Peripheral Devices
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Each fieldbus has its own characteristics regarding the amount of data it could transfer over the bus. The
data on the bus is divided in cyclic and acyclic transfer.
Cyclic transfer occurs on a regular basis between the master and the PowerMACS 4000 fieldbus. Cyclic
data is typically PLC data.
Acyclic transfer occurs only on a request from the master to the PowerMACS 4000 fieldbus. Acyclic data
is typically cycle data, traces etc.
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