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Maximum Read/Write Ranges - Siemens SIMATIC RF615A Operating Instructions Manual

Universal uhf antenna
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Maximum read/write ranges

Please observe the installation notes (Page 9) and antenna alignment (Page 15) to achieve
the maximum read/write range.
The measurements were made under the following conditions:
● Maximum possible radiated power of the reader or antenna
● With a 3 meter long antenna cable with 1 dB cable loss (article number: 6GT2815-
0BH30)
● Room temperature of approx. 20 - 25 °C
● Optimized real measurement conditions (laboratory with few metallic reflecting surfaces)
Table 7- 1
SIMATIC RF630L
SIMATIC RF640L
SIMATIC RF690L
SIMATIC RF610T
SIMATIC RF620T
SIMATIC RF622T
SIMATIC RF625T
SIMATIC RF630T
SIMATIC RF640T
SIMATIC RF645T
SIMATIC RF680T
SIMATIC RF682T
Maximum write ranges
The antenna requires more power for writing than for reading data. When writing, the
maximum range reduces by approximately 30% compared with the read range.
SIMATIC RF615A
Operating Instructions, 09/2018, C79000-G8976-C511-01
Read ranges of the antenna (all ranges in meters [m])
SIMATIC
RF650R
0.95
0.35
0.7
0.6
1.5
0.4
0.35
0.3
0.6
1.2
0.6
0.7
SIMATIC RF615A with
SIMATIC
SIMATIC
RF680R
RF685R
1.35
1.35
0.35
0.35
0.7
0.7
0.85
0.85
2.2
2.2
0.4
0.4
0.5
0.5
0.4
0.4
0.9
0.9
1.5
1.5
0.9
0.9
0.9
0.9
7
25

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