Rockwell Automation 2706 DL20 SERIES G USER MANUAL - Manual (Page 157)

Appendix G
Application Notes
G–5
Table G.A
PLC-2 Sequencer Outputs
PC Word Step
BCD
Format
Binary Format Comments
037 1 3010 0011000000010000
Special Message 10 (Clear
Queues)
040 2 0000 0000000000000000 Null Step
041 3 2012 0010000000010010
Hi Data
(1st Variable)
042 4 0000 0000000000000000 Null Step
043 5 1034 0001000000110100
Low Data
(1st Variable)
044 6 0000 0000000000000000 Null Step
045 7 3020 0011000000100000 Message Member
046 8 0000 0000000000000000 Null Step
The steps of a sequencer instruction can be viewed on the 1770-T3 Industrial
Terminal by moving the cursor to the sequencer instruction and pressing
1 for BCD display format or 0 for binary display
format.
The NULL STEPS shown in the above sequence are added to satisfy timing
requirements of the DL20.
In the following program example, steps 1 through 8 shown above represent
word 037-046 (octal) as defined in the sequencer instruction.
The resulting message would be displayed:
TIMER 032 = 1234
The variable 1234 shown on the above display and in the example steps is for
illustration purposes only. Actually, the free running timer 032 in the rung
examples to follow range from 0 to 999.