Expanded Address S300 Bus CK721-A Installation and Operation
A-2 24-10349-8 Rev. B
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
New modules (RDR2S-A, I8O4, RDR8S, I32O16) allow greater flexibility in the mapping
of the logical terminal number (1-64) to a physical device (0-31) through the use of physical
addressing mode. The logical terminal number (1-64) is mapped to the physical address.
The RDR8S module allows up to 8
reader terminal index numbers to be mapped to a single
physical address.
The I32O16 module allows up to 32 inputs, 16 relay outputs, and 16 open collector outputs
to b
e mapped to a single physical address.
The RDR2S-A module allows up to
2 reader terminal index numbers to be mapped to a
single physical address. Numerous possibilities of logical to physical mappings exist.
The I8O4 module allows up to 8 inputs, 4 relay outputs, and 4 open collector outputs to be
ma
pped to a single physical address.
The following table contains several examples for mapping a logical termin
al number to a
physical device:
Device Type
Hardware Module
Nu
mber (Physical
Address),
Value Range 0-31
Reader Terminal
In
dex,
Value Range 1-8
Logical Terminal
Number,
Value Range 1-64
RDR2S-A 0 1 30
RDR2S-A 1 2 31
RDR2S-A 27 1 64
RDR8S 14 7 63
RDR8S 28 8 17
LEGACY N/A N/A N/A
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