Материал: m083700d
86• Feldbus-Controller 750-837, /02x-000, 750-838, /02x-000 Datenaustausch
Zugriffsadressierung der PFC-Ausgangsvariablen
Speicherplatz der |
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Adressierung der Daten mit der Datenbreite |
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PFC-Ausgangs- |
1 Byte |
1 Wort |
3 Byte |
1 Doppel- |
5 Byte |
6 Byte |
7 Byte |
8 Byte |
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variablen im |
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Controller |
Index |
Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
(Offset) |
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in- |
in- |
in- |
in- |
in- |
in- |
in- |
in- |
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dex |
dex |
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dex |
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A000 |
LSB |
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LSB |
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LSB |
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LSB |
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LSB |
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LSB |
512 |
A040 |
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LSB |
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LSB |
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1 |
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A080 |
MSB |
A0C0 |
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1 |
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A000 |
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A100 |
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513 |
A040 |
2 |
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A140 |
1 |
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A080 |
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MSB |
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A180 |
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A1C0 |
1 |
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A200 |
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A000 |
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514 |
3 |
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A240 |
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A280 |
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A040 |
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1 |
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A080 |
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MSB |
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A2C0 |
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A300 |
1 |
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A0C0 |
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2 |
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A340 |
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A100 |
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A380 |
1 |
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515 |
etc. |
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MSB |
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A3C0 |
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A400 |
1 |
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A440 |
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516 |
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A140 |
2 |
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MSB |
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A180 |
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etc. |
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MSB |
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517 |
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A1C0 |
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A200 |
2 |
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A240 |
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518 |
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MSB |
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A280 |
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etc. |
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2 |
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MSB |
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519 |
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A2C0 |
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520 |
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A300 |
2 |
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521 |
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A340 |
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etc. |
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A380 |
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522 |
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2 |
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A3C0 |
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523 |
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524 |
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A400 |
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2 |
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etc. |
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A440 |
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525 |
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526 |
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etc. |
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527 |
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528 |
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etc |
etc. |
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1022 |
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max |
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max |
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max |
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max |
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max |
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max |
max |
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max. |
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Sub- |
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max. |
Sub- |
max. |
Sub- |
max. |
Sub- |
max. |
Sub- |
max. |
Submax. |
Sub- |
1023 |
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max |
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Index |
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In- |
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Index |
In- |
Index |
In- |
Index |
In- |
Index |
In- |
Index |
InIndex |
In- |
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max. |
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Sub- |
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dex |
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dex |
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dex |
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dex |
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dex |
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dex |
dex |
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Index |
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In- |
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* Bis zu 8 boolsche Werte können in einem Byte (1 Subindex) gespeichert werden, d.h. es erfolgt keine Bitauflösung pro Subindex.
WAGO-I/O-SYSTEM 750
CANopen
Feldbus-Controller 750-837, /02x-000, 750-838, /02x-000 |
• 87 |
Datenaustausch |
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Zugriffsadressierung der PFC-Eingangsvariablen
Speicherplatz der |
|
|
Adressierung der Daten mit der Datenbreite |
|
|
|||
PFC-Eingangs- |
1 Byte |
1 Wort |
3 Byte |
1 Doppel- |
5 Byte |
6 Byte |
7 Byte |
8 Byte |
variablen im |
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wort |
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Controller |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub |
Index Sub- |
(Offset) |
in- |
in- |
in- |
in- |
in- |
in- |
in- |
index |
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dex |
dex |
dex |
dex |
dex |
dex |
dex |
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512 |
A480 |
LSB |
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LSB |
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LSB |
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LSB |
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LSB |
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LSB |
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LSB |
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LSB |
A4C0 |
1 |
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A500 |
MSB |
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* |
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A540 |
1 |
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A480 |
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513 |
2 |
A580 |
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1 |
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A4C0 |
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A5C0 |
A640 |
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A500 |
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MSB |
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A600 |
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A680 |
1 |
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* |
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A6C0 |
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A480 |
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A700 |
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1 |
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514 |
A4C0 |
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A740 |
A780 |
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MSB |
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A500 |
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A540 |
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A7C0 |
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A800 |
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A580 |
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A840 |
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A880 |
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MSB |
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A8C0 |
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516 |
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A5C0 |
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MSB |
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2 |
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A600 |
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517 |
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A640 |
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MSB |
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A680 |
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518 |
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A6C0 |
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MSB |
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etc. |
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A700 |
2 |
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MSB |
519 |
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A740 |
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520 |
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A780 |
2 |
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521 |
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A7C0 |
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etc. |
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522 |
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A800 |
2 |
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A840 |
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523 |
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524 |
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A880 |
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2 |
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A8C0 |
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525 |
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526 |
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etc. |
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527 |
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etc. |
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528 |
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etc. |
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max |
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max |
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max |
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max |
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max |
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max |
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max- |
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max. |
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Sub- |
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max. |
Sub- |
max. |
Sub- |
max. |
Sub- |
max. |
Sub- |
max. |
Sub- |
max. |
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1023 |
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max |
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Index |
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In- |
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Index |
In- |
Index |
In- |
Index |
In- |
Index |
In- |
Index |
In- |
Index |
Sub- |
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Index |
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max. |
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Sub- |
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dex |
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dex |
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dex |
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dex |
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dex |
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dex |
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Index |
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In- |
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* Bis zu 8 boolsche Werte können in einem Byte (1 Subindex) gespeichert werden, d.h. es erfolgt keine Bitauflösung pro Subindex.
WAGO-I/O-SYSTEM 750
CANopen
88• Feldbus-Controller 750-837, /02x-000, 750-838, /02x-000 Datenaustausch
Beispiele für die Definition von PFC-Feldbusvariablen
In den folgenden Beispielen sind einige Definitionen für PFC-Variablen mit verschiedenen Datentypen den dazugehörigen Objektverzeichniseinträgen gegenübergestellt.
Datentyp |
PFC-Eingangsvariablen |
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PFC-Ausgangsvariablen |
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Index |
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Index |
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der PFC- |
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Variablen |
Definition nach IEC 61131-3 |
/Sub- |
Definition nach IEC 61131-3 |
/Sub- |
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Index |
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Index |
Unsigned8 |
InByte0 AT%IB512 : BYTE; |
0xA4C0/1 |
OutByte0 AT%QB512 : BYTE; |
0xA040/1 |
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InByte0 AT%IB513 : BYTE; |
0xA4C0/2 |
OutByte0 AT%QB513 : BYTE; |
0xA040/2 |
Integer16 |
InInt0 AT %IW256 : INT; |
0xA540/1 |
InInt0 AT %QW256 : INT; |
0xA0C0/1 |
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InInt1 AT %IW257 : INT; |
0xA540/2 |
InInt1 AT %QW257 : INT; |
0xA0C0/2 |
Unsigned16 |
InWord0 AT %IW256 : WORD; |
0xA580/1 |
OutWord0 AT %QW256 : WORD; |
0xA100/1 |
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InWord0 AT %IW257 : WORD; |
0xA580/2 |
OutWord0 AT %QW257 : WORD; |
0xA100/2 |
Unsigned32 |
InDWord0 AT %ID128 : DWORD; |
0xA680/1 |
OutDWord0 AT %QD128 : DWORD; |
0xA200/1 |
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InDWord0 AT %ID129 : DWORD; |
0xA680/2 |
OutDWord0 AT %QD129 : DWORD; |
0xA200/2 |
Tab 3-6: Beispiele für Variablendefinitionen mit dazugehörigen Objektverzeichniseinträgen
3.1.6.4.1.3.1Maximale Indizes
Die maximalen Indizes und Sub-Indizes ergeben sich aus der Speichergröße des Feldbus-Controllers mit 512 Byte und der jeweiligen Datenbreite der Datentypen.
Eine Übersicht über die maximalen Indizes und Sub-Indizes der IEC 61131-3 Variablen zeigt die Tabelle.
Datentyp |
IEC 61131-3 Eingangsvariablen |
IEC 61131-3 Ausgangsvariablen |
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max. Index |
max. Sub-Index |
max. Index |
max. Sub-Index |
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Integer8 |
0xA002 |
2 |
0xA482 |
2 |
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Unsigned8 |
0xA042 |
2 |
0xA4C2 |
2 |
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Boolean |
0xA082 |
2 |
0xA502 |
2 |
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Integer16 |
0xA0C1 |
1 |
0xA541 |
1 |
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Unsigned16 |
0xA101 |
1 |
0xA581 |
1 |
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Integer24 |
0xA140 |
AA |
0xA5C0 |
AA |
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Unsigned24 |
0xA180 |
AA |
0xA600 |
AA |
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Integer32 |
0xA1C0 |
80 |
0xA640 |
80 |
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Unsigned32 |
0xA200 |
80 |
0xA680 |
80 |
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Float32 |
0xA240 |
80 |
0xA6C0 |
80 |
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Unsigned40 |
0xA280 |
66 |
0xA700 |
66 |
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Integer40 |
0xA2C0 |
66 |
0xA740 |
66 |
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Unsigned48 |
0xA300 |
55 |
0xA780 |
55 |
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Integer48 |
0xA340 |
55 |
0xA7C0 |
55 |
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Unsigned56 |
0xA380 |
49 |
0xA800 |
49 |
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Integer56 |
0xA3C0 |
49 |
0xA840 |
49 |
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Integer64 |
0xA400 |
40 |
0xA880 |
40 |
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Unsigned64 |
0xA440 |
40 |
0xA8C0 |
40 |
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Tab 3-7: Maximale Indizes und Sub-Indizes für die Definition von IEC 61131-3 Variablen
WAGO-I/O-SYSTEM 750
CANopen
Feldbus-Controller 750-837, /02x-000, 750-838, /02x-000 |
• 89 |
Datenaustausch |
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Beispiel:
512 Bytes Ausgangsvariablen werden wortweise mit dem Datentyp Unsigned16 adressiert.
Die Adressierung der 256 Datenworte erfolgt dann mit:
-Index 0xA580, Sub-Index 1 bis 255 und
-Index 0xA581, Sub-Index 1.
Index: |
Sub- |
Inhalt: |
Beschreibung: |
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Index: |
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0 |
255 |
Anzahl Ausgangsblöcke |
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0xA580 |
1 |
D1 *) |
1. Ausgangsvariablenblock |
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... |
... |
... |
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255 |
D255 *) |
255. Ausgangsvariablenblock |
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0xA581 |
0 |
1 |
Anzahl Ausgangsblöcke |
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1 |
D256 *) |
256. Ausgangsvariablenblock |
*) D1 = Datenwort Ausgangsvariable 1, D255 = Datenwort Ausgangsvariable 255, etc.
3.1.6.4.2 Absolute Adressierung
Die interne CPU des PFC hat über absolute Adressen direkten Zugriff auf die Daten. Die Adressierung beginnt sowohl bei Eingängen als auch bei Ausgängen mit der Adresse 0. Die entsprechenden Adressen für Bits, Byte und Doppelworte (DWord) sind von den Wortadressen abgeleitet.
Der Aufbau des Prozessabbildes ist in Kapitel Fehler! Verweisquelle konnte nicht gefunden werden. Fehler! Verweisquelle konnte nicht gefunden werden. beschrieben. Die Adressierung erfolgt in dieser Struktur.
Eingangsdaten |
%IW0 |
wortorientierte Daten |
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%IWn |
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%IX(n+1).0 |
bitorientierte Daten |
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%IX(n+m).15 |
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Ausgangsdaten |
%QW0 |
wortorientierte Daten |
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%QWn |
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%QX(n+1).0 |
bitorientierte Daten |
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%QX(n+m).15 |
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3.1.6.4.2.1Adressen berechnen
Die Basis zur Berechnung der Adressen ist die Wortadresse (Word).
Bit-Adresse |
Wortadresse .0 bis .15 |
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Byte-Adresse |
1. |
Byte: 2 x Wortadresse |
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2. |
Byte: 2 x Wortadresse + 1 |
DWord-Adresse |
unterer Teil: Wortadresse (gerade Zahl) / 2 |
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oberer Teil: Wortadresse (ungerade Zahl) / 2, abgerundet |
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WAGO-I/O-SYSTEM 750
CANopen
90• Feldbus-Controller 750-837, /02x-000, 750-838, /02x-000 Datenaustausch
3.1.6.4.2.2Adressbereich der Busklemmendaten
Datenbreite |
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Adressenbereiche für die Busklemmendaten |
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Bit |
0.0 |
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0.8 |
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1.0 |
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1.8 |
... |
254.0 |
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254.8 |
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255.0 |
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255.8 |
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... |
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... |
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... |
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... |
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... |
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... |
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... |
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... |
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0.7 |
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0.15 |
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1.7 |
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1.15 |
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254.7 |
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254.15 |
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255.7 |
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255.15 |
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Byte |
0 |
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1 |
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2 |
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3 |
... |
508 |
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509 |
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510 |
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511 |
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Word |
0 |
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1 |
... |
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254 |
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255 |
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DWord |
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0 |
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... |
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127 |
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3.1.6.4.2.3Adressbereich der Feldbus-Variablen
Datenbreite |
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Adressenbereich für die Feldbus-Variablen |
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Bit |
256.0 |
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256.8 |
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257.0 |
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257.8 |
... |
510.0 |
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510.8 |
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511.0 |
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511.8 |
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... |
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... |
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... |
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... |
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... |
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... |
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... |
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... |
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256.7 |
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256.15 |
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257.7 |
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257.15 |
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510.7 |
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510.15 |
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511.7 |
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511.15 |
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Byte |
512 |
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513 |
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514 |
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515 |
... |
1020 |
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1021 |
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1022 |
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1023 |
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Word |
256 |
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257 |
... |
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510 |
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511 |
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DWord |
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128 |
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... |
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255 |
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3.1.6.4.2.3.1Adressbereich Merker
Datenbreite |
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Adressen |
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Bit |
0.0 |
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0.8 |
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1.0 |
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1.8 |
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... |
4094.0 |
4094.8 |
4095.0 |
4095.8 |
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... |
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... |
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... |
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... |
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... |
... |
... |
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0.7 |
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0.15 |
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1.7 |
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1.15 |
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4094.7 |
4094.15 |
4095.7 |
4095.15 |
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Byte |
0 |
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1 |
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2 |
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3 |
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... |
8188 |
8189 |
8190 |
8191 |
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Word |
0 |
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1 |
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... |
4094 |
4095 |
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DWord |
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0 |
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... |
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2047 |
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Alle Merker sind nullspannungssicher ausgeführt (retain).
3.1.6.4.2.4Beispiele für absolute Adressen
Datenbreite |
Eingänge: |
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Bit |
%IX14.0 ... 15 |
%IX15.0 ... 15 |
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Byte |
%IB28 |
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%IB29 |
%IB30 |
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%IB31 |
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Word |
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%IW14 |
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%IW15 |
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DWord |
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%ID7 |
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Datenbreite |
Ausgänge: |
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Bit |
%QX5.0 ... 15 |
%QX6.0 ... 15 |
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Byte |
%QB10 |
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%QB11 |
%QB12 |
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%QB13 |
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Word |
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%QW5 |
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%QW6 |
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DWord |
%QD2 (oberer Teil) |
%QD3 (unterer Teil) |
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WAGO-I/O-SYSTEM 750
CANopen