Panasonic FP7 User Manual page 19

Term
Protocol used for cyclic
communication
Heartbeat
Forward open
Large forward open
RUN/IDLE bit
【Note】
Do not use "2222" and "44818" for the port numbers set to the connections of Ethernet
-
communication.
Description
The cyclic commuication is performed using UDP.
The used port number is 2222.
In the case of InputOnly or ListenOnly, data is sent from the target, however, a packet
called heartbeat whose size is 0 is also sent from the originator (FP7).
For the RPI of this heartbeat, the value 16 times of the target is used automatically.
Heartbeat is used for confirming the continuation of connection on the target side.
It is used for detect the timeout.
This is a command for opening the connection of EtherNet/IP and sent using TCP.
The used port number is 44818.
This is a command for opening the connection when sending/receiving data whose
size is larger than 504 bytes.
This bit indicates the operation state (RUN/IDLE) of a device that is sent from a
scanner or adapter duuring the cyclic communication.
RUN : 1
IDLE : 0
When the RUN/IDLE bit does not become a RUN state, the adapter device may not
operate properly.
For details, refer to "8.1.2 Cyclic Communication State Tables of EtherNet/IP".
2.3 Definitions of Terms
2-7