Siemens SIMATIC NET CP 343-1 Manual do Utilizador descarregar pdf (Página 23)

3 Installation and Commissioning

B−23

CP 343-1 Advancedfor Industrial Ethernet / Manual Part B

Release 06/2008

C79000-G8976-C202-04

3.4 Controlling the operating mode

You have the option of changing the mode of the CP between RUN and STOP

using the STEP 7 / NCM S7 configuration software (PLC > Accessible Nodes).

Procedure

S Switch from STOP to RUN:

The CP reads the configured and/or downloaded data into the work memory

and then changes to the RUN mode.

S Switch from RUN to STOP:

The CP changes to STOP. Established connections (ISO transport,

ISO-on-TCP, TCP, UDP connections) are terminated (transitional phase with

LED display “STOPPING”);

The reaction is as follows in STOP:

− The communications connections mentioned above are terminated;

− The configuration and diagnostics of the CP is possible (system connections

for configuration, diagnostics, and PG channel routing are retained);

− HTTP access is possible

− The routing function is active

− The time of day is not forwarded

− PROFINET IO is disabled.

− PROFINET CBA is disabled.

Module access protection

The configurable module access protection has the following effects on the

functions described here:

S Module access protection is locked

The functions can be executed.

S Module access protection: Status dependent

With this setting, it is only possible to access the CP when the CPU is in STOP

mode.

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