xPC Target

RS232 Send Block (Asynchronous Mode)

The Block Parameters dialog box for the Asynchronous Send block contains the following fields.

Port - This list allows you to define which COM port is used for sending data. The model must contain one RS232 Setup block to configure its COM port, otherwise an error message is displayed.

Message Structure Name - Enter the name of the structure this block uses to send messages and data. For information on creating this structure, see Creating RS-232 Message Structures for Asynchronous Mode.

Sample Time - This entry allows you to define the sample time (update rate) of the block. Because the block does not wait until data is again received from the external device, sample times can be set to small values.

RS-232 Send & Receive (Synchronous Mode)

RS232 Receive Block (Asynchronous Mode)