User Manual User guide
Publication 1756-UM534B-EN-P - November 2010 151
Adapter Mode I/O Map Appendix B
Block Transfer Write Structure
Block Transfer Write Structure on Monitored or Active Racks
Offset Bit Description
0 0…7 BTR update counter (increments each time BTR executes, 0…255)
8…10 BTR error code
11 BTR.ERR, block transfer read error
12…15 Reserved
1 0…7 BTW update counter (increments each time BTW executes, 0…255)
8…10 BTW error code
11 BTW.ERR, block transfer write error
12…15 Reserved
2…n 0…15 BTW data (64 integers, max)
Oset Word 0
BT Read
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Oset Words 2-n
BTW Data
BTW Data (64 integers, max)
Oset Word 1
BT Write
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BTR Error
BTR Update Counter
Block Transfer
Read Error
BTW Update Counter
BTW Error
Block Transfer
Write Error
Reserved
Reserved
44844
Block transfer writes on active and monitored racks are
mapped to ControlLogix inputs.