Sending a serial string out one of the data logger COM ports requires at least two instructions. Generally, the SerialOpen() instruction is used to set the characteristics of the communications port, such as baud rate and error detection (for example, 115.2k, N, 8, 1). The instructions SerialOut() or SerialOutBlock() can be used to transmit a specified string. See the CRBasic Editor Help for examples of programs using each of these instructions.