Lenze DDS System bus CAN for PLC Uživatelský manuál stáhnout pdf (Strana 40)

System bus (CAN) for Lenze PLC devices

"CAN" system bus interface configuration

3−6

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

CAN2_OUT T

CAN3_OUT T

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

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.

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 177 178

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