Rockwell Automation 1771-DE Absolute Encoder Module User Manual - Manual (Page 64)

Appendix C
CĆ5
Use a file-to-file move to buffer the read data. Use B016:0001 (status)
and B016:0002 (position) for all data comparisons.
Rack: 002
The module is located in rack 2.
Group: 3
The module is located in I/O group 3.
Module: 0 = low
The module is in the low slot of the I/O group. (Two-slot modules are
addressed as being in slot 0.)
Data: FB015:0001/FB015:0011
This is the address of the first word of the read/write file.
Length: 0
Use the default value for the maximum number of words to read (two)
and write (20).
CNTL: FB010:0040/FB010:0040
This is the address of the block-transfer control file.