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
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
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 operation.
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
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
Please visit this web site's AntiLog Support software section to
access the user guide and installation setup file for our
AntiTermPro support application.