MATLAB XPC TARGET 4 - DEVICE DRIVERS Specifiche Scaricare il pdf (Pagina 64)

100

101

2 RS232 I/O Support

2-34

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

OutputPort

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.

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MATLAB XPC TARGET 4 - DEVICE DRIVERS Specifiche Pagina 64

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