Siemens Simatic ET 200pro FC, Operating Instructions Manual

Page: 103 / 196

Commissioning and optimization (software)
7.4 Commissioning of communication between the S7 CPU and the frequency converter
ET 200pro FC
Operating Instructions, 07/2016, A5E01100763B AC
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Table 7- 7 Parameters for flexibly interconnecting process data in the PROFIdrive profile
Telegram PZD1
STW/ZSW PZD2
HSW/HIW
Connection values for setpoints, master to converter r2050.00 r2050.01
Connection parameters for actual values, converter to master P2051.00 P2051.01
Note
r2050 also acts as a display parameter, by means of which the setpoint received from the
fieldbus can be checked.
NOTICE
The watchdog function must not be disabled. If this monitoring function is disabled and a
fault occurs at the fieldbus interface, the converter cannot detect a fault condition and,
therefore, continues to run even in the event of a fault.
Process data monitoring
The telegram failure time is monitored in the converter using parameter P2040.
P2040 telegram failure time
Parameter P2040 specifies the time after which a fault code (F0070) is generated if no
telegram is received via the fieldbus.
● P2040 = 0 means: No monitoring
● P2040 > 0 means: The time in milliseconds after which a fault condition is generated if no
setpoint telegram has been received.
NOTICE
Faults can only trigger a shutdown if both monitoring functions are active.
If communication is taking place via the fieldbus, parameter P2040 should also be set to a
value > 0. This enables/disables the process data monitoring function if the watchdog
function is used on its own. The monitoring time corresponds to the watchdog time setting
value, plus the time set in P2040.
Note
Process data for which the complete control word (PZD1) is set to zero are not transferred to
the converter via the fieldbus. Result: Fault F00070 may occur.