Guidelines for Station Planning
D301087 0308 - BL20 CANopen6-2
Random Module Arrangement
The arrangement of the I/O-modules within a BL20 station can basi-
cally be chosen at will.
Nevertheless, it can be useful with some applications to group
certain modules together.
Complete Planning
The planning of a BL20 station should be thorough to avoid faults
and increase operating reliability.
Maximum System Extension
A BL20 station can consist of a gateway and a maximum of 74
modules in slice design (equivalent to 1 m in length of mounting rail
including the end bracket and end plate). The maximum number of
modules is less when using block modules (1 block module is equiv-
alent to 8 modules in slice design).
Note
The mixed usage of base modules with screw connections and base
modules with tension clamp connections requires a further power
supply module to be mounted. Thereby, it must be ensured that the
base modules are fitted with the same connection technology
(screw or tension clamp) as the power supply module.
Attention
If there are more than two empty slots next to one another, the com-
munication is interrupted to all following BL20 modules.
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