[DATA="data or DOS mode string"]
OP="<READ | WRITE | SEND | LENGTH >" (READ)
This tag communicates with a serial port on the server. Any device that can be attached to a serial port could be controlled or manipulated with this tag. The PORT is the COM port number to address on the server. This could be used to send signals to a PLC device, or read values from a temperature gauge attached to the serial port.
DATA is a required "string" to "write"