Lenze DDS System bus CAN for PLC Manual de usuario descargar pdf (Pagina 52)

System bus (CAN) for Lenze PLC devices

Configuration (AIF interface)

4−2

PLC−Systembus EN 2.0

4.2 CAN boot−up

If the initialisation of the system bus and the associated state change of Pre−operational to

Operational is not taken over by a higher−level master system, the PLC or a controller can be

designated as a "quasi" master to accomplish this task.

· The configuration is effected via code C2352:

Code LCD

Possible settings

Information

Lenze Selection

C2352 XCAN mst 0 0 Boot−up not active

1 Boot−up active

Device sends system bus boot−up

and thus is the "quasi" master.

Delay time for system bus initialisation (boot−up)

Some nodes (e. g. HMIs) require a specific starting time after mains connection before they can be

transferred to the Operational state via NMT commands by the master.

In order to ensure that even the node with the greatest starting time really is ready to receive NMT

commands, you can set a delay time. When it has expired, NMT commands can only be transmitted

after mains power−up.

· The configuration of this delay time is effected via code C2356/1:

Code LCD

Possible settings

Information

Lenze Selection

C2356/1 XCAN boot−up 3000 0 {1 ms} 65000 Delay time after power−on for

initialisation via the "quasi" master

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Lenze DDS System bus CAN for PLC Manual de usuario Pagina 52