Grounding Connection; Planning Application; Minimum Mounting Clearances Of Two Readers - Siemens SIMATIC RF600 System Manual

Readers
5.1 RF620R reader
Note
For long cables: Adapt supply voltage and data rate accordingly
Note that with long cables in particular, the supply voltage of 24 V DC must always be applied.
Note also that the data rate on the serial interface must, if necessary, be reduced. (See
"Configuration Manual RF620R/RF630R")
5.1.1.5

Grounding connection

The RF620R/RF630R can be electrically connected to the ground potential through a contact
washer. The tightening torque must be increased in this case to ensure that electrical contact
is made (2.7 Nm).
Ground connection
5.1.2

Planning application

5.1.2.1

Minimum mounting clearances of two readers

The RF620R has a circular polarized antenna. At 500 mW ERP radiated power, due to the
opening angle of the antennas, their fields can overlap considerably. It is no longer possible
to clarify in which antenna field access to the data of a tag is performed.
In order to avoid this, always keep a minimum distance of 3 m between two readers with the
maximum radiated power of 500 mW ERP.
Dense Reader Mode (DRM)
The readers can also interfere with each other (secondary fields), if the channels (Reader TX,
Transponder TX) overlap. In order to prevent a transponder channel overlapping with a reader
channel, we recommend that the Dense Reader Mode (DRM) is used.
84
(a)
(b)
(c)
(d)
System Manual, 06/2010, J31069-D0171-U001-A10-7618
Draft Version 02.06.2010
Hexagon-head screw
Plain washer
Cable lugs
Contact washer:
Use contact washers according to the
Siemens standard SN 70093-6-FSt-
flNnnc-480h for ground connection,
Siemens item No.: H70093-A60-Z3
SIMATIC RF600