Siemens SIMATIC Operating Instructions

Wiring
4.4 Requirements for Sensors and Actuators
ET 200pro Distributed I/O System - Fail-Safe Modules
32 Operating Instructions, 05/2007, A5E00394073-02
WARNING
If the actuators are operated at voltages greater than 24 V DC (for example, 230 V DC) or if
the actuators switch higher voltages, safe isolation must be ensured between the outputs of
a fail-safe output module and the components conducting the higher voltage (in accordance
with EN 50178).
This is generally the case for relays and contactors. Particular attention must be paid to this
requirement for semiconductor switching devices.
See also
Assignment of PROFIsafe Address (Page 24)
Technical Specifications for the 8/16 F-DI DC24V PROFIsa
fe Electronic Module (Page 84)
Technical Specifications for the 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electroni
c Module
(Page 103)
Technical Specifications for the F-Swit
ch PROFIsafe Elect
ronic Module (Page 136)

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)