Omron G9SP-N20S Operation Manuals page 25

Acronyms
Acronym
MC
Si
So
To
Memory Cassette.
Safety Input.
An input from a Safety Input terminal. This term is used to differentiate from a
Standard Input (IN).
Safety Output.
An output from a Safety Output terminal. This term is used to differentiate from
a Standard Output (OUT).
Test Output.
An output from a Test Output terminal used to diagnose a Safety Input terminal
by outputting a test pulse.
Meaning
xxv