Campbell Scientific SM4M/SM16M Storage Modules - Manual (Page 32)

Section 6. Storing and Retrieving Datalogger Programs
6-2
The program is stored, retrieved, or erased by referring to a program number
(1...8) in the Storage Module. If the program to be retrieved does not exist in
the Storage Module, the error message ‘E99’ will be displayed.
There are 128 kbytes of memory available for program storage. For example,
you can store one 128 kbyte DLD file or eight 16kbyte files. Flash memory
technology affects the use of memory when storing and erasing programs.
When a program is “ erased” , the space it occupied is not freed until the entire
program storage area is erased. Thus when you erase a program the amount of
free space in the Storage Module program area does not increase. However,
you can reuse the program number to store another program.
The program storage area can be erased either by issuing one of the module
erase/reformat/test commands or by manually deleting each of the programs in
the module. In the latter case, after the last program is erased the module will
proceed to erase and “ tidy-up” the program storage area.
The 21X or CR7 must have only one Storage Module connected
when storing and retrieving programs.
6.3 Using DSP4 Heads Up Display to Store and
Retrieve Datalogger Programs
In addition to real-time monitoring of datalogger measurements, the DSP4
Heads Up Display can be used with the CR10/10X, CR23X, 21X (including
pre-OSX versions with Extended Software) and the CR7 dataloggers to store
and retrieve data and programs. The DSP4 Load and Save program commands
allow loading and saving CR10/10X, CR23X, 21X, and CR7 datalogger
programs from/to the Storage Module.
The DSP4 Flag buttons 1...8 execute the Load or Save command using the
Storage Module as the medium. Up to eight datalogger programs can be saved
in the Storage Module. The program to be saved or loaded is selected by
pressing the appropriate push button switch. Refer to the DSP4 Instruction
Manual for more details.
NOTE