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8. Switch between soft components
8-1. Function overview
When the internal lighting coupling, relays or transistor are damaged, the corresponding input/output terminals
will be out of use. Users either revise the program or ask the manufactures for help, which is very troublesome
and affects the users’ normal work schedule.
The new type PLC developed independently by Xinje can break the one-to-one correspondence, users only need
to change the soft component’s value by HMI, then the corresponding terminal will activate.
Before(Complicated and not effective)
Now (Simple, fast and effective)
Output Y3 is
broken
Solution 1
Revise the complicated
program
Solution 2
Change PLC
Output Y3 is
broken
Solution
Change the mapping relation of Y3
and
its
corresponding
soft
component, and use other empty
point, like Y4
