Connecting; Rules And Regulations For Operation - Siemens SIMATIC ET 200AL System Manual

Connecting

5.1

Rules and regulations for operation

Introduction
Depending on the area of application, the IO-Link I/O modules, as an integral component of a
system, must adhere to special rules.
This section gives an overview of the most important rules you must follow when integrating
the IO-Link I/O modules in a plant or system.
Specific application
Observe the safety and accident prevention regulations that are applicable to specific
applications, for example, the Machinery Directive.
EMERGENCY-STOP device
Emergency Stop devices according to IEC 60204-1 (corresponds to DIN VDE 0113-1) must
remain effective in all operating modes of the system.
Excluding hazardous system conditions
Hazardous operating states must not occur in any situation, but especially:
• When the system restarts after a voltage dip or power outage
• When the IO-Link I/O modules start up after interruption of the IO-Link communication
If necessary, force an EMERGENCY STOP.
An uncontrolled or undefined startup is not permitted after the "EMERGENCY STOP" is
unlocked.
Cables and wires
Note that the utilized cables (including plugs) are approved for a continuous operating
temperature of 30 °C above the operation temperature of the IO-Link I/O modules.
The cables and wires used must be rated for at least the supply voltage used.
External fuses/switches
External fuses and switches must be installed so that they meet the standards for cable and
device protection applicable to your application.
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IO-Link I/O modules
System Manual, 10/2020, A5E48755395-AA
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