Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 139)

Publication 1756-UM534B-EN-P - November 2010 139
Scanner Mode I/O Map Appendix A
Scanner Mode Block Transfer I/O
BT Read Structure - Input
0 1 2 3 4 5 6 7 8 9
BTR Returned Read Data
1st
16-bit
Word
BTW
Block Transfer Control Read Structure
BT Read
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Returned Read Data
Offset 2…n
Read Data Returned by the Block Transfer
BT Write 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Reserved
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BTR Error BTR Update Counter Block T
ransf
er
Read Err
o r
Read Done M
anual M
ode Only
BTW Update Counter BTW Error Block T
ransf
er
W
rite Err
or
W
rit
e Done
M
anual M
ode Only
Reserved
Block Transfer Control Write Structure
BT Read
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Write Data Container
for BTW Module
Offset 2…n
Write Data Container
BT Write
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Reserved
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BT Read Length
BT Write Length B
T W
rit
e
Enabled
M
anual M
ode Only
C
ontinuous M
ode
M
anual M
ode Only
Reserved Res
Res
B
T Read Enabled
M
anual M
ode Only
C
ontinuous Read /
B
T I
nhibit
I
O
I I I I I I I
O O O O O O O
0 1 2 3 4 5 6 7
Group Group Group Group
1/4
Partial Rack
1/4
Partial Rack
1/4
Partial Rack
1/4
Partial Rack
BT Write Structure - Output
0 1 2 3 4 5 6 7 8 9
BTR Write Data Container for BTW Module
1st
16-bit
Word
BTW
I/O Rack
Scanner Mode
Block Transfer I/O
44823