CONSTANT , RETAIN , [...] Variable: VAR [...] between the keywords VAR and END_VAR

_PRG VAR CONSTANT cconst [...] Variable: VAR_GENERIC CONSTANT Generic

RETAIN iVarRetain: INT [...] VAR_GLOBAL RETAIN g_iVarRetain [...] Variable: RETAIN

_GLOBAL PERSISTENT RETAIN and END_VAR [...] Declaring VAR [...] variable list PersistentVars

components like constants [...] . Assignment of a constant [...] Assignment of a non-constant

PROGRAM PLC_PRG VAR [...] ; symbolS : SYMBOL; END_VAR [...] 'qualified_only'} VAR

/var/opt/MyRetain [...] Retain Data [...] of retain data

elements VAR aiCounter : [...] ; END_VAR Lower index [...] -dimensional array VAR ai

Declaration VAR CONSTANT c [...] : CONSTANT Constant [...] . In implementations, constant

CONSTANT , RETAIN , or [...] Variable: VAR [...] between the keywords VAR