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Application example: Safety Functions
A.2 Components and settings used
A.2
Components and settings used
Necessary components
Hardware components
● S7 F-CPU, can be used for safety applications, e.g. CPU-317F-2PN/DP
● HMI device Mobile Panel 277F IWLAN
● Protective door
● Contact mat
● "Override" switch
● Signal lamp
Configuration software
● SIMATIC STEP 7 V5.4 as of SP2
● S7 Distributed Safety, V5.4 SP3
● WinCC flexible 2007 with HSP Mobile Panel 277 Wireless
Settings for the hardware components in STEP 7
in the following you can see the most important settings you have to make in the HW Config
for the F-CPU and the HMI device.
Loss of safety function
The settings shown in the following contribute to Cat. 4/ PL and/ SIL 3 being achieved. Any
changes to the settings may result in the loss of the safety function.
116
WARNING
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
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