6
CAN related functions
3 Product description
Instruction book, IQAN- MD3
I/O overview
Inputs/Outputs
The IQAN-MD3 module has seven (7)
voltage inputs
VIN-A thru VIN-G for
connection of 0-5 Vdc signals. These inputs can be configured as
digital inputs
for
reading switches.
Voltage inputs
and
digital inputs
share positions, see below.
There is a digital output, DOUT-A, on IQAN-MD3 that may be activated when there is
an error message for the system, such as a short-circuit and input or output interruption.
By connecting the digital output to a warning lamp or audio signal, the driver is alerted
that an error message has been given.
Connect the alarm (audio signal) between pin C2:12 and ground (the battery’s negative
pole). See the illustration below. An active output gives battery voltage (11-32 Vdc) to
the pin. The maximum load is 200 mA.
Connection of DOUT as an alarm output.
CAN related functions
The IQAN-MD3 uses three CAN-buses (CAN = Controller Area Network) to
communicate with IQAN expansion modules, other systems and diagnostics.
(7) Voltage inputs VIN-A, VIN-B, VIN-C, VIN-D.....VIN-G
or
(7) Digital inputs DIN-A, DIN-B, DIN-C, DIN-D...... DIN-G
+BAT CAN-H
CAN-L
PORT 1
-BAT
+VREF
-VREF
PORT 0
CAN-H
CAN-L
+RTC
RS232-DATA IN
RS232-DATA OUT
RS232-READY
MD3
USB-D+
USB-D-
CAN-H/Diag
CAN-L/Diag
IQAN-MD3
DOUT