Keysight B2900 Series Triggering System

Operational "How to" Guides. An explanation of the B2900 Series Triggering System. The B2900 series is designed to allow advanced, layered triggering schemes with independent sourcing and measuring. There are three separate layers in the system: Arm, Trigger, and Action. Think of the Arm layer as a conditional statement which will allow the Trigger layer to trigger. These conditions can be accepting an external trigger, pressing the trigger button, receiving a bus trigger, or arming off of a timer to name a few. The condition for the Arm layer needs to be met in order to move to the Trigger layer. The same is true when moving from the Trigger to the Action. The Action layer is where the measurement is performed, the signal is sourced, or both. The source and the measurement each have their own trigger systems as does each channel. Under the trigger configuration dialog box, the source is called "Transient" under the device action selection whereas the measurement is called "Acquisition". Since they are separate systems, both the Transient and the Acquisition need to configured for each layer as well as each channel.  To demonstrate how these layers can be used, here is an example of a system that will trigger five pulses 5ms apart and take a single measurement point at each. To get to the trigger configuration dialog box, press the Trigger key on the bottom menu bar, then select Config. These are the settings in the trigger configuration dialog box after the pulse has been set up in the Show Pulse menu:   Select the correct channel (1 or 2) Layer = Arm-- Count = 5 -- Source = TIMER -- Period = 5msLayer = Trigger -- Count = 1 -- Source = AUTO. Duplicate the settings for both Transient and Acquisition device actions. On the Acquisition layer, set a trigger delay of 2ms, Press OK, Turn channel on with ON/OFF hard key, Press the Trigger hard key to initiate   The trigger delay is important to add on the Acquisition layer in order to position the measurement near the middle of the pulse. It's also helpful in avoiding any overshoot after the rising edge at the beginning.