
Chapter 7 Deployment Profibus communication
Manual VIPA System 300S SPEED7
7-10
HB140E - CPU SC - RE_313-6CF03 - Rev. 07/45
Commissioning and Start-up behavior
In delivery the CPU is overall reset. The Profibus part is deactivated and its
LEDs are off after Power ON.
The DP master can be served with bus parameters by means of a
hardware configuration. 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 Power ON respectively a receipt of a new hardware configuration the
configuration data and bus parameter were transferred to the DP master.
The DP master does not have any operation switch. His state is controlled
by the RUN/STOP state of the CPU.
Dependent on the CPU state the following behavior is shown by the DP
master:
•
The global control command "Operate" is sent to the slaves by the
master. Here the DE-LED is ON.
•
Every connected DP slave is cyclically attended with an output telegram
containing recent output data.
•
The input data of the DP slaves were cyclically transferred to the input
area of the CPU.
•
The global control command "Clear" is sent to the slaves by the master.
Here the DE-LED is blinking.
•
DP slaves with f
ail safe mode
were provided with output telegram length
"0".
•
DP slaves without
fail safe mode
were provided with the whole output
telegram but with output data = 0.
•
The input data of the DP slaves were further cyclically transferred to the
input area of the CPU.
Start-up on
delivery
Online with bus
parameter without
slave project
Slave
configuration
CPU state controls
DP master
Master behavior at
CPU RUN
Master behavior at
CPU STOP
Summary of Contents for 313-6CF03
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