2.3.2. VCOM Application
User can download VCOM software from http://www.usriot.com/usr-vcom-virtual-serial-software/. Through
this software user can set up connection between TCP232-306 and virtual serial to solve the problem that
traditional equipment PC software used in serial port communication way.
2.3.3. Serial Package Methods
For network speed is faster than serial. Module will put serial data in buffer before sending it to network. The data
will be sent to Network as Package. There are 2 ways to end the package and send package to network - Time
Trigger Mode and Length Trigger Mode.
TCP232-306 adopt fixed Package time (four bytes sending time) and fixed Package length (400 bytes).
2.3.4. Baud Rate Synchronization
When module works with USR devices or software, serial parameter will change dynamically according to
network protocol. Customer can modify serial parameter by sending data conformed to specific protocol via
network. It is temporary, when restart module, the parameters back to original parameters.
User can adopt Baud Rate Synchronization function by setup software as follows:
Figure 16 Baud Rate Synchronization
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