Bnc 725 Manuel d'utilisateur télécharger pdf (Page 25)

Timing Modes

In the previous section you learned that logic defines how channels are triggered. In this section

you’ll use the Model 725 timing modes to determine how the channels will respond.

Each channel can be configured to operate in one of eight modes:

- Fixed output

- Output=Input (Passive Mode)

- Delayed Pulse After Trigger

- Clocked Pulse Stream

- Validated Trigger Input (Noise Suppression)

- Dynamically Delayed Pulse

- Timer

- Toggled Output.

When a timing mode is selected, the relevant property tabs will be displayed.

NOTE: All timing property tabs include a space for Notes. These notes are saved and

appear in the Main Screen program summary area. It is good practice to document your

settings extensively. As with all programming, good documentation will simplify the process

of creating, debugging and running your experiments.

For each timing mode you’ll be able to set up a simple example to view the output of the channel.

To set up for the experiments later in this section:

1. Make sure that the Model 725 is connected to the PC.

2. Plug a normally open push-button trigger switch into Input 1. The button will represent our

triggering “event.”

3. Open Channel A’s Setting screen, and select the Delayed pulse after trigger timing mode

(you’ll learn about Delayed Pulse After Trigger mode shortly).

4. Select the Logic tab. Enter the logical assignment:

inA = not in1;

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Bnc 725 Manuel d'utilisateur Page 25