There are two techniques that can be used to transfer logged data to a computer: Host transfer and Client transfer. With either method, data transfer can occur over phone lines, radios or any other supported communications media. The logged data is saved automatically in an ASCII text file that is easily read by Windows applications. Using a data file, it is possible for a Windows application to recover missing data from its trend line due to a communication loss or other occurrence.
Host Transfer
With this type of transfer the computer sends commands to the SIXNET station, requesting the logged data. Data retrieval can be launched automatically by a Windows application, typically at a scheduled time. A host transfer definition is specified within a Sixlog (sxlogview.exe) command line for this purpose.
See Also: Host Transfer Definition
Client Transfer
With this type of transfer the SIXNET station is preconfigured to sends its logged data to a computer or other device upon an alarm, event signal or scheduled time. A software driver in the computer receives the logged data and writes it to an ASCII text file. The software driver can be the Datalog Server or a user-written driver.
See Also: Client Initiated Data Transfers