RS232 I/O Support (xPC Target)

xPC Target

RS-232 Receive Message Structure (Asynchronous)

Below are descriptions of the possible message fields for the receive message Structures with synchronous mode.

Message Fields
Description

RecData

Data and format received from the RS-232 device. Default value = ''. The format of this statement is very similar to a scanf statement. The read data is mapped to the output ports defined in the message field .OutputPorts. If a negative output port is given, the data is read in but not sent to any output port

OutputPorts

Number of output ports from the driver block. Data received from a RS-232 device is sent to the output ports with the message field .ReceiveData. Default value = []. The highest number you enter determines the number of output ports on the driver block.

For example, to use output ports 1 and 2 on the driver block.

RS232_Send_Receive.OutputPorts = [1 2];

Timeout

Time, in seconds, the driver block waits for data to be returned. Default value = 0.049.

EOM

End of message character.

Message Fields	Description
RecData	Data and format received from the RS-232 device. Default value = `''`. The format of this statement is very similar to a scanf statement. The read data is mapped to the output ports defined in the message field `.OutputPorts`. If a negative output port is given, the data is read in but not sent to any output port
OutputPorts	Number of output ports from the driver block. Data received from a RS-232 device is sent to the output ports with the message field `.ReceiveData`. Default value = `[].` The highest number you enter determines the number of output ports on the driver block. For example, to use output ports 1 and 2 on the driver block. RS232_Send_Receive.OutputPorts = [1 2];
Timeout	Time, in seconds, the driver block waits for data to be returned. Default value = `0.049`.
EOM	End of message character.

RS-232 Send Message Structure (Asynchronous) Supported Data Types for Message Fields