It is possible to configure the UniStream PLCs to talk to 3rd party devices such as: frequency converters, RFID cards readers, bar-code readers, and printers with as long as they have proprietary protocol over serial RS232/RS485 or TCP/IP and you know the structure of this protocol.
For this you will use the COM Rx/Tx, TCP Rx/Tx functions and the protocol functions together with the Message Composer to build messages.
Messages are organized in groups. Each group uses the same properties, which includes STX, ETX, and CRC options.
Note that in this case the USB to serial converter must work with Prolific drivers.
2. You can define up to 4 TCP Servers that are dynamic in nature. Each Server can handle up to 16 simultaneous connections.
3. The CPU can simultaneously support up to 32 TCP server/client and UDP sockets.
4. The maximum buffer of data that can be send/received is according to TCP/IP protocol -1024 bytes-
You can find more information regarding this subject on the UniLogic help file under: Home>Protocols: 3rd Party
You may also find an example on the downloadable examples from UniLogic Help menu.
In the following Video, you can view a tutorial for message composer: