Lenze DDS System bus CAN for PLC - Manual (Page 40)

System bus (CAN) for Lenze PLC devices
"CAN" system bus interface configuration
3−6
l
PLC−Systembus EN 2.0
3.5 Cycle time (CAN2_OUT/CAN3_OUT)
The transmission of the output data of CAN2_OUT and CAN3_OUT can be carried out in an
event−controlled or time−controlled manner.
·
The configuration of the transmission mode is effected via code C0356/x:
Code LCD Possible settings Information
Lenze Selection
C0356
2
3 CAN2_OUT T
CAN3_OUT T 0
0
0 {1} 65000
0 = event−controlled transmission
Factor to the task time for
transmitting the process data
object
Event−controlled transmission
C0356/x = 0
·
The transmission of the output data is always effected if a value has changed within the
8 bytes of user data (Lenze setting).
Time−controlled transmission
C0356/x = 1 ... 65000
·
The transmission of the output data is effected within the cycle time set in C0356/x (relating to
the task cycle time).
Example:
·
The CAN object is used in a 10 ms task.
·
Factor set via C0356/2 = 5
ð
The CAN object is transmitted after every fifth cycle of the task, i. e. every 50 ms (10 ms x 5).
3.6 Delay time (CAN2_OUT/CAN3_OUT)
For the transmission of the output data of CAN2_OUT and CAN3_OUT a delay time can be configured
via code C0356/4:
Code LCD Possible settings Information
Lenze Selection
C0356
4 CAN delay 20
0 {1 ms} 65000 Delay time for sending the process
data object.
If the NMT state Operational (to Pre−operational or Stopped) is reached, the "CANdelay" delay time
is started. After the delay time has expired, the PDOs CAN−OUT2 and CAN−OUT3 are transmitted
for the first time.