SIEMENS
2/706
Siemens IK PI · 2015
PROFINET/Industrial Ethernet
SIMATIC PCS 7 process control systems
Process I/O
SIMATIC ET 200M for SIMATIC PCS 7
2
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Overview
Within the SIMATIC ET 200 range, ET 200M represents the main
series of distributed I/O systems for process control applications
with SIMATIC PCS 7.
The ET 200M I/O system offers a comprehensive range of I/O
modules of S7-300 design, including ones with special I&C func-
tions:
•
Standard analog and digital modules
•
Redundant I/O modules
•
I/O modules with enhanced diagnostics capability
•
Ex I/O modules
•
Controller and counter modules
•
HART modules
•
F-modules for safety-related applications
When using active bus modules, faulty I/O modules can be re-
placed while the plant is in operation (RUN) without influencing
adjacent modules (hot swapping function).
The following actions are possible with the automation system
in RUN:
•
Adding new modules to the station
•
Re-configuration of modules
•
Addition of ET 200M stations
•
Configuration of connected HART field devices with
SIMATIC PDM
Note:
Apart from these selected modules, it is also possible to use –
with limitations in functions - all other I/O modules from the
current range of S7-300 signal modules.
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Design
An ET 200M remote I/O station comprises:
•
1 or 2 (redundant) power supply modules (can be omitted in
the case of a central 24 V DC supply for the plant)
•
Up to 2 interface modules:
- 1 or 2 (redundant) IM 153-2 High Feature for PROFIBUS DP
connection or
- 1 IM 153-4 PN High Feature for PROFINET connection
•
Up to 12 I/O modules for connection of sensors/actuators
All I/O modules have optical electrical isolation from the
backplane bus. Up to 12 I/O modules can connected to an
IM 153-2 High Feature or IM 153-4 PN High Feature interface
module. The IM 153-2 High Feature interface modules can also
be configured redundantly.
In addition to the standard SIMATIC S7 I/O modules, special I/O
modules with diagnostics capability offer the following functions,
among others:
•
Channel-based diagnostics, e.g. open-circuit, short-circuit,
limit violations
•
Internal module monitoring, e.g. configuration error,
RAM error, tripped fuse
•
Flatter monitoring for sensors
•
Pulse stretching
•
Output of a selectable substitute value on failure of the central
processing unit
In the event of a fault, the modules with diagnostics capability
automatically pass on the corresponding message to the opera-
tor station, permitting fast and simple troubleshooting.
The ET 200M stations can be used in standard environments
and also in Ex zone 2/22. The actuators/sensors can be posi-
tioned in Ex zone 1/21 when suitable Ex input/output modules
are used. Hot swapping of I/O modules within Ex zone 2 is
allowed with the right permit (e.g. fire certificate).
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Technical specifications
You can find detailed technical data on the ET 200M and
S7-300 I/O modules in the following places:
•
Catalog ST 70 or
•
Industry Mall/CA 01 under "Automation engineering –
Automation systems – SIMATIC industrial automation systems
– SIMATIC ET 200 distributed I/O"
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Options
SIPLUS extreme range for extended temperature ranges
and corrosive environments
The "standard" properties of an individual device or system are
often insufficient for harsh environmental conditions, applica-
tions in corrosive environments or extreme temperature ranges.
Depending on the location of use, the result could be limitations
in functionality or operational safety or even total failure of the
plant.
The SIPLUS extreme range offers individually adapted standard
products which permit retention of the functionality of your plant
or process even under extreme conditions of use. These in-
clude:
•
Ambient temperature range from -25 to +60/+70 °C
•
Condensation, high humidity
•
Increased mechanical stress
•
Extreme loading by media, e.g. toxic atmospheres
•
Voltage ranges deviating from the standard
•
Increased degree of protection (dust, water)
You can find a summary of the available range of products
classified according to their special properties on the Internet.
The corresponding SIPLUS product is assigned there to the
standard product:
Note:
SIPLUS products are also included in the ST 70 Catalog.
© Siemens AG 2014