Knowledge Base
/ Rockwell In-chassis
/ ControlLogix
/ MVI56 Series
What is the purpose of the last 4 branches of Rung 1 of Start/Power Up?
These branches have no purpose in normal operation. However, if it is necessary to write a string longer than 200 characters write-wait logic will have to be added to the ladder. In that case the 4 branches would be involved.
As there is no write-wait logic in our sample ladder there is no observable use for the branches.