Campbell Scientific CR3000 CR3000 Micrologger - Page 399
ListFiles Command
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Section 8. Operation FileControl Response All output formats contain the following parameters. Any action (for example, 9) that performs a reset, the response is returned before the effects of the command are complete. Table 106. FileControl API Command Response outcome A response of zero indicates success. Non-zero indicates failure. holdoff Specifies the number of seconds that the web client should wait before attempting more communication with the station. A value of zero will indicate that communication can resume immediately. This parameter is needed because many of the commands will cause the CR3000 to perform a reset. In the case of sending an operating system, it can take tens of seconds for the datalogger to copy the image from memory into flash and to perform the checking required for loading a new operating system. While this reset is under way, the CR3000 will be unresponsive. description Detail concerning the outcome code. Example: 192.168.24.106/?command=FileControl&action=4&file=cpu:davetest.c r1 Response: delete the file davetest.cr1 from the host CR3000 CPU: drive. When html is entered in the FileControl format parameter, the response will be HTML. Following is an example response. 8.6.3.7.3 ListFiles Command ListFiles allows a web client to obtain a listing of directories and files in the host CR3000. ListFiles takes the form: http://ip_address/drive/?command=ListFiles ListFiles requires a minimum .csipasswd access level of 3 (read only). Table 107. ListFiles API Command Parameters format Specifies the format of the response. The values html, json, and xml are valid. If this parameter is omitted, or if the value is html, empty, or invalid, the response is HTML. If this parameter is excluded, or if it is set to "datalogger" uri (uri=dl) or an empty string (uri=), the file system will be sent from the host CR3000.1 1 Optionally specifies the URI to a LoggerNet datalogger station from which the file list will be retrieved. 399
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