Teledyne SierraNet M408, User Manual, Page: 206 / 248

Teledyne LeCroy InFusion Scenarios
198 SierraNet M408 Protocol Analyzer User Manual
4.6.12 Sequences
The Global Rules are all you need for simple test Scenarios. However, a Scenario also can
contain one or two sequences, which can define multiple states and allow branching
between states. With a sequence, you also can do looping, which allows you to repeat a
test state or to execute a test for a specified period of time.
As with Global Rules, the menu ‐ driven interface guides you in building a sequence. Some
of the prompts are different, however, because you now are encapsulating groups of
Events and Actions as distinct states. Recall that a state is a combination of Events and
Actions at a specific point in time. If the Event or Combined Event defined by a state
occurs, the corresponding Action or set of Actions follows. You can enter multiple
Actions, which take place simultaneously. If one of the Actions is Stop Scenario, the other
Actions are carried out. To stop the Scenario after the requested Actions have been
carried out, you should branch to a new state which stops the Scenario.
InFusion hardware provides the capacity to have up to two sequences co ‐ existing in a
Scenario in addition to the Global Rules. Recall that both the Global Rules and any
sequences are active at all times. Each is a separate “state machine,” having the behavior
of a particular test state at any point in time. Because the Global Rules has the capacity
for only one state, you can view it as a “degenerative state machine.”