Configuration
4.4 S7 Distributed Safety
Fail-safe operation of the Mobile Panel 277F IWLAN
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Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Wiring
You have to wire the inputs and outputs of the F FB manually. No automatic wiring is
performed.
Usage
WARNING
Emergency stop button not evaluated
The emergency stop button can only be evaluated if you call an F_FB_RNG_n in your
safety program.
Always call an F_FB_RNG_n in your safety program, even if you do not use effective
ranges in your plant.
The assigned effective range is managed by this F FB.
You need call one of the following F FB for every effective range when using the
Mobile Panel 277F IWLAN:
● F_FB_RNG_4 "Effective range for 4 Mobile Panels"
● F_FB_RNG_16 "Effective range for 16 Mobile Panels"
The FB you need to call depends on how many HMI devices are used in the effective range:
● If you configure a logon for up to 4 HMI devices in this effective range, use F_FB_RNG_4.
● If you configure a logon for up to 16 HMI devices in this effective range, use
F_FB_RNG_16.
How it works
The F FB performs the following depending on the state of the HMI devices assigned to the
effective range:
● Connect the outputs of F_FB_RNG_n
● Prepare the output user data
Each HMI device can take one of the following states in the effective range:
● Removed without communication error
The HMI device is successfully removed from the safety program of the F CPU. This
ends PROFIsafe communication. The HMI device has no influence on the outputs of
F_FB_RNG_n.
● Integrated without communication error
The actual operating state of the HMI device in the effective range
