38
MOVIDRIVE
®
PROFIBUS DFP11A
4
The PROFIBUS-FMS
Interface
Fig. 37 shows the structure of the object “2 process input data words (2 PI)”.
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Fig. 37: Structure of the object “2 process input data words (2 PI)”
Table 11: Structure of the object “3 process input data words (3 PI)”
Fig. 38 shows the structure of the object “3 process input data words (3 PI)” .
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Fig. 38: Structure of the “3 process input data words (3 PI)” object
4.2.3 “Min Tsdr” Object
Where several PROFIBUS masters (higher level automation system) are present, it is often neces-
sary to modify the response delay time (min TSDR). This has to be done when the drive inverter
responds faster than the master can switch between send and receive. DIN 19245 defines default
values with which every PROFIBUS master or slave in a PROFIBUS network can safely be operated.
This minimum response delay time for PROFIBUS is set using the DIP switch on the option pcb
(see Fig. 8). This DIP switch is used to toggle between the min TSDR default value for straight DP
applications and the min TSDR default value for mixed FMS/DP applications. The default values for
the minimum response delay time defined in DIN 19245 will be chosen depending on the selected
baud rate.
Index:
8293
Object code:
7 (Simple variable)
Data type index:
10 (Octet string)
Length:
6 Byte
Local address:
-
Password:
-
Access groups:
-
Access rights:
Read all / Write all
Name[16]:
-
Extension length:
-
High
Low
Octet 0
Octet 1
High
Low
Octet 2
Octet 3
PI 1
PI 2
High
Low
Octet 0
Octet 1
High
Low
Octet 2
Octet 3
High
Low
Octet 4
Octet 5
PI 1
PI 2
PI 3