output is operated by a "Object 12" in DNP3. This object contains parameters for control-code, count, on-time and off-time. To operate an AUTOBITS output point, send a control-code of latch-On, latch-Off, pulse-On, pulse-Off, Trip or Close. The remainingparameters are regarded as appropriate. For example, pulse-On, on-time=100, off-time=300, count=5 would give 5 positive 100 ms pulses, 300 ms apart.For description of the DNP3 protocol implementation, refer to the Communicationmanual.12.9.3 Setting guidelinesAUTOBITS function block has one setting, (Operation: Enabled/Disabled) enabling ordisabling the function. These names will be seen in the DNP3 communicationmanagement tool in PCM600.12.10 Single command, 16 signals SINGLECMD12.10.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberSingle command, 16 signals SINGLECMD - -12.10.2 ApplicationSingle command, 16 signals (SINGLECMD) is a common function and always includedin the IED.The IEDs may be provided with a function to receive commands either from a substationautomation system or from the local HMI. That receiving function block has outputs thatcan be used, for example, to control high voltage apparatuses in switchyards. For localcontrol functions, the local HMI can also be used. Together with the configuration logiccircuits, the user can govern pulses or steady output signals for control purposes within theIED or via binary outputs.Figure 168 shows an application example of how the user can connect SINGLECMD viaconfiguration logic circuit to control a high-voltage apparatus. This type of commandcontrol is normally carried out by sending a pulse to the binary outputs of the IED. Figure168 shows a close operation. An open breaker operation is performed in a similar way butwithout the synchro-check condition.Section 12 1MRK 505 337-UUS -Control380Application manual
