Types Of Antenna; Antenna Cables - Siemens SIMATIC RF600 Series System Manual

Environmental conditions
NOTICE
Damage to the device
In line with the application, you must take into consideration the mechanical loads (shock
and vibration) as well as environmental demands such as temperature, moisture, UV
radiation.
The device could be damaged if these factors are not considered.
Specifying the transmit / radiated power
Depending on whether you want to use a third-party antenna and/or antenna cable with a
reader, you need to select the suitable components. When selecting third-party components
orient yourself on the values of comparable Siemens products.
With the readers, the parameters for the transmit/radiated power, antenna gain and cable
loss (user-defined) are set using the WBM. In the WBM, you can select the Siemens
products being used from a drop-down list quickly and easily, and the values and their effect
on the transmit/radiated power are calculated directly. With third-party products, you can
enter the relevant values manually.
Based on the entered products/values, the WBM calculates the permitted radiated power
and makes sure that this is not exceeded.
4.3.9.4

Types of antenna

In principle, all types of directional antennas can be considered as antennas for integration
into the SIMATIC RF600 system. Directional antennas have a preferred direction in which
more energy is radiated than in other directions.
RF600 antennas on the other hand, are optimized for operation with RF600 readers and
have all the required approvals.
4.3.9.5

Antenna cables

Selection criteria
You must observe the criteria listed below when selecting the appropriate antenna cable.
Characteristic impedance
Note the following points when selecting the antenna cable:
● You can only use coaxial antenna cables when connecting an antenna.
● These antenna cables must have a nominal characteristic impedance of Z = 50 Ohm.
SIMATIC RF600
System Manual, 11/2018, J31069-D0171-U001-A21-7618
RF600 system planning
4.3 Antenna configurations
53