Serial port instructions
Use the serial port instructions to use or alter the communication channel for receiving or transmitting data.
Function block | Description |
|---|---|
Counts the number of characters in the buffer up to and including the end of line character. | |
Counts the total number of characters in the buffer. | |
Clears the receive and transmit buffers. | |
Sets or resets modem handshake lines. | |
Reads characters from the input buffer and places them into a string. | |
Reads one line of characters from the input buffer and places them into a string. | |
Writes a string with two appended (user-configured) characters to an external device. | |
Writes characters from a source string to an external device. |
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