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Upon a double-click on a step, a screen opens in which the respective action of the step is
included.
Abbildung 59:
Figure 59:
Sequential function charts with opened steps
10.7
Definition of inputs and outputs
• Select tab „Resources“
• Select „global variables“ and then „Ein_Ausgänge“
• The inputs and outputs are defined as bits in the respective words of the process
image
Step
Main
Block START_STOP
Evaluation of the system variables for Start and
Stop
Block M_FUNCTIONS
Editing of the M-function
Block
RELEASE_SIGNAL_HAN
DLER
Enabling of the system variant,
Evaluation of the input „Emergency stop cir-
cuit“ (I_NoEStop)
Transition
False
No switching to the next step, since FALSE.
The program remains in step „Main“
Element
Name
contents of the
element
Comment
Table 47:
Elements of the sequential function chart
