# Fieldbus

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Cyclic Structure: (Time stamp) (KODO) (CMDD) (BUFC)

Acyclic Structure: (Time stamp) (KODO) (CMDD) (OBJ) (DATA)

KODO – Kind of Data Object:

PDO = Process Data Objects (cyclic communication)

SDO = Service Data Objects (acyclic communication)

CMDD – Command Direction:

get = Received Data over Interface

set = Transmitted Data over Interface

BUFC – Buffer Content:

Ethercat: Order depends on the current PDO-Mapping

DeviceNet: Order depends on the current used assembly

CC-Link: Order depends on Profile 2

Pofibus: Order depends on the current used Profile

OBJ - Object:

The Parameter object where data is received or transmitted to it

DATA:

In case CMDD is get.

→ All data with data type float are send in IEEE-754 Standard

→ PDO cyclic data are traced in case of buffer content has changed.