3 table size and mode, 3 data retrieval, 1 via a communication link – Campbell Scientific CFM100 CompactFlash Module User Manual

Page 19: 2 transporting cf card to computer

Advertising
background image

CFM100 CompactFlash

®

Module

BeginProg
Scan(1,SEC,3,0)
PanelTemp(temp,250)
Battery(Batt)
CallTable

Table1

CallTable

Table2

CallTable

Table3

CallTable

Table4

NextScan
EndProg

7.2.3 Table Size and Mode

The size of each data table in CPU memory is set as part of the DataTable()
instruction and the size of each data table on the CF card is set with the
CardOut() instruction. Because they are set independently, they can be
different. It is important to note that if the CPU memory is set to fill and stop
mode, once a table is full, all data storage to the table will stop. No more
records will be stored to the CPU memory or the card.

7.3 Data Retrieval

Data stored on CF cards can be retrieved through a communication link to the
datalogger or by removing the card and carrying it to a computer.

7.3.1 Via a Communication Link

Data can be transferred to a computer via a communications link using one of
Campbell Scientific’s datalogger support software packages (e.g., PC200,
PC400, LoggerNet). There is no need to distinguish whether the data is to be
collected from the CPU memory or a CF card. The software package will look
for data in the CPU memory and then the CF card.

The datalogger manages data on a CF card as final storage table data,
accessing the card as needed to fill data collection requests initiated with the
Collect button in datalogger support software. If desired, binary data can be
collected using the File Control utility in datalogger support software. Before
collecting data this way, stop the datalogger program to ensure data are not
written to the CF card while data are retrieved. Otherwise, data corruption and
confusion will result.

7.3.2 Transporting CF Card to Computer

With large files, transferring the CF card to a computer may be faster than
collecting the data over a link.

Removing a card while it is active can cause garbled data
and can actually damage the card. Do not switch off the
CR1000 power if a card is present and active.

CAUTION

13

Advertising