Planning the use
3.5 Planning protection zones in the RFID tag system
Wireless Teach Pendant F IWLAN V2
Operating Instructions, 08/2010, A5E02453837-01
53
Relationship between protection zone and RFID tag
The protection zone limit is defined by a clear spatial demarcation.
If the HMI device is logged onto a machine in the protected area with a RFID tag, it is
possible to operate the machine in fail-safe mode with an enabling button within the
protected area.
Requirements for the protection zone
The protection zone must meet the following requirements:
● The protection zone must be completely demarcated and protected.
● Protection zones may not overlap.
● The protection zone must be fully visible to the operating personnel.
● A hazardous location must be visible from every point of the protection zone.
You can find a configuration example in the Appendix.
● The protection zone must be protected by a security system that prevents unauthorized
or erroneous use of the HMI device. The security system must have a safety category
that is sufficient to meet the plant requirements.
The following security systems are suitable:
● Mesh fence with access
If you use a mesh fence for the protection zone, you can protect access through an
additional security system, for example, a light barrier or a contact pressure mat. This
allows open access for an escape route during operation of the plant.
● Light barrier
● Contact pressure mat
The security system can be controlled by a safety program, such as a program for robot
control conforming to a robotics directive.
See also
Example of an application (Page 267)
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