Lenze PROFIBUS E84AYCPM - Page 88

Lenze · E84AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 5.0 EN · 11/2012 · TD17 88
11 Diagnostics
11.2 Diagnosing with the »Engineer«
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Querying the current bus status
Code C13861
displays the current PROFIBUS status in a bit-coded form:
Bit assignment Description
Bit 3 Bit 2 Bit 1 Bit 0 Reserved
Bit 5 Bit 4 Status of the DP state machine (DP-STATE)
0 0 WAIT_PRM The slave waits for a parameter data telegram after
acceleration. Other types of telegrams will not be processed.
Data exchange is not yet possible.
0 1 WAIT_CFG The slave waits for the configuration telegram that specifies
the number of input and output bytes. The master informs
the slave about the number of I/O bytes that will be
transferred.
1 0 DATA_EXCH If the parameter settings as well as the configuration have
been accepted by the firmware and by the application, the
slave state changes to DATA_EXCH ("Data Exchange",
exchange of user data with the master).
1 1 Not possible
Bit 7 Bit 6 Status of the watchdog state machine (WD-STATE)
0 0 BAUD_SEARCH The PROFIBUS slave is able to automatically detect the baud
rate.
0 1 BAUD_CONTROL After recognising the correct baud rate, the slave status
changes to BAUD_CONTROL and the baud rate is monitored.
1 0 DP_CONTROL The DP_CONTROL status serves for response monitoring of
the master.
1 1 Not possible
Bit 11 Bit 10 Bit 9 Bit 8 PROFIBUS baud rate detected
000012 Mbps
00016 Mbps
00103 Mbps
00111.5 Mbps
0 1 0 0 500 kbps
0 1 0 1 187.5 kbps
011093.75 kbps
011145.45 kbps
100019.2 kbps
10019.6 kbps
Bit 15 Bit 14 Bit 13 Bit 12 Reserved