Rs232 Trigger (Option) - Rigol MSO5000-E Series User Manual

RIGOL
displayed at the upper-right corner of the screen.
Note: Only when we select the channel (that has been input with signals) as the
trigger source, can we obtain a stable trigger.
Edge Type:
Press Slope continuously to select the input signal edge on which the oscilloscope
triggers.
Rising: triggers on the rising edge of the input signal when the voltage level
⚫
meets the specified trigger level.
Falling: triggers on the falling edge of the input signal when the voltage level
⚫
meets the specified trigger level.
Idle Time:
Press Idle to set the idle time before the edge counting in Nth edge trigger. Rotate
the multifunction knob
Edge Count:
Press Edges to set the value of "N" in Nth edge trigger. Rotate the multifunction
knob or use the pop-up numeric keypad to set the edge count. Its available
range is from 1 to 65535.
Trigger Mode:
In the trigger control area (Trigger) on the front panel, press Mode to quickly switch
the current trigger mode. For details, refer to descriptions in "Trigger Mode".
Trigger Parameter Setting:
Set the trigger parameter (noise rejection) under this trigger type. For details, refer
to descriptions in "Noise Rejection".
Trigger LEVEL/Threshold Level:
Rotate the Trigger
to "Trigger LEVEL/Threshold Level". The current trigger level/threshold level
value is displayed at the upper-right corner of the screen.

RS232 Trigger (Option)

RS232 bus is a serial communication mode used in data transmission between PCs or
between a PC and a terminal. In RS232 serial protocol, a character is transmitted as
a frame of data. The frame consists of 1 start bit, 5-8 data bits, 1 check bit, and 1-2
stop bits. Its format is as shown in the figure below. MSO5000-E series oscilloscope
triggers when the start frame, error frame, check error, or the specified data of the
RS232 signal is detected.
5-32
or use the pop-up numeric keypad to set the idle time.
LEVEL knob to adjust the trigger level/threshold level. Refer
Chapter 5 To Trigger the Oscilloscope
MSO5000-E User Guide