This demonstration is intended as instruction on the sequence of steps required for basic use of the archiver. Some Basic ARConcepts AR gets archiving information from one or more request files. Request files specify channel names to be archived as well as archiving control instructions. Request files need to be enabled and activated before AR can process them. Several request files can be enabled at once simply by listing the request file names in open.dat.
Activation is what starts actual sampling of the specified channels.
The request can be automatically activated when enabled or activated upon an event such as an operator screen button. When a request is activated data is written to a binary output file specified in the request file. These files are opened and closed for each sampling. Sample set data files have a .txt extension. Figure 1 shows the archiving directory structure.