Festo SBO***-Q Series, Руководство пользователя, Страница: 225 / 256

A. Technical appendix
A-43
Festo P.BE-SBO-Q-EN en 1602e
Data types Num­
ber
of
bits Lower limit Upper limit Remarks
Compact
Vision
System IEC
61131-3
double64 LREAL
2)
64 2.2250738e–308 1.7308 64-bit floating point
number, smallest and
largest representable
number in terms of
amount
byte[32]
char[32] STRING(31) n ASCII string
1)
followed by 0x00
à
STRING(31)
occupies 32 bytes in
memory
byte[64]
char[64] STRING(63)
str – Especially for data
output via
EtherNet/IP;
according to
IEC 61131-3
corresponds to
UDINT + STRING
1)
A variable of data type STRING can incorporate any string. The memory space reservation figure in
the declaration relates to characters and can be written in round or square brackets. If no value is
indicated, the default size is 80 characters. The string length is essentially unlimited, but the string
functions can only process lengths of 1-255.
2)
In the current version of the CoDeSys run-time system on the Compact Vision System, the 64-bit
data types are NOT supported (
è
“CoDeSys provided by Festo” online Help [Help] [Content]
“Functional overview” section within the “Target system” description).
Tab. A/15: Data types – comparison
The data types for the Compact Vision System are also used
in the software packages CheckKon and CheckOpti.