Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 197)

Application Example 2, Periodic Block
Transfer
Appendix C
CĆ13
rung 32* This rung unconditionally energizes storage bit 050/00. It
serves to initiate a load/enter sequence on initial power-up
of the PC processor, and when PC processor operation is
changed from program to run mode. This bit will be low
for one program scan at power-up and energized
unconditionally thereafter. It is examined in rung 11 for a
low logic state and thereby initiates the load/enter
sequence.
*minimum required rungs to program the module
Descriptive Figures and Tables
Refer to the following figures and tables which describe the PLC-2 family
program.
data table information showing the storage and instruction address
(Table C.A)
functional bit/word addresses and descriptions (Table C.B)
data table map showing the dynamic block, loop blocks and status
block locations (Figure C.3)
recommended output annunciators (Table C.C)