Using the IntelliLogger™
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3 I
NTERFACE
M
ODULES
O
VERVIEW
To expand the input and output channel capability of the IntelliLogger, one or more Interface
Modules can be added to an IL-80, IL-90 or IL-20 System Base. Additional Interface Modules are
added by connecting them in a daisy-chain wiring method to the System Base via the
IntelliLogger BBus.
BB
US
I
NTERCONNECT
The BBus is a serial data link for communication between the IntelliLogger System Base and one
or more Interface Module(s). In addition to communication, it also provides a limited amount of
power for powering up to approximately 5 modules.
Modules that are connected on the BBus must be assigned unique Addresses such that
communications can be routed correctly.
Note:
The IntelliLogger model IL-10… although equipped with a
BBus physical connector does not have BBus communication
capability.
Figure 3-1; IL-80 shown with BBus connected external ILIM-7 Module
I
NTERNAL
I
NTERFACE
M
ODULE
BB
US
C
ONNECTION
Some models of the IntelliLogger have Interface Modules integrated into their enclosure… for
example the IL-80 has an integrated internal ILIM-7 module. Although the module is in the
same enclosure as the System Base, it still utilizes the BBus interconnection scheme although
the physical connection is inside the enclosure rather than outside via a BBus cable.
Internal Interface Modules have their BBus address pre-set to ‘00’.
