Siemens SIMATIC ET 200SP - Quick Start

Application planning
4.1 Selecting the BaseUnit for I/O modules
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
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4.1.2 Analog modules with temperature measurement
Selection of a suitable BaseUnit
①
Light-colored BaseUnit: Configuration of a new potential group, electrical isolation from adja-
cent module on the left. The first BaseUnit of the ET 200SP is usually a light -colored BaseUnit
for feeding the supply voltage L+.
Dark-coloredBaseUnit: Continuation of the internal power and AUX buses from the adjacent
module on the left.
②
Additional terminals: 2×5 internally bridged terminals for individual use up to 24 V DC/2 A
Example: Sensor supply for AI 4×U/I 2-wire ST
Figure 4-2 Analog modules with temperature measurement