Global Communications

Data may be read from or written to the following memory types using Global data communications:

Memory Type	Description
%I	Read discrete inputs from Genius BIU
%AI	Read analog inputs from Genius BIU *
%Q	Write discrete outputs to the Genius BIU Discrete Output table
%AQ	Write analog outputs to the Genius BIU Discrete Output table *
%GL	Read Global Data from Analog and Digital blocks Read Global Data from programmable controllers Write Outputs to Digital Blocks Read Global Data from other Genius devices (such as PCIM cards)
%EO	Enable Outputs to Blocks Enable Outputs to Genius BIU
%DO	Directed Outputs to Analog Blocks

* Analog points configured in Discrete memory on a BIU must be configured to start on even-byte boundaries.