Peripheral Devices
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465
8.11.4.6 SPS
In this station type, an external PLC controls the station. The TC gets the VIN number and mode number
from the external PLC over a field bus connection.
PLUS
Ethernet
1) PN or KN
and Mode
3) Cycle data
Line PLC
Fieldbus
TC
2
Switch
TC
3
TC
1
Workflow
1. The external PLC sends a PN or KN and a mode number over the field bus.
2. The TC makes the tightening with the selected mode.
3. When the tightening is finished the cycle data is sent to PLUS.
PLC program
The PowerMACS PLC program will be very similar to the program used in the SAW station.
1. The line PLC sends mode number and PN or KN to PowerMACS PLC through a field bus
connection.
2. The PowerMACS PLC copies the value of PN or KN to PLUS_BARCODE and sends a positive
edge to PLUS_GETTMU.
3. Since
Station type
is SPS nothing is sent to PLUS. Instead the value written in PLUS_BARCODE
is directly copied to CURRIDSTRING with a “PN” or “KN” added as prefix.
4. The mode number received from the line PLC is copied to MODE, by the PowerMACS PLC. This
mode is started and CURRIDSTRING will be included as Wp. Id in the cycle data.
Содержание PowerMACS 4000
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Страница 46: ...System Architecture 46 9836 3521 01...
Страница 127: ...Set Up and Maintenance 9836 3521 01 127 See chapter Station Set Up for a description of the parameters...
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Страница 422: ...Peripheral Devices 422 9836 3521 01 When connected to a system the form will show show the signal values in realtime...
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Страница 622: ...Peripheral Devices 622 9836 3521 01...
Страница 664: ...References 664 9836 3521 01...
Страница 668: ...9836 3521 01 2010 11 Edition 10 3 0 www atlascopco com...