The Digihelic Links? Communications Software is an easy to use Windows? based program. Data logging and graphing can be set up by the individual control with varying logging periods. Event logging, live instrument status, remote calibration as well as uploading pre-saved configuration files are some of the higher end capabilities the Digihelic Links? Communications Software provides. The Digihelic Links? Communications is compatible with all Series DH and DHII Digihelic? Differential Pressure Controllers.