MultiSmart Integrator Guide
Page 19 of 20 MultiSmart_Integrator_Guide_R01.doc
For the second slave, navigate to
• Set UnsolAllowed to true
• Set UnsolClassMask to the desired classes (typically All)
Navigate to
• Under the Comms node, set UnsolPrimary to false
• Set the alias for UnsolPairActivate to DnpSlave.Slave._1.Comms.UnsolActivate
• Set the alias for UnsolPairDeactivate to DnpSlave.Slave._1.Comms.UnsolDeactivate
When the device is started, the first slave will have unsolicited responses enabled, and the second will
have them disabled. If the first slave attempts to send an unsolicited response, but receives no
confirmation from its master, then it will eventually go into comms fail state after the period of time defined
by CommsFailTime. When this occurs, it will disable unsolicited responses and will activate unsolicited
responses for the other slave.
When the second slave has unsolicited responses enabled, if it goes into comms fail state, then it will
disable unsolicited responses and activate unsolicited responses for the primary slave again.
When the primary slave has unsolicited responses disabled, if it goes back online (i.e., its master sends
through a successful poll), then it will automatically re-enable unsolicited responses, and will deactivate
unsolicited responses for the secondary slave.
13 Comms troubleshooting
13.1 Basic
Basic level troubleshooting of DNP3 or Modbus communications can be done via the LCD interface:
or
If a master has been configured, the master statistics can be seen via:
or
Lobley St SPS SP331 General (Electrical Manual (MPA) Multismart Manual Multitrode System Integrator Guide) General
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