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9 Communication 9.6.4 Examples of Slave Station (Servo and AC Drive) Access
Parameter
Number
Name Setting Range Unit Default
Effective
Time
Type Mode
H0C-15
CAN communication
protocol selection
0: CANLink
protocol
1: Reserved
(CANopen
protocol)
1 0
Upon power-
on again
Stop
setting
PST
• The group number (the rst two digits) of a servo parameter number does not change, and the parameter number
(the last two digits) needs to be converted from decimal to hexadecimal format. For example, H08.22 ("22" is
decimal) is converted into H0816 ("16" is hexadecimal) in PLC programs. You need to congure the servo address
(H0C.00) and baud rate (H0C.08), and select a CAN protocol (H0C.15). Some servo parameter numbers take
effect only after you power off and then on the device.
2) AC drive access
One H3U PLC, one MD380 AC drive, and one H2U-4DAR extension module form a CANlink network.
The AC drive runs under control of the PLC for 20 seconds, and then stops for 20 seconds. The process
repeats. The H2U-4DAR PLC provides the control voltage. H1U-XP station number is 1. The H2U-4DAR
station number is 2, and the MD380 station number is 3. As only a few stations exist and the communication
distance is only 10 m, set the baud rate to 500 Kbps and the network heartbeat to 500 ms (default). Create
a project "CANlink3.0 Example". Double-click
CAN(CANLink)
. The following gure is displayed.
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