User manual

Smart_DP RM 9600 User Manual
Seite 18
F.3.3 Diagnose data for a ‘Radio Master’
The Smart_DP module provides the Profibus master the possibility to obtain diagnose informa-
tion about errors from the Profibus slave device (Radio Master). Because of that, the
Smart_DP module is coding the diagnose information in 7 Profibus user-specific diagnose
bytes.
Byte (user specific) Bit Description
1 to 4 Internally (DPV1) used
0 RS-232 TX-Buffer Overflow
1 RS-232 RX-Buffer Overflow
2 Inputlength-Error
3 Outputlength-Error
4 Baudrate-Error
5 Parity-Error
6 Stopbit-Error
5
7 Bytesize-Error
6 0 LRC Error
1-6 Not used
7 RADIO_TX_FULL
7 0 NO_LINK_1
1 NO_LINK_2
2 NO_LINK_3
3 NO_LINK_4
4 NO_LINK_5
5 NO_LINK_6
6 NO_LINK_7
7 NO_LINK_8
The first 4 bytes of the user-specific diagnose data and the bit 1 to 6 in the 6
th
byte respectively
are not relevant for information.
For radio modem operation, the following diagnose information is important:
LRC Error: This error bit signals to the profibus master, that the actual checked LRC Byte
from the corresponding partner was wrong.
RADIO_TX_FULL: This parameter informs the profibus master that the radio modems TX
buffer is full.
NO_LINK_X: This error bits signals to the profibus master, that no actual data is transmitted
from the corresponding partner which is selected since a configured time.
The remaining diagnose bits mentioned above are not relevant in that case.