Communications configuring
System- and communication configuring D7-SYS - SIMADYN D 3-271
Edition 12.2003
and the sequence number does not have to be configured as it is
automatically generated).
Virtual connections can be configured at I/O with the following data types:
• BOOL (BO), BYTE (BY)
• WORD (W), DOUBLE WORD (DW)
• INTEGER (I), DOUBLE INTEGER (DI)
• REAL (R) and SDTIME (TS)
NOTE
Virtual connections cannot be configured at I/O, data types STRING (S)
or GLOBAL VARIABLE (GV).
The virtual connections with the same connection name (data) define a
telegram with a specific structure. The sequence of the data within the
telegram is defined by the sequence number. The data with the lowest
number is located at the start of the telegram; that with the highest
number, at the end. The sequence number defines the relative position of
the data in the telegram. Gaps in the sequence numbers are ignored.
Data types
Telegram structure
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