Siemens SIMATIC HMI Operating Instructions Manual page 63

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Rules for effective ranges
The following rules apply when defining effective ranges:
Rule
The distance between the transponder and the
HMI device must not be longer than 8m.
The effective range must be sized in such a
way that it can be fully seen by the operator.
The distance between the machine to be
operated and the operator must be sized
depending on the machine.
Machine, transponder and operator position
must be aligned with each other.
Effective ranges should not overlap.
Consequently you should only assign each
transponder to a single effective range.
Transponders in different effective ranges
must be far enough away from each other that
their transmission ranges do not overlap.
You can set up a maximum of 127 effective
ranges in a project.
A maximum of 127 transponders can be
assigned to one effective range.
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
Machine that will be operated from within the effective range
Transponder with transmitting range in the form of a lobe
Planned effective range;
Assuming that the Mobile Panel is aligned with the effective range, fail-safe operation of the
machine is possible.
Actual effective range, safe operation is still possible from here.
3.6 Effective ranges and zones
Explanation
System limits
Too great or an unclear effective range prevents
visual control on the part of the operator.
Insufficient distance from the machine increases the
injury hazard for the user.
Too great a distance from the machine prevents
visual control on the part of the operator.
The HMI device must be able to measure the
distance to the transponder during operation. To do
this, you have to align the HMI device with the
transponder. The operator must be able to see the
the machine at the same time.
Assignment of effective range to the machine that
will be operated must be unique.
System limits
System limits
Planning application
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