Chapter 9—C445 Logic Engine and Expansion I/O
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
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The data for each I/O module is mapped in the order the
modules are positioned. For example, the first physical
module with digital outputs will have the data mapped to
the first available Digital Output register, 2263. An 8-output
or a 4-output card will be mapped to the low byte of register
2263. The next output card will have its data mapped to the
high byte of register 2263 and so on. The first physical
module with digital inputs will have the data mapped to the
first available Digital Input register, 2255. An 8-input or a
4-input card will be mapped to the low byte of register 2255.
The next input card will have its data mapped to the high
byte of register 2255 and so on. The data for input and output
cards with 4 points will be mapped to the 4 low bits in the
byte they’re mapped to, leaving the high 4 bits unused.
