Communication; Communication Settings; Packet Format - INVT Goodrive350 Series Operation Manual

Communication extension card
Master device
(PLC)

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.
MAC-layer
packet header
14 bytes
Table 5-4 describes the structure of a UDP communication packet.
Slave device 1
EC-Tx510
CN2 CN1
Figure 5-4 Electrical wiring diagram for a ring network
Table 5-3 Structure of a TCP communication packet
IP-layer
packet
header
20 bytes
Slave device 2
EC-Tx510
CN2 CN1
TCP-layer
packet header
20 bytes
-59-
EtherNet/IP communication card
Slave device n
CN2
Valid data Packet trailer
0–1488 bytes
EC-Tx510
CN1
4 bytes