SIEMENS
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Siemens PM 21 · 2017
SIMOTION system components
I/O components
Distributed I/O
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Overview
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Solutions in the control cabinet (IP20)
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SIMATIC ET 200SP:
The SIMATIC ET 200SP distributed I/O system is a scalable
and extremely flexible distributed I/O system for interfacing
the process signals to a central control system via PROFINET
and PROFIBUS. The distributed I/O system is particularly easy
to use and, with its compact design, offers maximum economy
in the control cabinet. High speed and transmission rates
provide significantly stronger performance than conventional
systems.
•
SIMATIC ET 200MP:
The modular SIMATIC ET 200MP I/O system with high channel
densities based on the SIMATIC S7-1500 design permits the
shortest bus cycle times and fastest response time even with
large volumes of data.
•
SIMATIC ET 200S:
The finely scalable I/O system for control cabinet installation
and time-critical applications in particular; including motor
starters, safety technology and individual grouping of load
groups.
•
SIMATIC ET 200M:
The modular I/O system with high channel densities based on
the SIMATIC S7-300 design.
Distributed I/O in the control cabinet (IP20)
SIMATIC ET 200SP
The scalable SIMATIC ET 200SP I/O system is a highly flexible modular I/O system with IP20 degree of protection.
Via Interface Modules with PROFINET or PROFIBUS interface it can exchange I/O data of the connected
I/O modules with a higher-level control system. ET 200SP components are available as SIPLUS version for
extreme requirements and a high degree of ruggedness.
Design
The ET 200SP has a very compact design and makes optimum use of the available space in the control cabinet.
Depending on the Interface Module used, up to 64 modules, each with a maximum of 16 signals, can be
configured. The depth is approx. 75 mm (2.95 in).
Components
An ET 200SP station consists of an Interface Module (IM) for connecting to PROFINET or PROFIBUS, the
I/O modules, and a server module that terminates the station. The modules are plugged into passive Base Units
(BUs) that in turn are mounted on a standard DIN rail.
The Base Units (BUs) connect the modules of the ET 200SP station electrically and mechanically with each other.
The terminal box of a Base Unit can be simply replaced in the case of terminal damage, for example.
The PROFINET connection is via bus adapters (BAs) on the IM with which the connections and physical
characteristics can be selected freely in accordance with the requirements, e.g. RJ45 connector or direct
connection.
Interface Module
:
The Interface Module connects the ET 200SP to PROFINET or PROFIBUS and exchanges data between the
higher-level controller and the I/O modules.
I/O modules
:
An I/O module determines the function at the terminals. The controller uses the connected sensors to determine
the current process state and initiates corresponding responses via the connected actuators. Some I/O modules
have expanded functions, which to some extent are also designed as an independent operating mode.
I/O modules are divided into various module types, with the fail-safe versions being identified by a preceding "F-"
and a yellow module enclosure. The I/O modules are 1, 2, 4, 8 and 16-channel modules and permit the scalable
and cost-optimized design of the ET 200SP. Digital and analog input/output modules, technology modules,
(counting, positioning, weighing, time-based I/O with μs-precise time stamping of the signals for cam and
measuring input applications), communication modules and special modules are available.
Configuration, parameter assignment and diagnostics
The ET 200SP is configured and parameterized via STEP 7 or the TIA Portal. Depending on the I/O module
selected, the user has comprehensive diagnostic information at his disposal.
© Siemens AG 2017