RS232C:RX:SOUrce
This command specifies the RX source waveform for the RS-232 bus.
Conditions
This command requires a DPO4COMP application module for 4000 series
models, and an M
DO3COMP application module for MDO3000 series models.
Group
Bus
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-193