Mounting The Cp 340; Cp 340 Slots - Siemens SIMATIC CP 340 User Manual

Mounting the CP 340

4.1

CP 340 slots

Introduction
The following section describes the rules you must observe when positioning the CP 340 in
the rack.
Positioning of the CP 340 in the Rack
The following rules apply when positioning the CP 340 in the rack:
● A maximum of 8 communications modules can be inserted to the right of the CPU.
● The number of pluggable communications modules is limited:
PtP coupling and configuration of CP 340
Manual, 04/2011, A5E00369892-03
– by the current consumption of the CP 340 from the S7-300 backplane bus (depending
on CPU and IM) and
– by the expandability of the CPU (for instance CPU 312 IFM in first tier) or of the
ET 200M (IM 153) in a distributed configuration (single-tier mounting only).
Note
The CP 340 can be operated in expansion tiers only from the following CPU versions:
 CPU314: Product version 6
 CPU614: Product version 6
 CPU315: Product version 3
 CPU315DP: Product version 3
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