More Information ‣ Typical System Environments (page 183) 3.6 Serial Communication and Analog Output The following functionality is preconfigured at the factory according to your order: • Digital communication interface for COM2 • Digital communication profile for COM2 • Digital communication units Chapter 3 – Functional Description 39
Analog output signals for wind speed channel (AOUT1) • Analog output signals for wind direction channel (AOUT2) 3.7 Serial Communication In WMT700, there are two serial communication ports: • COM1: Service port (RS-485) • COM2: Configurable digital communication interface Both ports support the same commands, protocols, operations, and data messages. You can use any computer or data logger with a serial port to send commands to WMT700 and to receive measurement data Communication Interface COM1 is a fixed RS communication interface to be used as a service port. COM2 is a flexible digital communication interface that is preconfigured according to your order. The available options are: • RS-232 (recommended up to 15 meter distance) • RS-485 (recommended up to 1200 meter distance in point-to-point connection) • RS-422 (recommended up to 1200 meter distance) • SDI-12 (recommended up to 60 meter distance) Note that the recommendations depend on communication speed and cable type. In optimized environments even longer distances can be considered. Regardless of the factory configuration, you can change the COM interface type by using terminal software.