46
MOVITRAC
®
31.. PROFIBUS Fieldbus Interface
4
The PROFIBUS-FMS
Interface
00955AEN
Fig. 55: Structure of the "Download Parameter Block" object
The "Download Parameter Block" object is only handled locally on the fieldbus option pcb and is
defined as shown in the following table.
With the WRITE service to the “Download Parameter Block” object, a parameter setting mecha-
nism is started in the fieldbus option pcb that successively transmits to the inverter all the parame-
ters in the user data area of the object.
After successfully processing the Download Parameter Block, i.e. all parameters transferred from
the FMS-master have been written, the Write service is ended with a positive Write Response.
In the event of an error, a negative Write Response is returned. In this event, the return code will
contain more precise details about the type of error and, in addition, the parameter number (1..38)
where the error occurred (see following example).
Index:
996
Object code:
7 (Simple variable)
Data type index:
10 (Octet string)
Length:
230
Local address:
-
Password:
-
Access groups:
-
Access rights:
Write all
Name[16]:
-
Extension length:
-
Octet 1:
Octet 2:
Octet 3:
Octet 4:
Octet 5:
Octet 6:
Octet 7:
Octet 8:
Octet 9:
Octet 10:
Octet 225:
Octet 226:
Octet 227:
Octet 228:
Octet 229:
Octet 230:
Byte
1-3 8 parameters
1st parameter
3 8th parameter
Reserved
Index high
Index low
Data MSB
Data
Data
Data LSB
Index high
Index low
Number of parameters
Index high
Index low
Data MSB
Data
Data
Data LSB
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