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Option: PROFIBUS communication
Commissioning and Start-up behavior
Online with bus parameter
without slave project
Slave configuration
CPU state controls DP
master
Master behavior at CPU
STOP
Master behavior at CPU
RUN
194
The DP master can be served with bus parameters by means of a hardware configura-
tion. As soon as these are transferred the DP master goes online with his bus parameter.
This is shown by the RUN LED. Now the DP master can be contacted via PROFIBUS by
means of his PROFIBUS address. In this state the CPU can be accessed via PROFIBUS
to get configuration and DP slave project.
If the master has received valid configuration data, he switches to Data Exchange with
the DP Slaves. This is indicated by the DE-LED.
After PowerON respectively a receipt of a new hardware configuration the configuration
data and bus parameter were transferred to the DP master. Dependent on the CPU state
the following behavior is shown by the DP master:
n
The global control command "Clear" is sent by the master. Then the DP slaves dis-
able the outputs.
n
DP slaves with fail safe mode were provided with output telegram length "0".
n
DP slaves without fail safe mode were provided with the whole output telegram but
with output data = 0.
n
The input data of the DP slaves were further cyclically transferred to the input area of
the CPU.
The global control command "Operate" is sent by the master. Then the DP slaves
n
enable the outputs.
n
Every connected DP slave is cyclically attended with an output telegram containing
recent output data.
n
The input data of the DP slaves were cyclically transferred to the input area of the
CPU.
VIPA System SLIO
HB300 | CPU | 013-CCF0R00 | en | 16-40
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