Siemens SIMATIC S5-115F - Connecting Digital Modules; Connecting Analog Modules

Installation Guidelines S5-115F Manual
3.3.2 Connecting Digital Modules
Floating digital modules are available for the S5-115F. An optocoupler isolates the external
voltages from the internal voltages.
Sensor
M
L+
Floating
Module
Figure 3-26. Connection to Floating Modules
Feedback modules are required for digital modules used in safety-related systems ( 10.9).
3.3.3 Connecting Analog Modules
See Section 6 and 10.11 to 10.14 for a description of connecting and starting up analog modules.
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