Allen-Bradley SLC 500 Manual page 85

For the combination of a W, DW, W, the following example shows the layout.
WORD
IW0 IW0
ID1
IW1
IW2
IW3
IW3
IW4
Examples
Format
Iaa.b **
Qaa.b **
IBaa.b
QBaa.b
IWaa.bb
QWaa.bb
IDaa.bb
QDaa.bb
QUICKDESIGNER
QW0
QD1
QW3
Example Byte Addressing Description
I37.7 Input bit 7 of byte 37 (LSB of
word 18)
Q37.7 Output bit 7 of byte 37 (LSB of
word 18)
IB37 Input byte at byte 37 (LSB of
word 18)
QB37 Output byte at byte 37 (LSB of
word 18)
IW37 Input word starting at byte 37
(LSB of word 18)
QW37 Output word starting at byte 37
(LSB of word 18)
ID37 Input Dword starting at byte 37
(LSB of word 18)
QD37 Output Dword starting at byte
37 (LSB of word 18)
WORD
QW0
QW1
QW2
QW3
QW4
Word Addressing Description
Input bit 7 of word 37
Output bit 7 of word 37
n/a
n/a
Input word starting at word 37
(byte 74)
Output word starting at word 37
(byte 74)
Input Dword starting at word 37
(byte 74)
Output Dword starting at word
37 (byte 74)
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