Temp:POINTER TO INT; sTemp:STRING [...] VAR_GLOBAL iTemp:INT [...] _VAR FUNCTION_BLOCK POU VAR a:INT
3 : REFERENCE TO INT; i [...] 8 : REFERENCE TO INT; var [...] ： POINTER TO <basic type
_VAR //Implementation FUN := LREAL_TO_INT [...] 1 : INT VAR_INPUT a,b : INT; END_VAR VAR c
