User manual

MAUI Oscilloscopes Remote Control and Automation Manual
DDR?
Description
The DDR? query reads and clears the contents of the Device Dependent or Device Specific Error Register
(DDR). In the case of a hardware failure, the DDR register specifies the origin of the failure.
Query Syntax
DDR?
Response Format
DDR <value>
<value>:= 0 to 65535
DDR (Device Dependent) Status Register Structure
Bit Value Meaning
15...14 Reserved.
13 8192 Timebase hardware failure detected.
12 4096 Trigger hardware failure detected.
11 2048 Channel 4 hardware failure detected.
10 1024 Channel 3 hardware failure detected.
9 512 Channel 2 hardware failure detected.
8 256 Channel 1 hardware failure detected.
7 128 External input overload condition detected.
6...4 Reserved.
3 8 Channel 4 overload condition detected.
2 4 Channel 3 overload condition detected.
1 2 Channel 2 overload condition detected.
0 1 Channel 1 overload condition detected.
6-128