Systemsoftware
2-12
System- and communication configuring D7-SYS - SIMADYN D
Edition 03.2001
Instead of an interconnection, a constant, deviating from the pre-assigned
constant, can be parameterized at each input or output.
A block connection can be designated as parameter using a
pseudocomment.
Additional information
on parameterizing, refer to the Manual "System and Communications
Configuring D7-SYS , Section "Parameterizing SIMATIC TDC/SIMADYN
D"
Interconnecting involves the following:
•
connecting a function block output to another function block input on
the same CPU.
•
connecting a function block output to a run-time group
•
connecting a function block output to a global operand or a global
operand with a function block input. A global operand can be:
−
a name with a "$" dollar symbol as suffix, i. e. connecting a signal
from or to a function block on another CPU.
−
a virtual connection name or a virtual connection, i. e. transferring
process data between function blocks or via any links using the
process data utility.
−
a symbolic hardware address. A hardware address is in this case a
symbolic designation of one or several associated terminals of a
module. For example, binary inputs of a binary input module. The
symbolic hardware address is defined in the HWConfig program
section.
−
a name reference, i.e. the name of a message system
All types of interconnections which leave a chart sheet, generate an
appropriate cross reference at the margin of the CFC chart.
Each function block I/O on the CFC chart can be provided with a
comment text.
There are three pseudo comments, which are identified by the
@ character as suffix and can be separated by blanks in front of the
standard comment text:
1. @DATX
•
The input is connected, bypassing the consistency mechanisms (refer
to the Chapter "Description and use of the signal transfer
mechanisms").
2. @TP_bnnn
•
A connection identified like this can also be addressed as parameter.
(The parameter can be read and changed at the block inputs using
operating control devices and can only be read at the block outputs:
Parameterization
Interconnecting
Comments:
Pseudo comments
