3G modem for RTU32 Series Plug & Play

UCM-94 3G/GPRS Modem

UCM-94/1 is an industrial 3G, UMTS, GPRS Modem designed for use with the Brodersen RTU32 Series.

 

The UCM-94 support quad band GSM/GPRS/EDGE and

triple band UMTS/HDSPA modem enables Brodersen RTUs to communicate wireless telemetry data and SMS over public and private APN.

 

 

3G/GPRS/UMTS/HDSPA connection management and maintenance is controlled by the RTU logic and provide an open wireless network connection for any network based communication protocol like Modbus TCP, IEC60870 or DNP3.

 

Main communication and power interface is USB 2.0 and the UCM-94 has a covered built-in SIM card slot. External antenna is connected via the SMA antenna connector to provide good field strength to ensure reliable communication links. In addition the UCM-94 has a watchdog interface for hard resetting the modem.

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Overview - RTU protocols and driver setup
Your RTU application may simply be an 'end point' and only need to interface with a SCADA host or other master device - or it may need to 'sing and dance'...
1- Select what you need
The RTU Configuration Tool allows selection of protocols and hardware.
2 - Create a project in WorkSuite
Then define IO points, create some logic and additional variables eg. this waste water pump station controller accumulates pump statistics and computes derived flow totals from change in wet well volume.
3 - Setup DNP3 slave for this example
Use the Fieldbus Configurator to add the DNP3 slave protocol, create a channel (how to communicate), create a 'session' (who to communicate with), then set application layer parameters (messaging rules).
4 - 'Variables of interest'
Variables (data points in the RTU database) can be 'exposed' to one or more protocols, by referencing them in either the fieldbus editor (simple protocols like Modbus), or including them in a 'profile' (advanced protocols like IEC61850 and DNP3). For DNP3 slave, the variables of interest are dragged in to the DNP3S profile, where they can be associated to object types, given a point address, event class, reporting limits etc.
5 - Prove it works
Connect the RTU to the SCADA host and prove the data values are transferred correctly. If you need to troubleshoot the message contents - use the RTU web interface utility to capture network data packets for viewing in Wireshark to quickly resolve issues.
6 - Make it smarter!
The WorkSuite logic tools allow you to interact with the RTU communications tasks, to enhance the monitoring and control of your data transfer processes. This example DNP3 slave RTU is monitoring the unread events buffers and is able to manipulate point object properties (event class, reporting thresholds etc) and network interface properties (IP address of the host and peer slaves that it may be communicating with).
Conclusion - enjoy having a 'future proof' RTU...
Your RTU requirements will evolve over time, so when you need more I/O, comm ports, protocols or RTU functionality - know it can be easily implemented in a Brodersen RTU.