Product Description
1.3 Components for a Point-to-Point Connection with the CP 341
CP 341 Point-to-Point Communication, Installation and Parameter Assignment
22 Manual, 09/2008, A5E02191071-01
1.3 Components for a Point-to-Point Connection with the CP 341
To establish a point-to-point connection between the communication processor and a
communication partner, you require certain hardware and software components.
1.3.1 Required Hardware Components
Hardware components
The following table lists the hardware components for establishing a point-to-point
connection with the CP 341.
Table 1- 3 Hardware components for a point-to-point connection
Component Function Illustration
Rack (mounting rail) ... provides the mechanical and electrical
connections of the S7-300.
Power supply module (PS) ... converts the line voltage (120/230 V AC) into
the operating voltage of 24 V DC required to
supply the S7-300.
Central processing unit (CPU)
Accessories:
• Memory card
• Backup battery
... executes the user program; communicates with
other CPUs or with a programming device via the
MPI interface.
Communication processor ... communicates with a communication partner
via the interface.
Standard connecting cable ... connects the CP 341 communication processor
to the communication partner.
PG cable ... connects a CPU to a programming device/PC.
Programming device (PG) or PC ... communicates with the CPU of the S7-300.
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