Configuration
4.4 S7 Distributed Safety
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
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Parameter
Data type Description
Interconnection
DIAG
Word
Information about any occurring errors is
provided through this output for servicing
purposes.
Bit 0: HMI removed
Bit 1: HMI integrated
Bit 2: Communication error on the HMI device
Bit 3: Communication error must be
acknowledged.
Bits 4 to 15: Reserved
You can evaluate the
DIAG output in your
program.
Enable inputs EN and ENO
When you call a fail-safe block, the enable input EN and enable output ENO automatically
appear.
Note the following:
● Do not connect these I/Os
● Do not supply these I/Os with "0"
● Do not evaluate these I/Os
Validity
This description applies to version 1.0 of F_FB_MP.
Note
Insert the FC 176: F_BO_W and FC 177: F_W_BO blocks into your safety program because
they are called by F_FB_MP. You can find these blocks in the Distributed Safety F-Library in
the F-Application Blocks block container.
Wiring
You have to wire the inputs and outputs of the F-FB manually. They are not automatically
wired.
Purpose
The assigned Mobile Panel 277F IWLAN HMI device is monitored by F_FB_MP.
You need to use a separate F_FB_MP for each Mobile Panel 277F IWLAN.
F_FB_MP performs the following tasks:
● The block integrates the HMI device in the safety program of the F-CPU after startup.
● The block removes the HMI device from the safety program after a communication error.
As soon as the communication error has been corrected and the operator has
acknowledged this, the block integrates the HMI device back into the safety program.
