S7-400 - Configuration Variants - Siemens SIMATIC S7-400 Configuration And Use Manual

SIMATIC S7 - an Overview
1.4

S7-400 - Configuration Variants

Configuration Variants for various Automation Task
There is a suitable solution for every automation task. This means to cover a large
range of demands for quantity and connection with the process by choosing the
appropriate configuration variant.
Table 1-2 provides examples of configuration variants of the S7-400.
Table 1-2 Configuration variants of the S7-400
Selection criteria
Digital approx. 2000
input/outputs*
Analog approx. 1000
input/outputs*
Number of maximum 72
modules
Distance 3 m
(cable length)
between first and
last rack
The solution for Configuration with
your task 4 racks and local
link
*
The number only applies when only this type of module is used. This table is only intended to give you an
overview of the information. Mixed combinations are also possible, of course. The decision depends on
the type pf processes to be controlled and the local, on-site conditions.
1-8
Medium-sized Large plant
plant
approx. 11000
approx. 5500
maximum 396
up to 605 m
between first and
last rack
Configuration with
22 racks and
remote link
Large plant with distributed signal
monitoring via PROFIBUS DP
more than 11000
more than 5500
more than 396
up to 50 m
between 2 devices
up to 1000 m
with RS485
repeater
Communication via
MPI interface
Automation System S7-400 Configuration and Use
up to 23800 m
between 2 devices
Communication via
PROFIBUS DP
A5E00442711-02