Joke Collection Website - Bulletin headlines - What do the symbols in FX series PLC model naming format stand for?

What do the symbols in FX series PLC model naming format stand for?

The meanings of FX series PLC models are as follows:

FX──①──②③

① Series names: 0, 2, 0S, 1S, 0N, 1N, 2N, 2NC, etc.

② Unit type? M basic unit

E- input-output hybrid expansion unit

Front extended input module

Ey- extended output module

③ Output mode? R relay output

S thyristor output

Transistor output