Application Planning
3.4 Planning effective ranges
Fail-safe operation of the Mobile Panel 277F IWLAN
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Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Example:
①
Machine that will be operated from within the effective range
②
Transponder with transmitting range in the form of a lobe
③
Planned effective range; safe operation of the machine is possible from here
④
Actual effective range; safe operation of the machine is still possible from here
Procedure
1.
On the system plan specify which parts of the system will be operated with the enabling
buttons. You require effective ranges for these areas of the system.
2.
Specify the spatial expansion of the individual effective ranges. The operator must be
located within the limits of the respective effective range in order to operate the
corresponding plant unit with the enabling buttons.
Comply with the rules for the definition of effective ranges.
3.
Plan the transponders in the effective range in such a manner that the effective range is
covered by the radiated emission of the transponders. Ensure that the effective range is
not too large to be seen or another danger arises.
4.
Specify the following:
– A name and an ID unique throughout the plant for each effective range from the value
range 1 to 127
– A name and an ID unique throughout the plant for each transponder from the value
range 1 to 65534
– For each effective range the maximum distance that the HMI device can have to the
transponders of this effective range. The distance must be the same for all
transponders of an effective range.
– The mounting location for an indicator.
WARNING
An indicator in the effective range is an absolute necessity
A indicator supplies the operator the feedback that he has logged onto the correct
effective range.
Install an indicator in every situation, for example a light that shows that an HMI
device is logged on in the effective range.
5.
On the system plan, note the names and the IDs that you use during commissioning.
Prior to commissioning you must affix the IDs of the effective ranges in the plant so that
they are easily legible.