The Auxiliary tab serves mainly to monitor and control the auxiliary
inputs and outputs. Whenever the tab is closed or an additional one of
the same type is needed, clicking the following icon will open a new
instance of the tab.
Table 1: App icon and short description
Controls all settings regarding the auxiliary inputs and auxiliary outputs.
The Auxiliary tab (see Figure 1) is divided into three sections. The
Aux Input section gives two graphical and two numerical monitors for the
signal amplitude applied to the auxiliary inputs on the back panel. In
the middle of the tab the Aux Output section allows to associate any of
the measured signals to one of the 4 auxiliary outputs on the instrument
front panel. With the action buttons next to the Preoffset and Offset
values the effective voltage on the auxiliary outputs can be
automatically set to zero. The analog output voltages can be limited to
a certain range in order to avoid damaging the parts connected to the
Please note the change of units of the scaling factor depending on what
measurement signal is chosen.
Two Aux Output Levels on the right provides 4 graphical and 4 numerical
indicators to monitor the voltages currently set on the auxiliary
Select the signal source to be represented on the Auxiliary Output.
Select the demodulator X component for auxiliary output.
Select the demodulator Y component for auxiliary output.
Select the demodulator magnitude component for auxiliary output.
Select the demodulator phase component for auxiliary output.
Select one of the PID controllers output. MF-PID option needs to be installed.
Select one of the PID controllers' shift signal. MF-PID option needs to be installed.
Select one of the PID controllers' error signal. MF-PID option needs to be installed.
TU Filtered Value
Select one of the Threshold unit input signals after filtering for auxiliary output.
TU Output Value
Select one of the Threshold unit output signals for auxiliary output.
Manually define an auxiliary output voltage using the offset field.
Select the channel according to the selected signal source.
numerical value in signal units
Add a pre-offset to the signal before scaling is applied. Auxiliary Output Value = (Signal+Preoffset)*Scale + Offset
Automatically adjusts the Pre-offset to set the Auxiliary Output Value to zero.
Multiplication factor to scale the signal. Auxiliary Output Value = (Signal+Preoffset)*Scale + Offset
Automatically adjusts the Offset to set the Auxiliary Output Value to zero.
numerical value in Volts
Add the specified offset voltage to the signal after scaling. Auxiliary Output Value = (Signal+Preoffset)*Scale + Offset
-10 V to 10 V
Lower limit for the signal at the Auxiliary Output. A smaller value will be clipped.
-10 V to 10 V
Upper limit for the signal at the Auxiliary Output. A larger value will be clipped.
ON / OFF
Enable Tip Protect unit.
ON / OFF
Select the active level of Source signal.
Select the input source for Tip Protect.
Threshold Unit 1
Output value of the TU logic unit 1.
Threshold Unit 2
Output value of the TU logic unit 2.
Threshold Unit 3
Output value of the TU logic unit 3.
Threshold Unit 4
Output value of the TU logic unit 4.
Signal value written to the Aux Output port when Tip Protect is active. The value overwrites Aux Output Internal value and the Lower and Upper Limits.
-10 V to 10 V
Voltage present on the Auxiliary Output port. The value is obtained by clamping the calculated signal (Signal+Preoffset)*Scale + Offset based on Lower and Upper Limits. It is overwritten when Tip Protect is active.