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DATA LOGGER MANUAL
We recommend the use of the USB-connection
USB
over the wirelesss function. This is because of possible
drop outs in communication. When a firmware upgrade procedure is interrupted, the upgrade will fail, but
the unit continues to operate, with the previous version. The USBUSB connection is faster and more reliable.
4.10.3 Firmware
ware upgrade over the air
It is also possible to perform a firmware upgrade over the air. For this you must use the software-package
software
“terminal link”. It allows you to modify or upgrade your data logger from remote. For more information
consult your local ydoc dealer.
4.10.4 Firmware Driver limitations
The data logger is equipped with various drivers, for several tasks. The number of total drivers is limited
to 16. This means you can choose maximum 16 drivers from all the drivers available. Each driver can
handle (collect or send) a number of parameters. The total number of parameters is limited to 64. So,
theoretically, the data logger can handle up to 16 sensors with each 4 parameters. But in this case there
is no output possible. In most cases two or three drivers
drivers are needed for minimum operation (internal
driver, tcp output-driver, or email--driver). When a user has an additional analog sensor, it will take a driver
as well.
Example:
A user wants to connect a large number of INW CT2X sensors to an ML-2013
2013. This sensor measures
temperature and conductivity. So each sensor “uses” two parameters. Also he likes to send the data via
FTP, and he enables the following internal sensors: Rest Capacity, Battery Voltage, and Current. So,
besides the Sensor drivers there are
a 2 drivers needed:
-
Internal Driver
Output Driver
So the maximum number of Sensor-drivers
Sensor
is: 16 – 2 = 14
So there are 14 Sensor-drivers
drivers left for use with the CT2x sensors.
The total number of parameters is: 14 * 2 + 3= 31
So the number of parameters is no problem (31 < 64)
He can connect 14 CT2X sensors max.
4.10.5 Power Switch Limitations
The Power Switch is capable of powering sensors up to 200 mA. The output voltage is 12 Volts DC.
4.10.6 Modem
The modem inside the ML-2012,
2012, ML-2013
ML
and ML-215 is capable of GPRS
S and GSM communications. It
has quad band support, so it can be used worldwide. For selecting the proper frequency band, use the
“modem settings” in the configuration menu. In most cases GPRS communication is requested, so use a
GPRS enabled SIM-card to inhibit
nhibit this operation. Consult your local telecom provider for the right SIMSIM
Card and – settings. If GSM communication is requested, use a GSM-DATA
GSM DATA subscription. GSM
communication is suitable for modem dial in communication. We strongly advise to activate this option in
the SIM cards used in the logger. This is often used to re-configure
re configure a logger, remotely, or to monitor
actual values. In most cases, normal GPRS communication is sufficient for the operation of the data
logger.
The modem inside the ML-315 iss capable of 3G communication and is available for the EMEA, APAC and
NA regions.
Manufacturers of low power instruments
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