Operator`s manual

Manual

CR10X Storage and Control Module

Box 4: Transfer Data Prior to Re-loading BUOY_METSTAT into CR10X

Although re-installing BUOY_METSTAT does not erase information stored in the logger’s Final Storage

Areas, it is advised to transfer all data to the storage module prior to (re-) loading BUOY_METSTAT into the

CR10X. To this effect, follow the instructions given in paragraph 2.3.

Problem 2: Data has been lost somewhere in the trajectory between logger and computer, or, has accidentally

been deleted from the database.

Remedy 2: Due to the applied ring configuration of the logger’s RAM, data are not erased from Final Storage

after data dump. Only when the memory is full, old information is written over by new one. Given the expected data

output of BUOY_METSTAT and the size of the logger’s RAM, data are preserved for about 8 months in Final Storage

before being written over. Consequently, in the unlikely case that data are lost somewhere in the trajectory between

Met Station and computer, or, if data are accidentally deleted from a database, it may still be recovered from the

logger’s RAM.

To down load “old” data from CR10X to SM4M, type in the following CR10KD keyboard instructions (for presentation

purposes given between double quotes):

“*8” (to activate Manual Data Dump using the star-eight mode)

Since BUOY_METSTAT only uses Final Storage Area 1, star-eight mode automatically continues with the

selection of the output device. The display will show “01”. Type the following command:

“71” (this is the code for the SM4M storage module)

“A” (keyboard equivalent for ENTER)

The display shows a number. This is the Storage Module Pointer (SPTR), which represents the location up to

which data have been downloaded in previous dump sessions. As a default, this is the starting point for the next data

transfer exercise. However, in this case the user must manually change the SPTR. To transfer the complete Final

Storage to the storage module, type in:

“A” (keyboard equivalent for ENTER)

The display shows a number; which is the address of the last occupied slot in the Final Storage Location,

containing the most recent measurement value. As above, it concerns a pointer and is called the Data Storage

Pointer (DSP). Write down this number. Type in:

“B” (to go back to the previous step in the “star-eight” mode)

As before, the display shows a number, now representing the SPTR. To change the location from where data

transfer will start, type in the DSP added with one. In this way the full Final Storage will be transferred to the SM4M.

Continue by typing in:

“A” (keyboard equivalent for ENTER)

The display shows “04”. To start data transfer, type:

“1” (in fact, any number would do)

“A” (keyboard equivalent to ENTER)

The actual search for the lost information should be done using the SPLIT module of the PC208W Data Logger