Installing I/O Modules - Siemens SIMATIC S7-1500 System Manual

5.6

Installing I/O modules

Introduction
The I/O modules are installed following the CPU. I/O modules form the interface between the
controller and the process. The controller detects the current process state via the connected
sensors and actuators, and triggers the corresponding reactions.
Requirements
The following preconditions have to be fulfilled to mount an I/O module:
● The mounting rail is installed.
● The CPU is installed.
● In the module / CPU located on the left next to the I/O module, a U-connector is inserted
Tools required
Screwdriver with 4.5 mm blade
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
on the back right.
Installation
5.6 Installing I/O modules
57