Allen-Bradley SLC 500 Manual page 248

For the combination of a W, DW, W, the following example shows the layout.
BYTE
IW0 IB0
IB1
IB2
ID2
IB3
IB4
IB5
IB6
IW6
IB7
Example 4, Word Addressing: Input Words = 64, Output Words = 64, Input start address = 0,
Output start address = 0.
Name
I (Input Bit)
Q (Output Bit)
IW (Input Word)
QW (Output Word)
ID (2 Word Input)
QD (2 Word Output)
DWORD WORD
ID0 IW0
IW1
ID1
IW2
ID2
IW3
IW4
IW5
IW62
ID62
IW63
For the combination of a W, DW, W, the following example shows the layout.
WORD
IW0 IW0
ID1
IW1
IW2
IW3
IW3
IW4
142 • • • • Interbus-S
QW0
QD2
QW6
Address range Value range
I0.0 to I63.15 0 to 1
Q0.0 to Q63.15 0 to 1
IW0 to IW63 -32768 to 32767
QW0 to QW63 -32768 to 32767
ID0 to ID62 -999999999 to
999999999 Y
QD0 to QD62 -999999999 to
999999999 N
DWORD
QD0
QD1
QD2
QD62
QW0
QD1
QW3
BYTE
QB0
QB1
QB2
QB3
QB4
QB5
QB6
QB7
Write Type
Y Bit
N Bit
Y Word
N Word
DWord
Dword
WORD
QW0
QW1
QW2
QW3
QW4
QW5
QW62
QW63
WORD
QW0
QW1
QW2
QW3
QW4
QUICKDESIGNER