3 8
MOVITRAC
®
31.. PROFIBUS Fieldbus Interface
4
The PROFIBUS-FMS
Interface
4.1.2
Abort
An existing communications link between the FMS master and the MOVITRAC
®
31.. inverter is
cleared using the FMS service
Abort. Abort is an unacknowledged FMS service and can be initiated
both by the FMS master as well as by the MOVITRAC
®
31...
The attempt to establish an already existing communications link again generally leads to
Abort.
The communications link will then no longer exist so the FMS service
Initiate will have to be per-
formed a third time to reinstate the communications link.
4.1.3
Reject
With the FMS service
Reject, the MOVITRAC
®
31.. inverter rejects an illegal FMS service. The
inverter indicates to the FMS master that this is an illegal or invalid service.
4.1.4
Identify
With the FMS service
Identify, the MOVITRAC
®
31.. inverter passes the following data to the FMS
master for definite identification:
vendor_name:
SEW-Eurodrive GmbH & Co
model_name:
MOVITRAC
revision:
821XXXYYZZ
(Number of inverter system software)
4.1.5
Get-OV
With the FMS service
Get-OV, the FMS master can retrieve the object description of the
MOVITRAC
®
31.. inverter. In general all drive parameters are described as communications
objects. More precise information about object descriptions can be found in Section 4.2.
The MOVITRAC
®
31.. inverter supports both the short as well as the long form of the FMS service
Get-OV.
4.1.6
Status
With the FMS service
Status, the FMS master can check the logical communications status of the
FFP 31C option of the MOVITRAC
®
31.. inverter. The
Local Detail attribute is not supported by the
inverter.
4.1.7
Read
With the FMS service
Read, the FMS master can read all the communications objects (drive param-
eters) of the MOVITRAC
®
31.. inverter. All drive parameters as well as their codings are listed in
detail in the documentation MOVITRAC
®
31..
Parameter List.
4.1.8
Write
With the FMS service
Write, the FMS master can write all the drive parameters of the MOVITRAC
®
31... If a drive parameter is assigned an invalid value (e.g. value too high), the inverter generates a
Write Error Response giving the precise cause of the error (see Section Return Codes).
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