Manual – DFE32B Fieldbus Interface PROFINET IO
57
6
MOVIDRIVE® MDX61B – control
Operating Behavior in Conjunction with PROFINET
6.4.1 SIMATIC S7 with MOVIDRIVE
®
MDX61B – control example
The drive inverter is controlled via SIMATIC S7 depending on the selected process data
configuration, either directly via load and transfer commands or via the special system
functions SFC 14 DPRD_DAT and SFC15 DPWR_DAT.
In principle, S7 data lengths of 3 bytes or more than 4 bytes must be transmitted using
system functions SFC14 and SFC15.
Consequently, the data in the following table applies:
6.4.2 PROFINET timeout (MOVIDRIVE
®
MDX61B)
If the data transfer via PROFINET is faulty or interrupted, the response monitoring time
in MOVIDRIVE
®
elapses (if configured in the IO control). The BUS FAULT LED lights
up or flashes to indicate that no new user data is being received. At the same time,
MOVIDRIVE
®
performs the error response selected with P831 Fieldbus timeout re-
sponse.
P819 Fieldbus timeout displays the response monitoring time specified by the IO con-
troller during the PROFINET startup. The timeout can only be changed via the IO con-
troller. Although modifications made via the keypad or MOVITOOLS
®
MotionStudio are
displayed, they do not have any effect and are overwritten when the PROFINET is next
started up.
6.4.3 Fieldbus timeout response (MOVIDRIVE
®
MDX61B)
Parameter P831 Response Fieldbus Timeout is used to set the error response that is
triggered via the fieldbus timeout monitoring function. The setting made here must cor-
respond to the setting in the master system (S7: response monitoring).
Process data configuration STEP 7 access via
1 PD Load/transfer commands
2 PD Load/transfer commands
3 PD System functions SFC14/15 (length: 6 bytes)
6 PD System functions SFC14/15 (length: 12 bytes)
10 PD System functions SFC14/15 (length: 20 bytes)
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