Product Description
1.2 Components Required for a Point-to-Point Connection with the CP 440
Point-to-point connection CP 440 Installation and Parameter Assignment
Manual, 09/2007, A5E00057742-03
15
1.2
Components Required for a Point-to-Point Connection with the CP 440
1.2.1
Required Hardware Components
Hardware Components
The following table lists the hardware components required for establishing a point-to-point
connection with the CP 440.
Table 1-2
Hardware Components for a Point-to-Point Connection with the CP 440
Components
Function
Diagram
Rack
... provides the mechanical and electrical
connections of the S7-400.
Power supply module (PS)
... converts the line voltage (120/230 V
AC or 24 V DC) into the operating voltage
of 24 V and 5 V DC required to supply the
S7-400.
Central processor unit (CPU)
Some CPU versions cannot be used with
the CP 440.
Accessories: Memory card, backup
battery
... executes the user program;
communicates via the MPI interface with
other CPUs or with a programming
device.
CP 440 communication processor
... communicates via the interface with
one or more communication partners.
Standard cable
... connects the CP 440 communication
processor to the communication partner.
Programming device cable
... connects a CPU to a programming
device/PC.
Programming device or PC
... communicates with the CPU of the
S7-400.
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