Rockwell Automation 1771-DCM USER MANUAL 1771-DCM - Manual (Page 27)

Programming the 1771-DCM
Chapter 6
6Ć6
Your ladder program for the supervisory processor must place data in
output image table word addresses for transfer to the 1771–DCM and
move data from input image table word addresses as needed by your
application. We leave this ladder logic to you because your application
and processor’s set of instructions determine how you would do this.
Block Transfer
We present block transfer rungs for the supervisory processor when the
1771–DCM is operating in block transfer mode (Figure 6.4 for a
PLC–2/30 supervisory processor, Figure 6.5 for PLC–3, and Figure 6.6
for a PLC–5 family processor).