_INPUT bTest : BOOL; END_VAR IF bTest THEN

_PRG //Declaration VAR x: INT; bTest [...] < 100 THEN bTest [...] _VAR //Implementation IF bTest THEN

VAR_INPUT bTest : BOOL; END_VAR IF bTest

0021 PROGRAM PLC_PRG VAR dwTest : DWORD; END_VAR dwTest

在这些行中检查，因此 nTest:=DINT#99 [...] -24} nTest := 99; i

PROGRAM Test VAR_TEMP i

Temp : DWORD := 22; dwTest

_OUTPUT test : INT; i : INT [...] test := 0; // +1 END_IF WHILE test = 1 DO