Mitsubishi Electric MELSEC iQ-R Series User Manual page 508

Number of consumed connections
■Number of consumed connections (For port 2) (Un\G8474724)
This displays the current number of consumed connections.
The number of consumed connections is the total number of the following connections with a maximum value of 256.
*1*2
• Connections set in "EtherNet/IP Configuration" as the Class1 communications (instance/tag) originator
*1*2
• Connections set in "EtherNet/IP Configuration" as the Class3 communications (message/tag) client
• Active connections
*4*5
• Connections that are communicating with another EtherNet/IP device as a Class3 communications (message/tag)
server
*1 Connections set for reserved stations are not included in the set number of connections.
*2 Even if communication has not started, these are counted as consumed connections.
*3 When a request from an originator is received, it is counted as a consumed connection once communication starts. If multiple originators
connect to connections set as targets using multicast, the number of connected originators will be added to the number of consumed
connections.
*4 Only connections set in "EtherNet/IP Configuration" as Class1 communication (instance/tag) targets or Class3/UCMM tags are added.
As a condition for adding to the number of consumed connections, the connection must be present from receiving the connection
establishment request from the originator/client until the connection is released.
*5 The Class3 message communications server function allows it to operate as a server if requested by a client and accepts connection
establishment requests even if there are no settings in "EtherNet/IP Configuration". In such cases, these are added to the number of
connections.
Connection will not be possible if the maximum value of 256 is exceeded. If an originator device that is
actively communicating as a target for Class1 communications (instance/tag) has its communication
interrupted due to a cable disconnection or communication error, the count is reduced.
APPX
506
Appendix 3 Buffer Memory
*3*4
as a Class1 communications (instance/tag) target