Agilent Technologies 81104A - Warning and Error Reporting Example

108
Using the 81110A/81104A
W
WW
Wa
aa
ar
rr
rn
nn
ni
ii
ing
ngng
ngs
s s
s a
aa
an
nn
nd
d d
d E
EE
Err
rrrr
rro
oo
or
rr
rs
ss
s
N
NN
NO
OO
OTE
TETE
TE You can press SHIFT + HELP (AUTOSET) to carry out an autoset. The
instrument resets all parameters, based on the current period setting, to
remove all warning and error conditions.
Warning and Error Reporting Example
1
Switch on the instrument and recall the standard settings by pressing
S
HIFT
+ R
ECALL
/ S
TORE
+ 0.
The period is now set to 1 µs.
2
Switch on output 1 by pressing S
HIFT
+ ON/OFF 1 / 0.
3
On the Timing or Output 1 screen, move the parameter cursor to the
value of the W
IDTH
parameter (100
NS
).
4
Use the knob to make the W
IDTH
as large as possible (approximately
940
NS
).
This limit is intended to guarantee that the actual output pulse is
within specifications, for the actual period.
The limit is calculated taking into account a worst case combination
of minimum period from the period setting (1 µ
S
) and maximum
width from the width setting (940
NS
) together with minimum leading
and trailing edge settings (for example, 2.00
NS
).
N
NN
NO
OO
OTE
TETE
TE Note that if you now cannot modify the current setting of the leading
edge (for example, 2.00 ns) with the knob. This is because the upper and
lower warning limits are currently 2.00 ns. The width is at its maximum
value and width+leading edge+trailing edge <
period.
5
Press S
HIFT
and adjust the Width above its warning limit. A flashing W
appears to indicate that a warning condition has occurred.
N
NN
NO
OO
OTE
TETE
TE Note that as long as no errors occur, the output hardware is set up and
attempts to generate the required output.
6
Press H
ELP
to see the warning message:
T
RAILING EDGE
1
MAY CUT NEXT PULSE
7
Press H
ELP
again to return to the Width parameter.