BNC 6040 - Manual (Page 25)

25
OPERATING INFORMATION
Parameter Scanning
The second method of altering a parameter is incremental. First display the desired parameter. Then
choose the desired digit with the cursor using the left { } and right { } keys. Once the digit is selected,
the increment { } and decrement { }
keys allow the incremental modification of the existing value.
In addition, the value will be multiplied (or divided) by ten if the left (or right) key is pressed when the
cursor is located at the most (or least) significant digit. This simulates the vemiered tuning and range
switch associated with analog pulse generators.
If an attempt is made to scan a parameter outside the range of acceptable values, a display of "Range
Error" will remain until the scan key is released, at which time the parameter's value is again displayed.
EXAMPLE: The user could modify the Delay parameter as follows.
Key Hit: Display: Comments:
{TIMING} <Delay: 1.2340 ms > Display previous Delay parameter
{ } <Delay: 2.2340 ms > Increment Delay
{ } <Delay: 22.340 ms > Multiply Delay by 10
{ } <Delay: 223.40 ms > Multiply Delay by 10
{ } x 4 <Delay: 223.40 ms > Move cursor right (asserting { } 4
times)
{ } <Delay: 223.32 ms > Decrement Delay
{ } <Delay: 22.332 ms > Divide Delay by 10
Saving the Panel Setting in Memory
All plug-in modules are equipped with a nonvolatile memory. This allows the user to store ten complete
instrument settings. Included in each of these are all the parameter values (whether active or not) for
the Mode, Trigger, Timing and Level menus as well as which menu selections are currently in effect.
These memories are accessed by the STORE and RECALL keys.
To save the present panel state, press STORE followed by the digit key for the memory location
desired. To retrieve a previously saved panel stale, press RECALL, followed by the digit key of the
desired memory. (Note that the ENTER and EXEC keys are not used.)
The GPIB/RS-232 menu parameters are not accessed or retrieved by STORE and RECALL. Instead,
the most recent setting for each selection on the GPIB/RS-232 menu is automatically stored in the
module. These go into effect as soon as the instrument is turned on (with the module plugged in).