4 incoming connections, the Modbus Master is an outgoing one (allowing the 8600 to communicate to another device via Modbus TCP).
8600 only supports a maximum of 4 connected simultaneous sockets (total across all protocols).
Here is a summary of the available sockets per ION device.
Telnet will always disconnect the last connected socket if the maximum number of sockets are already in use.
perfect,
after I saw in the manual that the fifth connection is dedicated to the master modbus
Thank you.
4 incoming connections, the Modbus Master is an outgoing one (allowing the 8600 to communicate to another device via Modbus TCP).
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