3 communication time, Communication time, 9system bus "can on board – Lenze 8400 BaseLine C User Manual

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9

System bus "CAN on board"

9.1

General information

172

Lenze · 8400 BaseLine C · Reference manual · DMS 1.6 EN · 01/2014 · TD05

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9.1.3

Communication time

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

ding response.

Tip!
The communication times in the CAN network depend on:

• the processing time in the device
• the telegram runtime (baud rate/telegram length)
• the bus load (especially if the bus is charged with PDOs and SDOs at a low baud rate)

Processing time in the 8400 controller
No dependencies exist between parameter data and process data.

• Parameter data: approx. 5 ms (typical value)

• For parameters concerning the motor control (e.g. C011), the processing time may be longer

(up to 30 ms).

• Process data: 1 ms

Monitoring protocols

Heartbeat (heartbeat producer and heartbeat consumer)

• "BaseLine C" version:

1 Heartbeat Producer can be monitored.

• "StateLine" version:

Up to 7 Heartbeat Producers can be monitored.

• "HighLine" version:

Up to 15 Heartbeat Producers can be monitored.

Emergency telegram (to master)

Protocols

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