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E84AYCEC communication manual (Ethernet POWERLINK)

Technical data

Ethernet POWERLINK communication data

20 L EDS84AYCEC EN 3.0 - 09/2012

4.3 Ethernet POWERLINK communication data

Communication time

The communication time is the time between the start of a request and the arrival of the

corresponding response.

The communication times in the Ethernet POWERLINK network depend on ...

 the processing time in the controller;

 the telegram runtime (baud rate / telegram length);

 the nesting depth of the network.

Processing time in the controller

There are no interdependencies between parameter data and process data.

Field Values

Min. cycle time 400 s

Total cycle times 0.4 / 0.5 / 1.0 / 2.0 / 3.0 … 20.0 ms

Buffer size • Tx-iso: max. 1490 bytes

• Rx-iso: max. 1490 bytes

(max. 32 bytes of PDO user data)

Delay time • Controlled node (T

Preq

- T

Res

): approx. 2.6 s

• Controlled node (T

SoA

- T

ASnd

): approx. 2.6 s

Frame size Max. asynchronous frame size (MTU): 1518 bytes

SDO communication method UDP/IP or ASND

Number of RPDOs Max. 6 channels

RPDO user data per application (all

RPDOs)

Max. 16 objects (max. 32 bytes)

Number of TPDOs 1 channel (data access of all nodes by broadcasting)

TPDO user data per application Max. 16 objects (32 bytes)

CN operating modes Support of ...

•Multiplex CNs

•Optional CNs

Data Processing time

Process data approx. 2 ms

+ 0 ... 1 ms

+ 1 ... x ms

Update cycle

Processing time in the module

Runtime of the application task of the technology

application used (tolerance)

Parameter data approx. 30 ms + 20 ms tolerance (typical)

• For some codes, the processing time may be longer (see software

manual/»Engineer« online help for the Inverter Drive 8400).

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