Measuring and Generating Digital Values
Signals that are read or measured are called input signals. Those signals that are generated are called output, or standard output. Some specialized devices also support a Wired-OR output. Refer to the device documentation for more information about the types of input and output the device supports.
This section covers software-timed digital input/output operations—or unstrobed operations. These signals are controlled by software timing.
Measuring and generating digital values are used in a number of applications, including controlling relays and monitoring alarm states. Generally, measuring and generating digital values is used in laboratory testing, production testing, and industrial process monitoring and control.
Creating a Program