Components - Siemens SIMATIC S7-1500 System Manual

2.2

Components

Components of the S7-1500 automation system
The following table provides an overview of the most important components of the S7-1500
automation system:
Table 2- 1 Components of the S7-1500 automation system
Components
Mounting rail
PE connection element
for mounting rail
System power supply
(PS)
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
The mounting rail is the rack of the S7-1500 automation system.
Additional components (modules from the S7-1200 and ET 200SP
ranges, terminals, circuit breakers, small contactors or similar
components) can be mounted directly on the integrated standard
mounting rail in the lower part of the mounting rail. You can use the
entire length of the mounting rail in the assembly (marginless
assembly).
The mounting rails may be ordered as accessories (Page 212).
The set of screws is threaded into the mounting rail's T-profile groove,
and is required for grounding the mounting rail.
The set of screws is contained in the scope of delivery of the mounting
rails in the standard lengths (160 to 830 mm), and may be ordered as
an accessory (Page 212).
The system power supply is a diagnostics-capable power supply
module, that can be connected with the backplane bus using a
U connector.
A system power supply is required, if the power fed from the CPU into
the backplane bus is not sufficient to supply the connected modules
with power.
System power supplies are available in various models:
PS 25W 24V DC
•
PS 60W 24/48/60V DC
•
PS 60W 120/230V AC/DC
•
A power cable connector with coding element and a U connector are
included in the scope of delivery of the system power supply, and may
be ordered as a spare part (Page 212).
Function
Product overview
2.2 Components
Diagram
17