Product manual

Section 1. NL115 Ethernet/CompactFlash
®
Module Overview
Step 3 – Connect
You are now ready to Connect to your datalogger using the LoggerNet
Connect screen.
Datalogger program transfer, table data display, and data collection are now
possible.
1.5.3 Programming the Datalogger to Send Data to the NL115
The CardOut instruction is used in the datalogger program to send data to the
CF card. The CardOut instruction must be entered within each DataTable
declaration that is to store data to the CF card. The file is saved to the card
with the name stationname.tablename and a .DAT extension.
The CardOut instruction has the following parameters:
StopRing: A constant is entered for the StopRing parameter to specify whether
the DataTable created should be a Ring Mode table (0) or a Fill and Stop table
(1).
Size: The Size parameter is the minimum number of records that will be
included in the DataTable. If –1000 is entered, the size of the file on the card
will be the same as the size of the internal table on the datalogger. If any other
negative number is entered, the memory that remains after creating any fixed-
size tables on the card will be allocated to this table. If multiple DataTables
are set to a negative number, the remaining memory will be divided among
them. The datalogger attempts to size the tables so that all of them will be full
at the same time.
In the following example, the minimum batt_voltage and a sample of PTemp
are written to the card each time the data table is called. The StopRing
parameter is 0 for Ring mode. This means that once the data table is full, new
data will begin overwriting old data. The size parameter is –1, so all available
space on the card will be allocated to the table.
DataTable (Table1,1,-1)
CardOut (0 ,-1)
Minimum (1,batt_volt,FP2,0,False)
Sample (1,PTemp,IEEE4)
EndTable
To prevent losing data, collect data from the CF card
before sending the datalogger a new or modified program.
When a program is sent to the datalogger using the Send
button in the Connect screen of LoggerNet or PC400, an
attribute is sent along with the program that commands the
datalogger to erase all data on the CF card from the
currently running program.
CAUTION
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