Rockwell Automation 1747-BSN Backup Scanner Module - Manual (Page 151)

Publication 1747-UM010B-EN-P - September 2003
Programming Techniques 9-9
0005
B3:5
2
B3:6
2
COP
Copy File
Source
#N13:0
Dest #M0:1.3756
Length
128
COP
L
B3:7
2
0006
B3:6
2
U
B3:7
2
0007
B3:5
3
B3:6
3
COP
Copy File
Source #N13:128
Dest
#M0:1.3884
Length 128
COP
L
B3:7
3
0008
B3:6
3
U
B3:7
3
0009
B3:5
4
B3:6
4
COP
Copy File
Source
#N14:0
Dest #M0:1.4012
Length
128
COP
L
B3:7
4
0010
B3:6
4
U
B3:7
4
Virtual DTSW Bit
for Data Block #3
Virtual DTCW Bit for Data Block #3
Virtual DTHW Bit
for Data Block #3
Virtual DTHW Bit for Data Block #3
This rung monitors the DTCW and DTSW bits for Data Block #3. When a transfer of data using Data Block #3 is not in progress, copy up
to 128 words to the appropriate M-file location for Data Block #3 in the 1747-BSN module.
Unlatch the virtual DTCW bit for Data Block #3 when the comparable virtual DTSW bit is set by the 1747-BSN module to indicate that it has
received the last data via Data Block #3. When B3:7/2 has been unlatched, the module is ready for the next data transfer via Data Block #3.
Virtual DTCW Bit for Data Block #3
Virtual DTSW Bit
for Data Block #3
Virtual DTHW Bit
for Data Block #3
This rung monitors the DTCW and DTSW bits for Data Block #4. When a transfer of data using Data Block #4 is not in progress,
copy up to 128 words to the appropriate M-file location for Data Block #4 in the 1747-BSN module.
Virtual DTCW Bit for Data Block #4
Virtual DTSW Bit
for Data Block #5
Virtual DTHW Bit
for Data Block #5
This rung monitors the DTCW and DTSW bits for Data Block #5. When a transfer of data using Data Block #5 is not in
progress, copy up to 128 words to the appropriate M-file location for Data Block #5 in the 1747-BSN module.
Virtual DTCW Bit for Data Block #5
Virtual DTCW Bit for Data Block #4
Virtual DTHW Bit for Data Block #4
Unlatch the virtual DTCW bit for Data Block #4 when the comparable virtual DTSW bit is set by the 1747-BSN module, to indicate that it has
received the last data via Data Block #4. When B3:7/3 has been unlatched, the module is ready for the next data transfer via Data Block #4.
Virtual DTCW Bit for Data Block #5 Virtual DTHW Bit for Data Block #5
Unlatch the virtual DTCW bit for Data Block #5 when the comparable virtual DTSW bit is set by the 1747-BSN module to indicate that it has
received the last data via Data Block #5. When B3:7/4 has been unlatched, the module is ready for the next data transfer via Data Block #5.