User Manual SM6026
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4.1.5
BUS MODE (Reserved function)
This mode is used to select RS232C, GPIB, LAN, USBTMC or USBCDC.
Operation steps for setting bus mode
:
1) Move the cursor to BUS, the following soft keys will be displayed.
RS232C
GPIB
LAN
USBTMC
USBCDC
2) Use above soft keys to select the required interface bus.
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Note
: GPIB optional must be installed before GPIB mode is available.
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4.1.6
GPIB ADDR (Reserved function)
This zone is used to control and display the current GPIB address.
Operation steps for setting GPIB address
:
1) Move the cursor to GPIB ADDR, the following soft keys will be displayed.
↑
（
+
）
This soft key is used to increase the GPIB address.
↓
（
-
）
This soft key is used to decrease the GPIB address.
4.1.7
TALK ONLY
The Talk only function is used to control the instrument to send each measurement result to bus through
its interface of RS232C, GPIB, LAN, USBTMC or USBCDC. When the talk only function is ON, the
instrument cannot be controlled by PC.
Operation steps for setting the talk only function
1) Move the cursor to TALK ONLY, the following soft keys will be displayed.
ON
OFF
2) Press ON to turn on the talk only function or OFF to turn off this function.
4.1.8
BIAS SRC
Bias source is used to select the DC bias power. The instrument provides 3 kinds of bias source as
shown below:
INT mode
The standard DC bias voltage source is from -10V to +10V and the DC bias current source is from 0 to
100mA.
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NOTE: When the DC bias source is in use, only the output impedance of 100Ω can be used.
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