Campbell Scientific CR3000 CR3000 Micrologger - Page 99
Sending OS with DevConfig
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Section 7. Installation If problems are encountered with a 2 MB CR3000, sending the OS over a direct RS-232 connection is usually successful. Since sending an OS to the CR3000 resets memory, data loss will certainly occur. Depending on several factors, the CR3000 may also become incapacitated for a time. Consider the following before updating the OS. 1. Is sending the OS necessary to correct a critical problem? -- If not, consider waiting until a scheduled maintenance visit to the site. 2. Is the site conveniently accessible such that a site visit can be undertaken to correct a problem of reset settings without excessive expense? If the OS must be sent, and the site is difficult or expensive to access, try the OS download procedure on an identically programmed, more conveniently located CR3000. Note OS file has .obj extension. It can be compressed using the gzip compression algorithm. The datalogger will accept and decompress the file on receipt. See the appendix Program and OS Compression. 7.6.2.1 Sending OS with DevConfig Figures DevConfig OS Download Window (p. 100) and Dialog Box Confirming OS Download (p. 100) show DevConfig windows displayed during the OS download process. Caution Sending an operating system with DevConfig will erase all existing data and reset all settings to factory defaults. Text in the Send OS tab (figure DevConfig OS Download Window (p. 100) ) lists instructions for sending an operating system to the CR3000. When the Start button is clicked, a file-open dialog box prompts for the operating system file (*.obj file). When the CR3000 is powered-up, DevConfig starts sending the operating system. As shown in figure Dialog Box Confirming OS Download (p. 100), when the operating system has been sent, a confirmation message is displayed. The message helps corroborate the signature of the operating system. 99
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