PLC Glossary F-M
False - In logic, the binary state of 0. The opposite of TRUE.
Flash Memory - non-volatile memory usually not requiring battery back-up.
High Speed Counter - allows rapid pulses (pulses that are faster than the PLC scan time) to be counted independently. Used in high speed counting or positioning applications.
Inputs - any switches or sensors connected to the PLC that provide input information.
I/O - shorthand or abbreviation for Inputs and Outputs.
Memory - component of the PLC where data and instructions are stored.