Changeover from STRUC V4.x to D7-SYS
4-2
System- and communication configuring D7-SYS - SIMADYN D
Edition 03.2001
4.1 Function
blocks
The following essential features have changed with the introduction of
SIMADYN D7-SYS from STRUC Version 4.x.
•
16-bit function blocks are no longer used
•
Assigning names to function blocks and their connections
•
Function block names/designations
•
DATX attributes have been adapted
•
Data types of function blocks have been modified
4.1.1 Assigning names to function block types and connections
The philosophy for assigning names to function block types is that the
abbreviations are observed which are allocated by the CFC. The function
block type designations are oriented to easy to remember rules.
The maximum length of a block type name is 6 characters. The basic
name of the function block type is generally three characters long. An
extension can be used for derivatives.
Function block types without extension have the standard data type
„Real“ e. g. PWM instead of PWM_R. The logic block types are the
exception. These have the standard data type „Bool“ e. g. OR instead of
OR_B.
NOTE
The "standard data type" term refers to the "main function" of the
function block types.
For versions with other data types, this is noted in the "extension" (e. g.
AND_W for an AND module type with WORD data type connections).
The extension is normally one character long.
Data type
BOOL
INTEGER
DOUBLE
INTEGER
REAL
SDTIME
*
WORD
STRING
**
GLOBAL
**
Extension
*_B
*_I
*_D
*_R
*_T
*_W
*_S
*_G
* SIMADYN D TIME
** At the time of going to print, these data types had still not been used.
Table 4-1
Data type extensions
The byte and double-word data types are an exception. In order that they
can be uniquely identified, they are defined using two characters (refer to
the Section "Changing the data types for function blocks").
