Systemsoftware
System- and communication configuring D7-SYS - SIMADYN D
2-7
Edition 03.2001
The system chart, in which the behavior/characteristics of the 7-segment
display, acknowledge button etc. is configured, is administered in a newly
created SIMATIC TDC/SIMADYN D program, and may not be deleted.
The sampling time of the system chart is pre-assigned in the factory at
approx. 128 ms.
2.1.2.3 The third step: Checking the configuring
When the hardware configuration has been completed, the configured
data must be verified using a consistency check over the complete
station. The complete hardware configuration is checked using
HWConfig. If the software has bugs or is incomplete, these are displayed
and can be „debugged“ (refer to the Chapter "Configuring example of a
CPU module").
2.1.3 Creating CFC charts
A CFC chart (Continuous Function Chart) is generated using the CFC
editor. This is a configuring tool to describe continuous processes by
graphically interconnecting complex functions in the form of individual
function blocks. Thus, the CFC is used to graphically implement a
technological application by interconnecting and parameterizing function
blocks. For a configuring engineer this means that he can program using
a system which is closely related to block diagrams.
A CFC comprises of several CFC charts, each with 6 sheets. Each sheet
can have a different number of various function blocks. The actual
number is only limited by the graphic layout. In the overview of the CFC
editor, all 6 sheets of a chart are displayed, and in the sheet view, an
individual sheet can be displayed in detail. The function blocks which can
be called-up in the CFC editor are sub-divided into function block classes,
which include the interconnected (associated) functional scope. For
instance, this can include logic blocks, arithmetic blocks etc.. Each
function block class in turn includes a number of various function block
types.
The CFC editor defines the technological configuring by:
•
selecting, interconnecting and parameterizing the configured function
blocks,
•
defining of the sequence characteristics of the function blocks,
•
generating programs to program the CPU memory modules.
2.1.3.1 The first step: Selecting the function blocks
The various function block classes are available in the FBSLIB standard
library. The individual function blocks can be called-up using the CFC
editor, and located on the chart sheets. Individual blocks or block groups
can be subsequently deleted, shifted and copied at any time.
Additional information
For further information on the function blocks refer to the Reference
Manual "SIMADYN D function block library".
SIMADYN D system
chart
Description of the
CFC editor
CFC chart
structure