Panasonic AFPG951T34, Руководство пользователя

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Appendix
FP Σ User's Manual
304
12.9 Data Types
FPWIN Pro provides elementary and user defined data types.
Elementary data types
Data Type Abbreviation Description Range
BOOL BOOL Boolean (1 bit) 0 (FALSE) or 1 (TRUE)
INTEGER INT Integer (16 bits) -32768–32767
UNSIGNED INTEGER UINT Unsigned integer (16 bits) 0–65535
DOUBLE INTEGER DINT Double integer (32 bits) -2147483648–2147483647
UNSIGNED DOUBLE
INTEGER
UDINT
Unsigned double integer (32
bits)
0–4294967295
REAL REAL Real number (32 bits)
-3.402823E
38
– -1.17549410E
-38
,
0, +1.17549410E
-38
–
+3.402823E
38
WORD WORD Bit string of length 16 (16 bits) 16#0–16#FFFF
DOUBLE WORD DWORD Bit string of length 32 (32 bits) 16#0–16#FFFFFFFF
TIME
1)
TIME Duration (32 bits)
T#0s–
T#248d3h13m56s470ms
DATE AND TIME
1)
DT Date and time of day (32 bits)
DT#2001-01-01-00:00:00–
DT#2099-12-31-23:59:59
TIME OF DAY
1)
TOD Time of day (only) (32 bits)
TOD#00:00:00–
TOD#23:59:59
DATE
1)
DATE Date (only) (32 bits)
DT#2001-01-01–
DT#2099-12-31
STRING
1)
STRING Variable-length character string Depending on PLC type
ARRAY ARRAY
Number of similar data
elements
Depending on PLC type
A data type has to be assigned to each variable.
1)
Internal representation of time and string data types
TIME In 10ms units
DATE AND TIME Seconds after DT#2001-01-01-00:00:00
TIME OF DAY Seconds after TOD#00:00:00
DATE Seconds after DT#2001-01-01
STRING Header with maximum and current number of characters followed by the characters
User defined data types
We differentiate between array and D ata U nit T ypes (DUT). An array consists of several
elementary data types which are all of the same type. A DUT consists of several elementary
data types of different types. Each represents a new data type.