Instructions

Circuit program development
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Fig. 7.16
Example:
A constant value 1 is transferred to the input I1 of the addition block ADD (Integer). A
value from the block output (Q) calculated in the previous cycle is transferred to the input
I1 over delay line.
Fig. 7.17
Table 7.2 Cycle signal values
Cycle
1
2
3
4
5
6
7
8
9
10
I2
0
0
1
1
2
2
3
3
4
4
Q
1
1
2
2
3
3
4
4
5
5
7.6 Network data exchange
The network input and output variables are special type of variables for data exchange
between devices connected to a common network.
The variables can be read via the network are called Network output variables ( ).
The variables can be written via the network are called Network input variables ( ).
To add a network variable to the program proceed as follows:
 Click the icon or in the toolbar Insert (Table 2.6).
 Click the workspace to insert the variable.
 Click the icon in the row Variable in Property Box to select a variable for the
block.
Fig. 7.18
 Select a variable or create a new one in the opened variable table and confirm
with OK. The selected variable is assigned to the variable block.