Balluff BIS M-4A3-082-401-07-S4 Anleitung Seite 81

BIS M-4A_-082-401-07-...
Industrial RFID-System BIS M
4
Primary Device Functions (continued)
4.5 RFID Information
4.5.1 Description
The RFID information provides an additional information
about the state of the RFID system.
4.5.2 ISDU
Name Index
RFID 0x007F (127)
information
RSSI
Tab. 4-5: RFID Information – ISDU
RSSI
The RSSI (Radio Signal Strength Indicator) is a unitless,
relative value between 0 and 100. A higher value signals a
better signal strength of the response from the data carrier
and is influenced by the positioning from the data carrier to
the read/write head and by soiling that affects the RF field
(e.g. metal filings).
The value can be used during commissioning to optimize
the alignment of the read/write head to the data carrier.
Monitoring this value against the same value at the time of
commissioning can allow early detection of degradation.
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Sub index Access
0 R
1 R
Length Data Type
1 Byte Record
1 Byte UINT8
Data Default
Storage
n.a.
n.a. –
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