Effective Ranges And Zones; Mobile Panel 277F Iwlan; Division Of The System Into Effective Ranges And Zones - Siemens SIMATIC HMI Operating Instructions Manual

Planning application

3.6 Effective ranges and zones

Ad hoc mode
Ad hoc mode cannot be used in conjunction with the Mobile Panel 277F IWLAN.
See also
Description of interfaces on the HMI device (Page 313)
3.6 Effective ranges and zones
3.6.1

Division of the system into effective ranges and zones

Effective ranges
Safety-related operator inputs are only possible in a limited area upstream of a machine or
system. This is known as the effective range. The effective range assumes that the operator
has a clear view the machine without any obstructions. To perform safety-related operator
inputs, the operator must log the HMI device onto the effective range.
Note
You can also operate the HMI device without any effective ranges being defined in the
system.
Note
Zones and effective ranges are completely independent of each other.
Rules for effective ranges
A maximum for 127 effective ranges can be defined for each project. An effective range
requires at least one transponder. An effective range can be formed by a maximum of 127
transponders. Effective ranges must not overlap.
An effective range is defined by the maximum distance of the HMI device from one or more
transponders. The same maximum distance applies to all transponders in an effective range.
The assignment of transponders to effective ranges is predefined in the project.
Example
The following figure shows an example with three effective ranges.
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Mobile Panel 277F IWLAN

Operating Instructions, 12/2007, A5E01003940-01