156 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference
3Commands by Subsystem
:CHANnel<n>:PROTection
(see page 530)
Command Syntax :CHANnel<n>:PROTection[:CLEar]
<n>::={1|2|3|4}
When the analog channel input impedance is set to 50Ω, the input
channels are protected against overvoltage. When an overvoltage condition
is sensed, the input impedance for the channel is automatically changed to
1 MΩ. The :CHANnel<n>:PROTection[:CLEar] command is used to clear
(reset) the overload protection. It allows the channel to be used again in
50Ω mode after the signal that caused the overload has been removed
from the channel input. Reset the analog channel input impedance to 50Ω
(see ":CHANnel<n>:IMPedance" on page 148) after clearing the overvoltage
protection.
Query Syntax :CHANnel<n>:PROTection?
The :CHANnel<n>:PROTection query returns the state of the input
protection for CHANnel<n>. If a channel input has experienced an
overload, TRIP (tripped) will be returned; otherwise NORM (normal) is
returned.
Return Format {NORM | TRIP}<NL>
See Also •"Introduction to :CHANnel<n> Commands" on page 143
•":CHANnel<n>:COUPling" on page 146
•":CHANnel<n>:IMPedance" on page 148
•":CHANnel<n>:PROBe" on page 152