Tabor Electronics 5251, Руководство пользователя

Страница: 213 / 298

4
Remote Programming Reference
Auxiliary Commands
4-79
proportional to the gating time, the number of displayed
digits decreases proportionally to the pulse width of the
signal. The best resolution in period measurements is 10
ns.
GTOTalize Discrete Will select the gated totalize measurement function. In
this mode, the gate opens when the first valid signal is
sensed at the counter input and closed at the end of the
gate time interval. The number of pulses that enter during
the gate time interval is displayed until cleared and the
counter is armed for the next measurement cycle. The
counter can accumulate 8 digits before it will overflow. An
overflow indication is available.
ITOTalize Discrete Will select the totalize measurement function. In this
mode, the gate opens when the first valid signal is sensed
at the counter input and remains open until programmed
otherwise. Pulse are counted and displayed continuously
until intervened externally. The counter can accumulate 8
digits before it will overflow. An overflow indication is
available.
Response
The 5251 will return FREQ, PER, APER, PULS, GTOT or ITOT depending on the present measurement
function setting.
COUNter:DISPlay:MODe{NORMal|HOLD(?)
Description
This command will program the display time mode for the counter/timer. The two modes are normal for
continuous display readings and hold for single reading after arming the counter input.
Parameters
Name Type Default Description
NORMal Discrete NORM Will select the continuous reading mode. In this case, the
counter input is self-armed, which means that every valid
signal that is sensed at the trigger input connector will be
counted and measured processed and results placed on
the interface port.
HOLD Discrete Will select the single reading mode. In this case, the
counter input is armed first and the first valid signal that is
sensed at the trigger input connector will be counted and
measured and its result processed and placed on the
interface port.
Response
The 5251 will return NORM, INV or COMP depending on the present polarity setting
COUNter:GATe<interval>(?)