Siemens Simatic RTU303xC Series Operating Instructions Manual page 173

Control outputs
● Output voltage (X10 CTRL, X11, X40, X42)
From the drop-down list select the voltage (12 VDC or 24 VDC) at the voltage outputs of
the RTU.
Outputs X40 and X42 are supplied with the voltage configured here in the update cycle if
the associated analog inputs are configured with power supply "On". If an extension
board is used, the X10 CTRL output is supplied with this voltage.
With the next three check boxes enable the voltage of outputs X10 and X11.
● Supply X10 CTRL with voltage
If the option is enabled, X10 CTRL has the voltage configured above applied to it.
If an external power supply exists and is available, the X10 CTRL output is always
supplied by the external source.
● Supply X10 CTRL from battery if external voltage fails.
If the option is enabled, X10 CTRL is supplied from the battery modules if the external
power source fails. Note that this can involve a considerable shortening of the battery
lifetime.
If the option is disabled, no voltage is applied to X10 CTRL if the external power source
fails.
● Supply X11 CTRL with voltage in update mode
If the option is enabled, X11 CTRL is supplied with the voltage configured above in
update mode. Note that this involves increased power consumption.
If the RTU is not in update mode, the outputs have no voltage applied.
If the option is disabled, X11 CTRL never has a voltage applied.
● X11: Lead time before update cycle (ms)
Here enter a value (ms) for a period during which the output X11 has voltage applied to it
before the RTU changes to update mode. This value serves to damp down any voltage
fluctuations at the inputs of the RTU when turning on X11.
Notifications
● Using the drop-down list, select whether or not the RTU sends notifications as SMS
messages or e-mails.
Messages can be sent after the following events:
– Reaching a configurable operating time of the battery
– After changing over the battery module
● Change immediately to communication mode
If you select the option, the RTU changes immediately to communication mode as soon
as a named events occurs.
● Recipient group
Here you select the recipient group for the messages.
Configuration of the recipient groups in "Users / groups"
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06
Configuration (WBM)
4.18 Operating mode
173