Siemens SIMATIC Distributed I/O System DP/ASi Link Specifiche Pagina 68

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Installation
4-4
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
Length of the Rails
Depending on the ET 200M installation you have, you can use the following rails:
Rail for ...
Usable length for Remarks
Standard Module change
during operation
modules
160 mm
482.6 mm
530 mm
830 mm
482.6 mm
530 mm
620 mm
120 m
450 mm
480 mm
580 mm
780 mm
Comes with fixing holes
2000 mm 2000 mm Cut to length required Fixing holes must be drilled
(see Section 4.2.1)
4.1.3 Arrangement of the Modules in an ET 200M Configuration
Rules
The following rules apply to the arrangement of the modules in an ET 200M:
An ET 200M can only be installed on one mounting rack (rail), because coupling
to other mounting racks via interface modules is not permissible.
A maximum of 8 signal modules, function modules or communication
processors can be installed to the right of the IM 153-x.
Figure 4-3 shows the arrangement of the modules in an ET 200M configuration
with eight S7-300 modules.
PS IM 153-x S7-300 modules
Figure 4-3 Arrangement of the modules of an ET 200M
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