Schneider Electric 840 USE 106 0 manual Nontransfer Area Within the State RAM Transfer

Using a Quantum 984 HSBY System

Nontransfer Area

Within the State

RAM Transfer

Area

Only 4x reference data can be placed in the nontransfer area. These designated registers are not transferred to the Standby controller, thus reducing scan time. The following block diagram shows how the nontransfer area exists with respect to the rest of the state RAM transfer area.

State RAM Transfer Area

Total number of register outputs transferred

Critical outputs transferred on every scan

Note: The command register must be outside the nontransfer block

Additional outputs transferred in chunks on multiple scans

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