Basic Characteristics RAPID

ReadBin Reads from a binary serial channel
Example
ReadBin (Read Binary) is used to read a byte (8 bits) from a binary serial channel.
VAR iodev inchannel;
.
Open "sio1:", inchannel\Bin;
character := ReadBin(inchannel);
A byte is read from the binary channel inchannel.
Return value Data type: num
Arguments
A byte (8 bits) is read from a specified serial channel. This byte is converted to the
corresponding positive numeric value. If the file is empty (end of file), the number -1
is returned.
ReadBin (IODevice [\Time])
IODevice Data type: iodev
The name (reference) of the current serial channel.
[\Time] Data type: num
Program execution
The max. time for the reading operation (timeout) in seconds. If this argument is
not specified, the max. time is set to 60 seconds.
If this time runs out before the reading operation is finished, the error handler
will be called with the error code ERR_DEV_MAXTIME. If there is no error
handler, the execution will be stopped.
The timeout function is in use also during program stop and will be noticed in
RAPID program at program start.
Program execution waits until a byte (8 bits) can be read from the binary serial channel.
RAPID Reference Manual 9-ReadBin-1