11 system bus "can on board – Lenze 8400 StateLine User Manual
Page 520
11
System bus "CAN on board"
11.8
Process data transfer
520
Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
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The communication parameters such as the transmission mode and cycle time can be set freely for
every PDO and independently of the settings of other PDOs:
Blocking time
In
a "blocking time" can be set which defines the shortest transmission cycle with the
transmission type"asynchronous - manufacturer-specific/device profile-specific".
Example: Cycle time = 500 ms, blocking time = 100 ms, sporadic data change:
• With a sporadic data change < 500 ms, quickest transmission takes place every 100 ms due to
the set blocking time (event-controlled transmission). The transmission cycle timer is reset to 0
if the transmission has been activated in an event-controlled way.
• In the case of a sporadic data change > 500 ms, due to the cycle time set, transmission takes
place every 500 ms (cyclic transmission).
Tip!
The communication parameters can also be set via the following CANopen objects:
•
: Communication parameters for RPDO1 ... RPDO4
•
: Communication parameters for TPDO1 ... TPDO4
Parameter
Info
Lenze setting
Value Unit
CAN1_OUT
Transmission mode
254
Blocking time
0 ms
Cycle time
0 ms
Data length
8 Bytes
CAN2_OUT
Transmission mode
254
Blocking time
0 ms
Cycle time
0 ms
Data length
8 Bytes
CAN3_OUT
Transmission mode
254
Blocking time
0 ms
Cycle time
0 ms
Data length
8 Bytes
CAN4_OUT
(from version 15.00.00
Transmission mode
254
Blocking time
0 ms
Cycle time
0 ms
Data length
8 Bytes
CAN1_IN ... CAN4_IN
Transmission mode CAN1_IN ... CAN4_IN
• In the case of the RPDO serves as
monitoring setting in the case of sync-
controlled PDOs.
254