User manual

Chapter 2 Front Panel Operations RIGOL
DP700 User’s Guide 2-17
Trigger Output
Pin 7 of the RS232 interface on the rear panel is used to output the trigger output
signal. When the channel output is turned on, the high level signal (≥2.1 V, 10 mA) is
output from Pin 7; when off, the low level signal (≤0.7 V, 10 mA) is output from Pin 7.
Operation Procedures:
1. Turn off the instrument. Connect Pin 7 of the RS232 interface on the rear panel
to the signal receiving/display device.
2. Connect the load with the channel output terminals on the front panel.
3. Turn on the instrument. Press System to enter the system utility interface. By
default, the "Setting" tab is selected. Press the Up/Down arrow key to switch the
parameter focus to "Trig Out", and press the Left/Right arrow key or the knob to
enable the trigger output function.
Synchronous Output
When multiple power supplies are in serial or parallel connection, enabling the
external trigger function can realize the synchronous output for multiple power
supplies.
DP700 series power supply provides the following synchronous output modes:
Mode 1:
Take the trigger output signal of one power supply (master device) as the trigger
input signal of the other power supplies (slave devices). In this case, you can press
On/Off on the power supply (master device) to synchronously control the output of
all the power supplies. The following example illustrates the operation steps on how
to synchronously control the other two power supplies through one power supply.
Operation Procedures:
1. Connect Pin 7 (trigger output signal) of the RS232 interface on the rear panel of
Power Supply 1 to Pin 8 (trigger input signal) of the RS232 interface on the rear
panel of Power Supply 2 and 3, as shown in the figure below.
#2 #3
Pin 8
#1
Pin 7
Pin 8