Configuration
Configuring MotionBus/system bus (CAN)
Defining boot−up master in the drive system
8
175
EDBCSXS064 EN 4.0
8.1.3 Defining boot−up master in the drive system
If the bus initialisation and the related state change from "Pre−Operational" to
"Operational" is not carried out by a higher−level host system (PLC), another node can be
determined as boot−up master to carry out this task.
The master functionality is only required for the initialisation phase of the drive system.
C0356 serves to set a boot up time for the master for the initialisation phase (
176).
By means of the NMT telegram start_remote_node (broadcast telegram) all nodes are
shifted to the NMT−state "Operational" by the master. A data exchange via the process
data objects can only be effected in this state.
The configuration is carried out via C0352.
Code Possible settings IMPORTANT
No. Designation Lenze/
{Appl.}
Selection
C0352 CAN mst 0
Boot−up master/slave
configuration for CAN bus
interface X4
175
0 Slave
1 Master boot−up Device is active as CAN boot−up
master.
2 Master node guarding
3 Slave heartbeat producer
4 Slave node guarding
Save changes with C0003 = 1.
The settings are only accepted after carrying out one of the following actions:
ƒ Renewed switch−on of the 24 V low−voltage supply
ƒ Reset node via the bus system (by the network management (NMT))
ƒ Reset node with C0358 = 1
Note!
If reset node is executed via GDC, communication will be interrupted. You
therefore have to log in again manually or find the devices connected to the
bus once again (fieldbus scan).
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