Communication extension card
EtherNet/IP communication card
-59-
Master device
(PLC)
Slave device 1
EC-Tx510
CN2
CN1
Slave device 2
EC-Tx510
CN2
CN1
Slave device n
EC-Tx510
CN2
CN1
Figure 5-4 Electrical wiring diagram for a ring network
5.4 Communication
5.4.1 Communication settings
The EtherNet/IP communication card can function as only the EtherNet/IP slave station.
Before communication, set Goodrive350 function codes, including:
1.
IP address and subnet mask for the card
The default IP address and subnet mask for each communication card are 192.168.0.1 and
255.255.255.0. You can change them to the address of a network segment.
2.
Control mode
If you want to control the VFD with the communication card, set the control mode to
EtherNet/IP communication control. To be specific, set P00.01=2 (communication as the
running command channel) and set P00.02=3 (EtherNet/IP communication channel) to control
VFD start and stop. If you want to set a value through EtherNet/IP communication, change the
control way of corresponding function codes to EtherNet/IP communication. Appendix B lists
related function codes.
Note:
After the setting, the card can communicate normally. If you want to control the VFD
with the card, set related function codes to enable EtherNet/IP communication control.
5.4.2 Packet format
Table 5-3 describes the structure of a TCP communication packet.
Table 5-3 Structure of a TCP communication packet
MAC-layer
packet header
IP-layer
packet
header
TCP-layer
packet header
Valid data
Packet trailer
14 bytes
20 bytes
20 bytes
0–1488 bytes
4 bytes
Table 5-4 describes the structure of a UDP communication packet.
Содержание Goodrive350 Series
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