In the operating mode PROFIBUS DP SyncIn the CPU cycle is
synchronized to the cycle of the VIPA PROFIBUS DP master system.
Here the CPU cycle depends on the VIPA DP master with the longest
cycle time. If the CPU gets into RUN it is synchronized with each
PROFIBUS DP master. As soon as the CPU cycle is passed, it waits
for the next synchronization impulse with input data of the DP master
system. If necessary the Scan Cycle Monitoring Time of the CPU
should be increased.
5.9.2.2 Token Watch
By presetting the PROFIBUS bus parameters within the hardware
configuration a token time for the PROFIBUS results. The token time
defines the duration until the token reaches the DP master again. Per
default this time is supervised. Due to this monitoring disturbances on
the bus can affect a reboot of the DP master. Here with the parameter
Token Watch the monitoring of the token time can be switched off
respectively on. Default: On
5.9.2.3 Number remanence flag
Here the number of flag bytes may be set. With 0 the value Retentive
memory > Number of memory bytes starting with MB0 set at the
parameters of the Siemens CPU is used. Otherwise the adjusted
value (1 ... 8192) is used. Default: 0
PROFIBUS-DP SyncIn
VIPA System 300S CPU
Deployment CPU 315-2AG13
Setting VIPA specific CPU parameters > VIPA specific parameters
HB140 | CPU | 315-2AG13 | GB | Rev. 14-40
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