Relay is capable of processing simulated messages. The switchover to simulated messages requires that the relay is set to allow simulated messages and that it receives the first simulated message. Detection of simulated messages is separated per SMV publisher. Therefore, one SMV stream may receive as simulated while another stream is received as a non-simulated one.
To set the protection relay to allow simulated SMV, either LD0.LPHD1. Sim is set to true via the IEC 61850 protocol or the Allow simulation parameter is set via the WHMI or the LHMI to "Yes".
Switching back to receiving only non-simulated normal SMV stream requires that the Allow simulation parameter is set to "No" (or LD0.LPHD1.Sim = false). The values change to real ones after the first received normal SMV packet after simulation mode has been disabled.
The HMI can be used to verify that a simulated SMV stream is received. The publisher is marked with the “(simulated)” text when simulated stream is received. This can be observed in the Testing and Commissioning "Show SMV receiver" section.
The simulation mode behavior is described in more detail in IEC 61850-7-1 standard section.