AntiLogPro OEM units can log up to two RS232 data sources
simultaneously. In addition, each unit can log digital events, supply
voltage and environment sensor data (with a supported sensor attached) all
at the same time. To log more than two channels and to log more events
and sensor data, you can combine AntiLogPro OEM units together to form one
large multi-channel RS232 data logger.
You use the menu system to assign a unique bus address value to each
unit used in the system from 1 to a theoretical maximum of 255. Next you
enable the multiple unit mode on each unit. Units are then 'daisy
chained' together via their Auxiliary serial ports to form a multi-unit
communications bus. With the addition of one standard CMOS 3.3V signal to
RS232 line driver circuit, the whole system can now be completely
controlled from a single serial port terminal application on a PC.
The following example shows three units connected together to form a
six channel data logger.
If you don't have available, or don't wish to implement a standard
RS232 live driver circuit in your design, you can simply fit two link
connections on the OEM pin header to assign the line driver normally used
for the secondary serial port on one of the units. The following example
shows a three channel data logger using the RS232 line driver from the
second unit's secondary serial port. As you can see, in this
configuration, no additional hardware is required.
If you are only using the line driver function of the secondary serial
port in this case, and you would like to log CMOS 3.3V UART signals (from
a GPS receiver module for example) then you can still log them on this
secondary channel from the pin header connections, so in fact, you now
have a four channel multiple unit data logger, all with a single serial
port at RS232 line levels in control.
Using the bus assigned address, you can extract data from
individual units after a recording session and talk to each one
individually by 'connecting' to their individual menu systems all down the
one serial port.
Our free to download and use AntiTermPro application has been
designed to provide extensive support for all of our AntiLog product
range. It provide a serial port terminal display (to access the unit's
menu system) and a whole host of other features including data downloading,
media data extraction, unit software upgrades and of course, multiple unit
Simply click on the 'Multiple Unit' button on the right hand side menu
to open the multiple unit display. Once opened, you can select from a
series of tabs to choose the parameters you wish to view in real time.
The following example shows the result of clicking on the 'Media' tab in a
system consisting of three AntiLogPro OEM units.
The next example shows the 'Mode' tab active with all units running in
the record mode.
In the 'Mode' tab for example, you can seamlessly switch between the
operating modes for all units at any time. When the units are in the
playback menu mode, you can click one of the 'Connect' buttons to connect
straight through to an individual unit's menu system so you can make
individual configuration changes per unit.
Please visit this web site's AntiLog
Support software section to access the user guide and installation
setup file for our AntiTermPro support application.