Properties
Benefits
IEEE tags
Analog modules with HART support up to four
IEEE tags in IEEE754 format
Redundancy of IM 152 (V2.0 and higher)
● on S7-DP masters (e.g. S7-400H)
● with software redundancy
Redundancy of the power supply PS
with TM-PS-A/ TM-PS-A UC
DP master
All ET 200iSP modules support communication with DP masters that are compliant with
IEC 61784-1:2002 Ed1 CP 3/1 and operate with "DP" transmission protocol (DP stands for
distributed peripherals or distributed I/O).
1.3
ET 200iSP in the Hazardous Area
Properties of zones
Hazardous areas are classified into zones. The zones are distinguished according to the
probability of the existence of an explosive atmosphere.
The ET 200iSP can be used in the Zone 1/ 21, Zone 2/ 22 hazardous areas, and in the safe
area.
ET 200iSP supports the connection of intrinsically safe sensors, actuators and HART field
devices located in Zone 0/20 and in the safe area. The sensors, actuators, and HART field
devices must be certified for operation in the corresponding hazardous areas.
You will find an overview of the zone divisions in the following table:
Table 1-3
Classification of zones
Hazardous areas
Explosion hazard
Example
Zone 0/ 20
Long-term, frequent or permanent
presence of explosive gas or dust
atmosphere
Within containers.
Zone 1/ 21
Infrequent presence of potentially
explosive gas or dust atmosphere
In the region of openings for filling and
emptying.
Zone 2/ 22
Rare or short-term presence of po‐
tentially explosive gas or dust atmos‐
phere
Areas bordering on zone 1/ 21
For more information, refer to the "Principles of explosion protection (
support.automation.siemens.com/WW/view/en/12521844
Product overview
1.3 ET 200iSP in the Hazardous Area
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
21