Campbell Scientific CR3000 Micrologger - Manual (Page 345)

Section 8. Operation
345
Read More! More information on string variable-memory use and conservation is
available in String Operations
(p. 241).
8.3.3 Memory Reset
Four features are available for complete or selective reset of CR3000 memory.
8.3.3.1 Full Memory Reset
Full memory reset occurs when an operating system is sent to the CR3000 using
DevConfig or when entering 98765 in the Status table field FullMemReset. A
full memory reset does the following:
• Clears and formats CPU: drive (all program files erased).
• Clears SRAM data tables.
• Clears Status-table elements
• Restores settings to default.
• Initializes system variables.
• Clears communications memory.
Full memory reset does not affect the CRD: drive directly. Subsequent user
program uploads, however, can erase CRD:.
Operating systems can also be sent using the program Send feature in datalogger
support software
(p. 76).
Beginning with CR3000 operating system v.16, settings
and status are preserved when sending a subsequent operating system by this
method; data tables are erased. Rely on this feature with caution, however, when
sending an OS to CR3000s in remote and difficult-to-access locations.
8.3.3.2 Program Send Reset
Final Storage
(p. 456)
data are erased when user programs are uploaded, unless
preserve / erase data options are used. Preserve / erase data options are presented
when sending programs using File Control Send
(p. 456)
command and CRBasic
Editor Compile, Save and Send
(p. 453).
See Preserving Data at Program Send
(p.
115)
for a more-detailed discussion of preserve / erase data at program send.
8.3.3.3 Manual Data-Table Reset
Data-table memory is selectively reset from
• Support software Station Status
(p. 468)
command
• integrated keyboard / display: Data | Reset Data Tables
8.3.3.4 Formatting Drives
CPU:, USR:, USB:, and CRD: drives can be formatted individually. Formatting a
drive erases all files on that drive. If the currently running user program is found
on the drive to be formatted, the program will cease running and any SRAM data