108 Operation
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
3.5 General notes on working with imc CANSAS modules
3.5.1 Readable configuration
This enables a configuration to be written into a module in such a way that it can later be read out again
by the software. This means that a module's configuration can be adopted in the database although it
was created using a different PC. See the description of the Options dialog .
The feature Readable configuration is generally not needed if there is a database containing the current
or desired configuration of the imc CANSAS modules. The feature is needed if modules are configured in
one place and later taken to be used somewhere where there's no database. If there is at least imc
CANSAS software where such a model is used, the setting can be read back in order to see how the
module is really configured.
The imc CANSAS-module property Readable configuration is not available to all modules (see
features and modules ).
If the software version is changed, and thus also the imc CANSAS firmware, after a configuration
had been exported to the PC, then the configuration might not work properly when it is re-
imported by the device.
Error-free re-import is only ensured if one of the following conditions is met: if the imc CANSAS
module is connected via the imc USB interface, or if the imc CANSAS module is connected via an
imc measurement device having a CAN-interface.
3.5.1.1 Readable configuration for µ-CANSAS-HUB4
The determining factor for the arrangement of single-channel imc µ-CANSAS modules within the
messages of a imc µ-CANSAS-HUB4 module is the ID of the input (IN1,IN2,IN3,IN4) at which the µimc
CANSAS module is connected.
With the readable configuration, the input ID positions within imc µ-CANSAS-HUB4 module’s messages
are saved. The position here refers to the info of whether the first, second, ... module within the message
is involved.
Upon reading of the configuration, the information for the modules connected at the inputs is read in the
order of their respective positions. For the positioning within the message, the serial number is not
relevant. What is decisive is the input at which the µimc CANSAS module is connected. This means that
nonfunctioning µimc CANSAS modules can be exchanged with other appropriately configured µimc
CANSAS modules without making any new settings.
The exact positions within the messages, however, may change, as illustrated by the following example:
Two modules µ-CAN-V1_1 and µ-CAN-V1_4 are configured as readable.
µ-CAN-V1_1 24 Bit (Input 1)
µ-CAN-V1_2 16 Bit (Input 2)
µ-CAN-V1_3 16 Bit (Input 3)
µ-CAN-V1_4 32 Bit (Input 4)
Next, the modules are exchanged. After reading from the modules, the following arrangement results:
µ-CAN-V1_4 32 Bit (Input 1)
µ-CAN-V1_2 16 Bit (Input 2)
µ-CAN-V1_3 16 Bit (Input 3)
µ-CAN-V1_1 24 Bit (Input 4)
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