Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD - Manual (Page 97)

Appendix C
Example Ladder Logic Program
C-5
Word B26:0 is used by the program file 2 to set the needed
download-required bits on power-up of the processor or when the
processor is switched from program mode to run mode. If a configuration
block-transfer is required while the processor is in the run mode, it requires
additional ladder logic to be added to latch the appropriate
download-required bit. The program will automatically unlatch the
download-required bit after the successful block-transfer. Configuration
blocks can also be downloaded by setting the download-required bit in the
table from programming terminal.
Important: The ladder logic constantly checks the dynamic block for
changes and will automatically send it out if a change is made in the
dynamic block.
Miscellaneous Bits
File Word Bit Description
B21 3 15 Copy configuration blocks
Data Blocks
File Words Description
B30 1-23 LoopĆ1 configuration block
B31 1-23 LoopĆ2 configuration block
B32 1-23 LoopĆ3 configuration block
B33 1-23 LoopĆ4 configuration block
B34 1-23 LoopĆ5 configuration block
B35 1-23 LoopĆ6 configuration block
B36 1-23 LoopĆ7 configuration block
B37 1-23 LoopĆ8 configuration block
B38 1-57 Gains block
B39 1-34 Dynamic block
B40 1-64 System status block