_INPUT CONSTANT udiSize : UDINT [...] _INPUT CONSTANT udi

_GLOBAL CONSTANT gc [...] _VAR // Constant as index i

CONSTANT c [...] _GLOBAL CONSTANT CAN

qualifier> 类型限定符 CONSTANT [...] CONSTANT RETAIN [...] '} VAR_GLOBAL CONSTANT

_only'} VAR_GLOBAL CONSTANT

_GLOBAL CONSTANT 块。因此，如果

CONSTANT c

导出（无结构） CONSTANT

CONSTANT // The length

_only'} VAR_GLOBAL CONSTANT