What are the differences between pure, valued, and value-only signals used in Safe State Machines (SSMs)?
In an SSM state diagram, a pure signal is simply a Boolean signal. This is the customary signal used in traditional state machines. Its values can be thought of as true/false, high/low, on/off, etc. A valued signal is a combination of two signals, also known as a tuple. The first part of a valued signal is a Boolean value and the second part is a numerical value. This can be thought of as a numerical value with a present/not present status.
