Specifications

Optimizing Performance
104
EIO0000000051 6/2010
Message Response Time
After calculating Message Traverse Time (above), you can next measure Message
Response Time, which measures the total time required for:
z a message to travel from a client device over the network to a server
z the message to be processed by the server
z the server response to travel back to the client over the network
Message Response Time can be calculated as follows:
Message Response Time =
(2 x (Message Traverse Time)) + (Server Processing Time)
In the above formula, ‘2’ indicates a round trip required for client/server
communication.
After Message Response Time is calculated, you can determine and configure the
following parameters, both of which are found in the Channel Properties →
EtherNet/IP page of the Unity Pro Ethernet Configuration Tool:
z EM Request Timeout value, and
z EM Connection RPI