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System 300S
9.12
Commissioning and start-up behaviour
Start-up on delivery
Online with bus parame-
ters without project
IO device configuration
CPU state influences the
IO process data
HB140 | CPU | 315-4PN23 | en | 18-02
In the delivery state the CPU is overall reset. The PROFINET part is deactivated and its
LEDs are off after PowerON.
n
For the communication between IO controller and IO device the ways for the commu-
nication are to be defined before. For the clear specification of the communication
ways, these are established during the start-up by the IO controller, based on the
project data. Here the configuration takes place by a hardware configuration.
n
As soon as the project data were transmitted, the IO controller switches to system
start-up.
n
In this state the IO controller may be accessed and its CPU may be configured via
Ethernet by the IO controller by means of the IP address.
n
The PROFINET IO controller is configured by a hardware configuration. After the
transmission of the project into the IO controller with connected IO devices, the IO
controller has the whole information for the addressing of and the data exchange with
the IO devices.
n
During the system start-up of the IO controller the IO devices are supplied with their
configured IP address by means of the DCP protocol. After PowerON due to the
project data the system start-up of the IO controller is initialized and it runs off inde-
pendently. During the system start-up the IO controller establishes a clear communi-
cation relation (CR) and an application relation (AR) to an IO-Device. Here the cyclic
IO data, the acyclic R/W services and the expected modules/sub modules are speci-
fied.
n
The BF LED is on with configured PROFINET IO device and bus cable is missing.
If the IO controller has received valid project engineering data, a system start-up with
n
the IO devices is initialized and this is indicated by flashing BF LED.
n
If at least one IO device is not in cyclic data exchange during start-up, the BF LED
blinks.
n
If all IO devices are in cyclic data exchange, the BF LED gets off. This state does not
depend on the state of the operating mode switch of the CPU. After a successful
system start-up the system is ready for communication.
After PowerON respectively a receipt of a new hardware configuration the configuration
data are automatically transferred to the IO controller. Dependent on the CPU state the
following behaviour is shown by the IO controller:
n
Behaviour at CPU STOP
–
In the STOP state of the CPU an output telegram is further cyclically sent but this
is designated as "not valid" and the output data are set to 0.
–
The IO controller further receives the input data of the IO devices and transfers
them cyclically to the input area of the CPU.
n
Behaviour at CPU RUN
–
The IO controller cyclically reads the output data from the CPU and transfers
these as telegram to the connected IO devices.
–
The IO controller receives the input data of the IO devices and transfers them
cyclically to the input area of the CPU.
Deployment Ethernet communication - PROFINET
Commissioning and start-up behaviour
135
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