POWERLINK Information
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3.4 Reference model
POWERLINK provide the same communication mechanisms as those known from
2
CANopen:
Object dictionary
PDO, Process Data Objects
SDO, Service Data Objects
NMT, Network Management
Thus applications will not see a difference between CANopen and POWERLINK,
neither in data handling nor in using the Object Dictionary or other services
characteristic of CANopen.
By use of POWERLINK the CAN specific network restrictions are cancelled and
furthermore the advantages of CANopen are used:
●
Easy migration from CAN to POWERLINK or
●
Combination of CAN and POWERLINK networks by using gateways
Figure 3: POWERLINK organized in the ISO/OSI layer model [Reference: EPSG Powerlink
Specification]
2
EN 50325-4: Industrial Communication Systems, based on ISO 11898 (CAN) for Controller Device Interfaces.
Part 4: CANopen.
