Agilent Technologies InfiniiVision 4000 X-Series Programmer's Manual page 217

:OVLRegister (Overload Event Register)
Query Syntax
:OVLRegister?
The :OVLRegister query returns the overload protection value stored in the
Overload Event Register (OVLR). If an overvoltage is sensed on a 50
input, the input will automatically switch to 1 M
indicates an overload has occurred.
You can set analog channel input impedance to 50 on the 300 MHz, 500 MHz, and 1 GHz
N O T E
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 .
Table 81 Overload Event Register (OVLR)
Bit
15-10
9
8
7
6
5-4
3
2
1
0
Return Format
<value><NL>
Agilent InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide
(see page 1208)
Chan4 Chan3
Fault Fault
15 14 13 12 11 10 9 8
OR
To OVLR bit in
Operati on Status
Register
Description
---
Channel 4 Fault
Channel 3 Fault
Channel 2 Fault
Channel 1 Fault
---
Channel 4 OVL
Channel 3 OVL
Channel 2 OVL
Channel 1 OVL
Chan2 Chan1 Chan4 Chan3 Chan2 Chan1
Fault Fault OVL OVL OVL
7 6 5 4 3 2 1
When Set (1 = High = True), Indicates:
(Not used.)
Fault has occurred on Channel 4 input.
Fault has occurred on Channel 3 input.
Fault has occurred on Channel 2 input.
Fault has occurred on Channel 1 input.
(Not used.)
Overload has occurred on Channel 4 input.
Overload has occurred on Channel 3 input.
Overload has occurred on Channel 2 input.
Overload has occurred on Channel 1 input.
Root (:) Commands
input impedance. A "1"
:OVLR?
Overload Event Register
OVL
0
:OVL
:OVL?
Overload Event Enable
(Mask) Register
6
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