November 7, 2020

Special Rules to design ladder diagram logic

-Signals selection, Decisions section and Actions Section

-The sequence of the logic should be left to right

-Input address cannot be used as an output address

-Input devices (Control devices) can be connected Parallel or Series:

-Output or Load device connection must be in proper order.

-Line number & Numerical Cross-Reference as per the order.

-Same input can use in multiple times in a program:

-Output cannot be used multiple times in one program, except in set/reset and latch/ unlatch functions.

-Outputs address can be used as inputs address

-Input address cannot be used as an output address

2 comments:

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