System Overview; Basic Assembly Of The I/O Station - Siemens SIMATIC ET 200SP HA System Manual

System overview

3.1

Basic assembly of the I/O station

The following shows the basic assembly of an I/O station for connecting devices in the hazardous
area.
Example:
Example configuration of the I/O station with Ex module group (Page 20)
Basic assembly of the I/O station
The basic assembly of the distributed I/O system provides the interface to the automation
system.
Possible basic assembly:
• SIMATIC ET 200SP HA
• SIMATIC ET 200SP
Rules for configuring the I/O station (Page 37)
Requirement for connecting devices in the hazardous area
Devices in the hazardous area in Ex Zones 1 and 0 can be connected to the I/O station if these
devices are connected to an Ex module group. Devices located in hazardous areas must be
intrinsically safe (sensors, actuators and HART field devices).
Components of the Ex module group:
• Ex BaseUnits
• Ex power module
• Ex I/O module
Deployment zones (Page 35)
Additional information
• Special conditions for safe use (Page 37)
• You can find information on modules in the newsletter.
• You can find information about the existing product range in the current catalog.
Modules for devices in a hazardous area
System Manual, 04/2021, A5E50165138-AA
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