Bus Trigger - Owon XDS4000 Series User Manual

CH1
CH2
CH3
Input
Mode
CH4
Goes True
Goes False
Is True >
Out Mod
Is True =
Is True <
Auto
Normal
Single
Mode Holdoff
Holdoff
Noise Reject
ON

Bus Trigger

1. UART/RS232 Trigger
UART/RS232 is a serial communication mode used in the data transmission
between PCs or between PC and Terminal. A character is transmitted as a
frame of data which consist of 1bit start bit, 5-8bits data bits, 1bit check bit and
1-2 stop bits.
In UART/RS232 bus trigger mode, the trigger setting information is displayed
on bottom right of the screen, for example,
4.Advanced User Guidebook
Set CH1 as High Level, Low level, high or low
level, Rise and Fall.
Set CH2 as High Level, Low level, high or low
level, Rise and Fall.
Set CH3 as High Level, Low level, high or low
level, Rise and Fall.
Set CH4 as High Level, Low level, high or low
level, Rise and Fall.
：
Note When input mode of one channel is set as
Rise or Fall, the other channel could not be set as
Rise and Fall at the same time.
Trigger when condition turns True from False.
Trigger when condition turns False from True.
Trigger when the time of true condition is greater
than the set time
Trigger when the time of true condition is equal to
the set time
Trigger when the time of true condition is lower
than the set time
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then
stop
100 ns - 10 s, adjust M knob or click
time interval before another trigger occur, press
panel button or click
cursor to choose which digit to be set.
Turn ON/OFF Noise Reject.
（Range 0.3div to10div）
OFF
49
to set
move
,