20
Addressing
Instruction book, IQAN- MD3
Addressing
IQAN-MD3 use of an ID-Tag
In IQANdesign 3.0 and higher software, more than one IQAN master module can be
used together in a multi-master system. The master modules are each given a unique
address by using an ID-Tag. The value of the ID-Tag identifies the master and will
enable a single project application to be loaded into more than one master module over
the CAN bus. The functionality needed for each master is loaded based on the ID-tag
address. By default, if no ID-tag is installed, the MD3 will be address 0.
Identification of an IQAN-MD3 by address
For normal operation of an IQAN-MD3 in a single master system, the ID-Tag is not
used. It is only needed when the IQAN-MD3 is used in a multi-master system, and an
address other than ’0’ is needed. The connection of an ID-Tag bVREF and
ADDR-L will assign an address to the IQAN-MD3 master module. The desired
functionality based on address is built into the project file using IQANdesign software.
For more information, please refer to the IQANdesign user manual.
It is the combination of
address
and
type
that gives each master module a unique
identification.
The maximum number of MD3 addresses is 6, denoted as addresses 0, 3, 4, 5, 6, 7
respectively.
N
OTICE
Addresses 1 and 2 are reserved and can not be used for addressing an IQAN-MD3.
In order to assign any IQAN-MD3 a unique address, an
ID-Tag
will have to be
connected to the posVREF and ADDR-L.
Connecting of Id-Tag.
EXAMPLE
If having an IQAN-MD3 master module with an ID-Tag of address 3, the system
will recognize an address value of 3 to the application. You could have one MD3-0,
one MD3-3 and one MC3-1 (or some other combination of master units) in the same
multi-master system.
ID-Tag
ADDR-L
+VREF
IQAN-MD3
