11–11
Communicating with a PLC-5 Processor on a DeviceNet Network
Publication 2755-6.8
17. Next to Data Map, select Output to view the output file (N22).
The dialog shows the data table map for the N22 file. The data
map represents data sent to the AdaptaScan Reader through the
SDN Scanner (BTW N22)
•
Word 1 writes one byte of data to the module.
•
Bit 7 of word 1 is the ‘send next message’ bit.
18. Change Map Data From to Poll Message.
19. Change Map Data To Block Transfer 62.
20. Change N22:0 to 1.
21. Change No. Bits to 8.
22. Click Apply Segment button.
23. Click Close to return the Scan List Editor dialog.
24. Click the Save To File button and then the Save to SDN button to
download the scan list the 1771-SDN Scanner.
Important:
Before clicking the Save to SDN button , the
SDN Scanner must be in Idle Mode. Set bit 0 of
word 0 in the BTW N22 file to 0 (N22:0/0=0).
Another way to place the SDN Scanner in Idle
Mode is to put the PLC into Program Mode.
