Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 168

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Communication
6.5 Communication via PROFINET
Table 6-34
Telegram
Link values for setpoints master to
inverter
Link parameters for actual values
inverter to master
Note
r8850 also acts as a display parameter through which the setpoints received by the
PROFINET interface can be checked.
P8841 PROFINET functions
A number of advanced property settings for the PROFINET interface can be accomplished
using the indexed parameter P8841.
For most applications, however, the defaults values are adequate (value = 0). The following
table shows the property setting options.
Table 6-35
Parameter
P8841.01
P8841.03
Process data monitoring
The process data are monitored according to the following parameter:
● P8840 Fieldbus Off-time.
F0070 is activated if no new setpoints are received by the PROFINET interface within the
telegram failure period.
168
Parameters for flexible interconnection of process data
PROFINET functions
Meaning
BOP parameter in EEPROM:
Modifications to parameter settings
via SIMATIC HMI are stored
permanently in the EEPROM or as
volatile data in the RAM.
Select displayed diagnostics
screen.
If no telegram is received through the PROFINET interface, the fault F0070 will be
generated. If no telegram is received , Parameter P8840 defines the period of time till the
fault message is generated.
– P8840 = 0 means: No monitoring
– P8840 > 0 means: The period of time in milliseconds
CAUTION
Do not deactivate the process data monitoring function! If the monitoring function is
deactivated, the inverter will not recognize a PROFINET communication failure and
continue to operate with possibly wrong commands and setpoints.
PZD1
PZD2
PZD3
STW/ZS
HSW/HI
W
W
r8850.00
r8850.01
r8850.02 r8850.0
P8851.0
P8851.0
P8851.0
0
1
2
Value range
0: Permanent (EEPROM)
1: Volatile (RAM)
0: Standard diagnostics
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
PZD4
PZD5
PZD5
r8850.0
r8850.0
3
4
5
P8851.
P8851.
P8851.
03
04
05
Control Units CU240S

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