GE GFK-0787B user manual Configuring GMR Bus Controllers and I/O Blocks

6

Configuring GMR Bus Controllers and I/O Blocks

Each bus controller that serves the same input and/or output groups is configured similarly; so it is usually easiest to copy the first completed bus/bus controller in a group to configure the other bus controller(s) in the same group. Any additional changes can be made to the individual bus controller/bus configurations as needed (for example, to accommodate non-voted I/O on a bus, or the ªDº block of a 4-block output group.

GMR redundant input blocks in a group each have a unique ªrawº data address on each bus in the same PLC. However, the blocks have the same reference addresses in another GMR PLC.

GMR redundant outputs in a group have the same reference addresses on each bus in the group.

PLC A PLC B PLC B

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Bus A

Bus B

Bus C

	A		B		C		A		B
%I11265		%I11521		%I11777		%Q12033		%Q12033
Input blocks in a group are at								Output blocks in a group are
different ªrawº data addresses								at the same physical address

C

D

%Q12033%Q12033

GFK-0787B Chapter 6 Configuration 6-49