The controller supports the following services:
The controller supports the following protocols:
oTCP (Transmission Control Protocol)
oARP (Address Resolution Protocol)
oICMP (Internet Control Messaging Protocol), only support Ping function.
The maximum number of TCP connection:
o4 Modbus servers
o3 Modbus servers and 1 client
Each server based on TCP manages its own pool of connections.
When a client tries to open a connection that exceeds the poll size, the controller closes the oldest connection.
If all connections are busy (exchange in progress) when a client tries to open a new one, the new connection is denied.
All server connections stay open as long as the controller stays in operational states (RUN, STOP, HALT).
All server connections are closed when leaving or entering operational states (RUN, STOP, HALT), except in case of power outage (because the controller did not have time to close the connections).
