Siemens ST PCS 7 Manuel D’Utilisation

Page de 344
Process I/O
Introduction
11/3
Siemens ST PCS 7 · November 2007
11
Ex I/O modules from the ET 200M range
The ET 200M can be run in Ex zone 2/22. The actuators/sensors 
can be positioned 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). FM ap-
provals: Class I, Division 2 and Class I, Zone 2.
Field devices with PROFIBUS PA capability
Using PROFIBUS it is possible to integrate field/process devices 
directly in Ex zones 1, 2, 21 or 22, and sensors/actuators can 
also be integrated in zone 0 or 20. FM approvals: Class I, 
Division 1 and Class I, Zone 0.
Integration of actuators/sensors using ET 200iSP
The ET 200iSP appropriate for gaseous and dusty atmospheres 
can be installed, according to CENELEC II 2 G (1) GD Eex d e 
[ib/ia] IIC T4 directly in the Ex zones 1, 2, 21 or 22 as well as in 
non-hazardous areas. The intrinsically-safe sensors, actuators 
and HART field devices can also be located in zone 0 or 20 if 
necessary.
Intrinsically-safe operator control unit
An intrinsically safe PC operator control unit can be used in haz-
ardous areas, zone 1, 2, 21 or 22, if required. For further details 
on this operator control unit, see Catalog "Add Ons for the SI-
MATIC PCS 7 Process Control System".
Function
Possible online modifications among the process I/Os
ET 200M
• Adding of ET 200M stations
• Adding of I/O modules for the station
• Reparameterization of I/O modules
• Parameterization of connected HART field 
devices with SIMATIC PDM
ET 200iSP
• Adding of ET 200iSP stations
• Adding of modules for the station
• Reparameterization of modules
ET 200S
• Adding of ET 200S stations
PROFIBUS DP, 
PROFIBUS PA
• Adding of PROFIBUS DP stations
• Adding of DP/PA links and field devices
• Parameterization of field devices with 
SIMATIC PDM
© Siemens AG 2007