Replacing The Rtu - Siemens Simatic RTU303xC Series Operating Instructions Manual

Reaction after resetting to factory settings
After the reset, the RTU starts up again automatically. The remaining behavior depends on
the use of an optional SD card:
● Startup without SD card
– If you do not use an SD card, the RTU remains in service mode without configuration
– The RTU is reachable locally via the following default IP address set in the factory
– The DHCP server function is enabled.
– The DHCP client function is disabled.
– The RTU starts up without configuration data.
● Startup with SD card
If an SD card is plugged in, the RTU searches the SD card for the configuration file
"default.cfg" which was deleted during the reset.
A configuration file "user.cfg" saved on the SD card by the user is not used.
The RTU remains in service mode. The STATUS LED flashes red.
If you turn off the RTU after the reset, and then start it up with an SD card plugged in with
a configuration file "default.cfg", the RTU uses the configuration file "default.cfg". See also
section Commissioning and starting up the RTU (Page 84).
6.5

Replacing the RTU

Replacing the RTU
Read the safety notices
Before changing the RTU, read the safety notices in the section Important notes on using
the device (Page 61).
While working on the device make sure that the power supply is turned off.
When replacing the RTU follow the steps described in the section Connecting up,
installation, commissioning (Page 61).
When replacing the RTU, remember to take the SIM card from the old device and insert it in
the new one.
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06
data. The STATUS LED flashes red.
192.168.0.3 or the DNS name "simatic.rtu".
Generally, the defaults apply during the first commissioning, refer to the section
Establishing a connection to the WBM of the RTU (Page 101).
WARNING
Diagnostics and maintenance
6.5 Replacing the RTU
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