Technical data

Commands by Subsystem 5
Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide 181
:OVLenable (Overload Event Enable Register)
(see page 798)
Command Syntax
:OVLenable <enable_mask>
<enable_mask> ::= 16-bit integer
The overload enable mask is an integer representing an input as described
in the following table.
The :OVLenable command sets the mask in the Overload Event Enable
Register and enables the reporting of the Overload Event Register. If an
overvoltage is sensed on a 50
Ω input, the input will automatically switch
to 1 M
Ω input impedance. If enabled, such an event will set bit 11 in the
Operation Status Register.
NOTE
You can set analog channel input impedance to 50Ω on the 300 MHz, 500 MHz, and 1 GHz
bandwidth oscilloscope models. On these same bandwidth models, if there are only two
analog channels, you can also set external trigger input impedance to 50
Ω.
98101112131415
To OVLR bit in
O pe ration Status
Register
+
OR
10234567
:OVLR?
Overload Event Register
:OVL
:OVL?
Overload Event Enable
(Mask) Register
Chan2
OVL
Chan1
OVL
Chan3
OVL
Chan4
OVL
Ext Trig
OVL
Chan2
Fault
Chan1
Fault
Chan3
Fault
Chan4
Fault
Ext Trig
Fault
Table 54 Overload Event Enable Register (OVL)
Bit Description When Set (1 = High = True), Enables:
15-11 --- (Not used.)
10 External Trigger Fault Event when fault occurs on External Trigger input.
9 Channel 4 Fault Event when fault occurs on Channel 4 input.
8 Channel 3 Fault Event when fault occurs on Channel 3 input.