5/15/2014 7:50 AM | |
Posts: 1064 Rating: (72) |
you can do something like this in ob 1 at the beginning an i0.0 = i0.0 this will invert the state |
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5/15/2014 8:08 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877) |
Hello playerslight, Thank you very much for immediate reply. Do you mean, even I0.0 is not in OB1 & somewhere else in logic, user has to define it as =I0.0 in OB1 at the begining? So this will invert the bit logic in whole PLC where ever I0.0 is used. Is my inetrpretation correct? Thanks in advance. DEEP. |
Last edited by: PISCEAN 2010 at: 5/15/2014 8:11 AM |
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5/15/2014 8:15 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877) |
Hello Aret , I am not asking about change in hardware of PLC. I am asking if at any DI, if the user want to change its state as NO to NC or vice varsa, can user inverse the corresponding bit status in PLC software logic? Hope this is much clear. DEEP. |
5/15/2014 8:27 AM | |
Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)
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There is nothing more permanent then a temporary fix but i agree inverting with a small relay, placed visible is a good option. While you guys where posting so fast i was writing an option in between most answers. i'll attach it anyway. Regards, Marcjan Attachmentinvert_input.pdf (96 Downloads) |
Problem solved? |
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