Festo FB16, Электронное руководство

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Addressing example
The following illustrations show as an example
the concrete addressing of the valve terminal
fitted in the standard manner from chapter 4.1.
The following assumptions have been made:
I/O tables, fixed in the configuration editor:
•
Output tabulation words: %MW1200(0..7)
•
Input tabulation words: %MW1210(0..7)
The field bus address set on the valve terminal
is not relevant in this example, because in the
entries (symbols of the I/O tables) in the
configuration editor, both %MW tables have
been assigned explicitly to one valve terminal
(with its defined field bus address).
Addresses
of the table
%MW n (0..7) Assignment of the output table of a valve terminal
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
%MW 1200 15
*)
14
*)
13 12 11 10 9 8 7 6 5 4 3 2 1 0
%MW 1201 23 22 21 20 19 18 17 16
%MW 1202
Reserved (not used by the valve terminal)
%MW 1203
%MW 1204
%MW 1205
%MW 1206
%MW 1207
Please note:
Valves:
fields 0 ... 13;
Digital outputs: fields 16 ... 23
These fields contain the current status (logic 0 or 1), with which the physically
existing valves/digital outputs are controlled.
*)
Due to the 4-bit orientated addressing of the valve terminal, the addresses
14 and 15 cannot be used ("rounded,” see chapter 4.1).
Fig. 4/22: Example 1 – concrete assignment of the outputs of a
valve terminal
VIFB16 - 03/05 4. Commissioning
0506b
4-51