What Is Ethernet/Ip; Overview Of Ethernet/Ip; Fp0H Ethernet/Ip Function - Panasonic AFP0HC32ET User Manual

FP0H EtherNet/IP Function

1.1 What is EtherNet/IP?

1.1.1 Overview of EtherNet/IP

EtherNet/IP (Ethernet Industrial Protocol) is an industrial multi-vendor realtime Ethernet
system for executing the communication protocol for CIP (Common Industrial Protocol) control
in an application layer on standard Ethernet.
Cyclic communication can be performed among devices compatible with EtherNet/IP. In cyclic
communication, devices compatible with EtherNet/IP send or receive data between "specified
data areas" in a "specified cycle". Even when the number of nodes increases, the cycle does
not increase.
For information on CIP, refer to the documents of ODVA.
1.1.2 FP0H EtherNet/IP Function
The FP0H can perform the cyclic communication with PLCs and I/O devices compatible with
EtherNet/IP on the EtherNet/IP network.
The send and receive areas are allocated from the device area of the FP0H for the cyclic
communication. Data is sent/received from the allocated area with specified intervals (RPI).
The EtherNet/IP function of FP0H is set from the "EtherNet/IP settings" menu of programming
software FPWIN GR7.
 Originator and Target
In each connection (communication line) of cyclic communication, there are "originator" which
opens each connection and "target" which a connection is opened.
The PLC (FP0H) can be set as the both originator and target.
For the communication between the FP0H and a PLC, the settable connection is "Input Only"
(i.e. data can be sent in one direction, from target to originator). By using two connections,
data can be sent and received.
FP0H
Originator
Target
: Opens connection.
1-2
PLC
Connection 1
Originator
Connection 2
: Sends cyclic data.
Target