multicomp pro MP720021, Manual

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User Manual
49
Input Mode
CH1
CH2
CH3
CH4
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.
Out Mod
Goes True Trigger when condition turns True from False.
Goes False Trigger when condition turns False from True.
Is True >
Trigger when the time of true condition is greater than
the set time
Is True =
Trigger when the time of true condition is equal to the
set time
Is True <
Trigger when the time of true condition is lower than
the set time
Mode
Holdoff
Auto
Normal
Single
Holdoff
Reset
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 rotary control or click to
set time interval before another trigger occur, press
panel button or click move cursor
to choose which digit to be set.
Set Holdoff time as 100 ns
Bus Trigger
1. RS232 Trigger
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 RS232 bus trigger mode, the trigger setting information is displayed on bottom
right of the screen, for example,
，
indicates that trigger type
is RS232, CH1 trigger level is 0.00mV.