Specifications
18-452 | OWNER’S GUIDE
CAN BUS interfaces
In terms of hardware, Dewetron systems are available with several different CAN BUS interfaces. However,
90% of the systems delivered have the 2 CAN BUS interfaces that are provided as options from a Dewetron
ORION series A/D card. If you look at the model numbering of our ORION cards, you will see that the last
digit changes according to which options are installed on the card, like this:
model name last digit description
ORION-1616-100 0 (even) the standard card
ORION-1616-101 1 (odd) Adds 2 x CAN BUS interfaces
ORION-1616-102 2 (even) The standard card plus more counters + digital inputs
ORION-1616-103 3 (odd) The standard card plus more counters + digital inputs + 2 x CAN BUS interfaces
ORION-1616-104 4 (even) The standard card plus ADVANCED counters + digital inputs
ORION-1616-105 5 (odd) The standard card plus ADVANCED counters + digital inputs + 2 x CAN BUS interfaces
You can see from the table above that basically any ORION card whose model name ends in an odd
number has the CAN interfaces on it. In addition to the hardware option, you must have the software option
called DEWESoft-OPT-CAN installed.
The actual CAN bus interface connectors installed on your unit are shown in SECTION 4, SIGNAL INPUT
CONNECTORS in this document. That page also shows you how to connect to the CAN BUS, including us-
ing termination resistors if needed.
If you want to use either one of the CAN bus interfaces to connect a Dewetron CPAD2 series module,
please see SECTION 10, CONDITIONERS, CPAD2 within this document.
Your CAN interfaces should be set up already at the factory, however, if you need to check or recongure
the settings, please check the HARDWARE SETUP under the SETTINGS menu. Then click the CAN button
to see the CAN hardware interface setup:
Use the selector to choose the CAN device that is installed within your system. Here is a basic description of
what each entry refers to:
Test CAN (replay mode) - for demonstration and training purposes, you may select this even if you do not
have the CAN software option, and point the software to a CAN bus data le (CSV), which it will replay
through the system for you.