26
MOVITRAC
®
31.. PROFIBUS Fieldbus Interface
3
The PROFIBUS-DP
Interface
Bit 3 : Diag.Ext_Diag
This bit is set by the MOVITRAC
®
31.. frequency inverter as DP slave.
It indicates that a diagnostic entry has been made in the unit related diagnosis section (see
octet 8:
Unit Related Diagnosis).
Bit 2: Diag.Cfg_Fault
This bit is set by the MOVITRAC
®
31.. frequency inverter as DP slave. If the configuration data
last received by the master do not correspond to the configuration data supported by the
MOVITRAC
®
31.. frequency inverter.
Bit 1: Diag.Station_Not_Ready
This bit is set by the MOVITRAC
®
31.. frequency inverter as DP slave if the inverter is not
ready for data exchange yet.
Bit 0: Diag.Station_Non_Existent
The frequency inverter as DP slave sets this bit permanently at zero. This bit is set by the DP
master if the MOVITRAC
®
31.. frequency inverter cannot be accessed via the bus. If this bit is
set, the diagnostic bits in the master contain the status of the last diagnosis message of the
frequency inverter or the initial value resp.
3 .4.2
Data in Octet 2: Station Status 2
Fig. 31 shows the coding of octet Station Status 2 in accordance with EN 50170 V2 / DIN E 19245
Part 3. Station status 2 comprises information which is either generated by the master or by the DP
slave itself. The bits which are controlled by the master are generally set to zero by the DP slave. In
the following the individual status bits will be discussed in greater detail.
01183AEN
Fig. 31: Coding of the octet station status 2 according to EN 50170 V2 / DIN E 19245 Part 3
7
LSB
MSB
6
5
4
3
2
1
0
Diag.WD_On
Diag.Sync_Mode
Diag.Freeze_Mode
Diag.Deactivated *
Diag.Stat_Diag
Diag.Prm_Req
reserved
Octet 2: Station Status 2
Bit no.
This bit is fixed set to "1".
* = This bit is only set by the DP master. The MOVITRAC
®
inverter sets this bit permanently at zero.
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