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Application and functions
1.4 Process connection - inputs / outputs
The times of the changeover to the communication mode can be configured as a cycle and
on the occurrence of events. After transferring data, the RTU returns to the sleep mode. As
long as there is no update cycle running.
Connection establishment as a result of receiving a wake-up SMS message from the
telecontrol server or from a mobile phone can be configured. Remember that this increases
the current consumption of the RTU. For more detailed information, refer to the section
Wake-up call / wake-up SMS (Page 192).
Service mode
The service mode is enabled by briefly pressing the (< 1 s) of the "WKUP" button.
The changeover to the Service mode as the following effect:
● Turning on the LEDs that were turned off in the other operating modes to reduce energy
consumption.
● Activation of the LAN interface
With the LAN interface of the RTU activated, a configuration PC can access the Web
pages (WBM) of the RTU.
The Service mode is intended for commissioning and for service purposes on site, for
example, to replace the battery.
The service mode can be active parallel with the update mode and communication mode.
The service mode can also be activated permanently. Remember that this increases the
energy consumption of the RTU significantly.
1.4
Process connection - inputs / outputs
Inputs, outputs
The RTU provides the following inputs and outputs for the process connection:
● 8 digital inputs
The first two digital inputs can also be configured as fast counter inputs up to 5 kHz.
● 4 digital outputs
● 4 analog inputs
The input AI0 can also be monitored in sleep mode.
You will find details in the section Interfaces and connectors (Page 43).
22
Operating Instructions, 09/2017, C79000-G8976-C382-04
RTU3030C
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