IMC CANSAS - Using CANSAS in a Rack

116 Operation
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
The illustration shows typical Eprom contents. The actual content can be overwritten by the user. The
horizontal position is the slot's position number within the racks, where 1 refers to the leftmost slot.
The slot information is saved permanently in the database and upon exporting. In consequence, this
information is also available offline.
Note
The slot information is also available via the menu item Module - Sensors- Read characteristic
values (from sensor-Eprom)...
The slot recognition is not imported automatically when integrating new devices
3.5.5.2 Using CANSAS in a rack
Power: Make sure to provide adequate power and appropriate voltage from the adapter which
supplies the rack. We recommend a voltage of at least 24 V so that a small current and thus only
moderate voltage drops at the backplane will result.
Plugging-in (Hotplug): While imc CANSAS-modules are already docked in the rack and measuring,
no other modules should be inserted. Modules should always be either inserted into or removed
from the rack with the power supply off. However, if it becomes necessary to insert modules during
running operation, note that the modules' first contact with the terminal's supply voltage will
produce a considerable inrush current. This current can cause a brief collapse of the voltage supply
to the other modules, which means that undisturbed operation cannot be ensured in such cases.
CAN-plugs: In the standard rack from imc, each slot has two CAN-Bus plugs. These two plugs are
designed so that the inserted imc CANSAS-module receives the complete CAN-Bus and supply
connection. But these plugs are not both equipped as per CiAâ. In particular, the CAN-Bus is
connected to only one of the two plugs. Only imc CANSAS modules should be connected at this
plug. It is important not to use these plugs to, for instance, attach a Reset-plug or a CAN-Bus cable
as a stub line.
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