转换为UDINT
在本节中：
DWORD_BCD_TO_UDINT
DOUBLE WORD的二进制值至无符号的DOUBLE INTEGER
TRUNC_TO_UDINT
REAL
或
LREAL
输入变量的截断（切断）十进制数，转换为无符号DOUBLE INTEGER
STRING_TO_UDINT
STRING（十进制格式）至无符号的DOUBLE INTEGER
DATE_TO_UDINT
DATE至无符号的DOUBLE INTEGER
DT_TO_UDINT
DATE_AND_TIME至无符号的DOUBLE INTEGER
TOD_TO_UDINT
TIME_OF_DAY至无符号的DOUBLE INTEGER
父主题：
Conversion instructions
