SendByte
Interface
VAR_INPUT
SendByte : BYTE;
END_VAR
VAR_OUTPUT
Busy : BOOL;
Error : INT;
END_VAR
VAR_IN_OUT
TxBuffer : ComBuffer;
END_VAR
Description
SendByte sends a single character to the interface corresponding to the input variable TxBuffer. For as long as Busy=TRUE, the transmission is not completed. The character was successfully sent when Busy=FALSE and Error=0.
 | If the send data buffer can still accept data, more than one character can be sent in a single PLC cycle. This is, however, only worthwhile if the buffered characters will be transmitted to the hardware by a faster communication task. |