Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 148)

148 Publication 1756-UM534B-EN-P - November 2010
Appendix B Adapter Mode I/O Map
Block Transfer Modules This section shows the structures that get mapped to ControlLogix produced/
consumed input or output data when you map a block transfer module.
Even if a module has only block transfer read or write data, you should map
the module to produced/consumed input and output data, so that the control
and status data gets mapped.
On monitored racks, block transfer read and write data maps to ControlLogix
inputs.
On active racks, block transfer read data maps to ControlLogix output data.
Block transfer write data maps to ControlLogix input data.
Block Transfer Read Data on Monitored or Active Racks
Block transfer read data on monitored racks are mapped to ControlLogix
inputs.
Block transfer read data on active racks are mapped from ControlLogix
outputs.
Block Transfer Reads on Monitored or Active Racks
Offset Description
0 Reserved, always 0
1 Reserved, always 0
2…n Up to 64 words of BTR data
0 1 2 3 4 5 6 7 8 9...
Reserved
Block Transfer Read Data Up To 64 Words
1st
16-bit
Word
44855