CANopen and CANlink Communication
‑53‑
Example
1. Write frequency (F0‑03 set to 9)
Data conversion: Multiply the required frequency value (a) by 100, convert the
result into an integer, and then write the integer in 1000H.
The configuration and procedure are as follows:
2. Start/stop control over the AC drive (F0‑02 set to 2)
Assign a value for the D element corresponding to 2000H of the required station
number to enable the AC drive to run forward or backward or stop. 2000H is
defined as follows:
1: Forward run 2: Reverse run 3: Forward jog 4: Reverse jog 5: Coast to stop 6:
Decelerate to stop 7: Fault reset
The configuration and procedure are as follows:
2000H corresponds to the PLC soft element address D2. When the D2 value is set to
1, the AC drive runs forward. To decelerate to stop, set D2 to 6.
3. Read bus voltage
Based on the conversion rule, convert the bus voltage address U002 to 7002
(convert the higher two bits U to 7 and the lower two bits to a hexadecimal value).
Divide the read bus voltage value (a) by 10 to obtain the actual bus voltage. Based
on the communication configuration, the D element address of the bus voltage is
D300. Therefore, convert D300 to a floating‑point number and then divide the
conversion result by 10.
The configuration and procedure are as follows:
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