Equi-Cycle

If the PROFIBUS-MC slave devices are added to the master device first, they are always addressed before the DP slave devices in the DP cycle. The part of the DP cycle in which the MC slave devices are addressed first is referred to as the Equi-Cycle. If the Equi-Cycle exceeds the To time of the MC slave devices, the last MC slave devices attached to the master device usually receive a synchronization error.