PROGRAM PLC_PRG VAR in_byte [...] _VAR erg_byte := SHL(in_byte [...] because BYTE is a bit

作数按位移位（bit shift）的情况下，检测 [...] Temp1 : BYTE; wTemp2 : WORD [...] Temp1 := SHR(byTemp1, BYTE

BYTE 到一个 POINTER TO [...] 25 例外： BOOL <-> BIT 例 [...] Int : POINTER TO INT; byte

: BYTE; END_VAR (*The [...] result in unwanted

access byVar : BYTE [...] ; // statements in the [...] _BLOCK FB //comments in