User manual

RIGOL Chapter 2 Command System
2-24 DS4000E Programming Guide
Return Format
The query returns an integer.
:BUS<n>:RS232:DBITs
Syntax
:BUS<n>:RS232:DBITs <bits>
:BUS<n>:RS232:DBITs?
Description
Sets or queries the data width (namely the actual number of data bits for each frame of data) of RS232
decoding on the specified bus.
Parameter
Name
Type
Range
Default
<n> Discrete {1|2} --
<bits> Discrete {5|6|7|8|9} 8
Return Format
The query returns 5, 6, 7, 8, or 9.
:BUS<n>:RS232:ENDian
Syntax
:BUS<n>:RS232:ENDian <endian>
:BUS<n>:RS232:ENDian?
Description
Sets or queries the bit order of data of RS232 decoding on the specified bus.
Parameter
Name
Type
Range
Default
<n>
Discrete
{1|2}
--
<endian>
Discrete
{LSB|MSB}
LSB
Remarks
 LSB: Least Significant Bit. The transmission sequence shall be is in ascending order.
 MSB: Most Significant Bit. The transmission sequence shall be is in descending order.
Return Format
The query returns LSB or MSB.
:BUS<n>:RS232:OFFSet
Syntax
:BUS<n>:RS232:OFFSet <val>
:BUS<n>:RS232:OFFSet?
Description
Sets or queries the vertical position of TX and/or RX of RS232 decoding on the specified bus.