MultiSmart Integrator Guide
Page 18 of 20 MultiSmart_Integrator_Guide_R01.doc
10 Media
MultiSmart supports a variety of communications media:
• Cellular data
o GPRS
o 3G
o Next G (Australia)
o 1XRTT (CDMA data)
• PSTN
• GSM voice
• RS232 locally
• RS232 for private and spread spectrum radio
• Ethernet radio
• Local Ethernet
• TCP/IP
• UDP/IP
11 Channels and ports
This is fully covered in section 22 of the I&O manual.
12 Comms redundancy
For redundancy, in a totally polled DNP environment, all that is needed are the 2 DNP slaves connected
over different physical media. Likewise, in a Modbus environment all that is needed are 2 Modbus slaves.
The master station will take care of trying to communicate over the different channels.
In unsolicited mode in DNP, the slaves themselves need configuration.
In the Advanced screen, Show more options needed to be checked.
-> Show more options and check the box, then exit the advanced screens, and
when you re-enter the Advanced screens more options will be available in many areas (see also section
30.1 of the I&O manual).
For the first slave, navigate to
• Set UnsolAllowed to true
• Set UnsolClassMask to the desired classes (typically All)
Navigate to
• Set UnsolPrimary to true
• Set the alias for UnsolPairActivate to DnpSlave.Slave._2.Comms.UnsolActivate
• Set the alias for UnsolPairDeactivate to DnpSlave.Slave._2.Comms.UnsolDeactivate
Lobley St SPS SP331 General (Electrical Manual (MPA) Multismart Manual Multitrode System Integrator Guide) General
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