YOKOGAWA FG420 - Page 112

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IM FG410-01EN
4. BASIC OPERATION
r) Tosubstitutecentervaluetomarkervalue,orsubstitute marker value to center value
When the [Ctr
Mkr] soft key on the 2nd page of the setting screen is pressed, the center value
is substituted to the marker value. When the [Mkr Ctr] soft key is pressed, the marker value is
substituted to the center value.
When these soft keys are not displayed on the 2nd page of the setting screen, press the
[▼1/2] soft key on the right end to switch the soft key sets.
s) Tocontrolsweepstart,stop,andpausewithexternallogicsignal
When [ExtCtrl] (external control) on the 3rd page of the setting screen is set to [Enable], sweep
manipulation through TTL level logic input to the multi-I/O connector on the rear panel can be done.
This applies in common to CH1 and CH2.
To prevent malfunction due to external noise, it is recommended to set [Disable] (disable) when not
using control with an external signal.
For the pin number allocation,

p.20 .
The following manipulations can be done.
 Sweepstart
If sweep operation is currently stopped, the sweep operation starts from the beginning upon input
of a falling edge.
During sweep execution, the sweep operation is resumed from the beginning upon input of a
falling edge.
During single-shot sweep and gated single-shot sweep, the sweep operation starts from the
beginning if a trigger other than this signal is received. ORing with the set trigger source is done.
 Sweepstop
The sweep operation stops upon input of a falling edge during sweep execution, and the state
becomes the sweep start value output state.
However, during single sweep and gated single sweep, the sweep operation starts again from the
beginning upon receipt of a new trigger.
 Sweephold/resume
The sweep operation is held upon input of a falling edge during sweep execution. The sweep
operation resumes from where it was held upon input of a rising edge during hold.
However, during single-shot sweep and gated single-shot sweep, the sweep operation starts again
from the beginning upon receipt of a new trigger during hold.