Inverting bits in word

[MasterTomson 0]

Hi everybody Can anyone tell me how to invert all bits in Word…for example I have 0000_1111__0000_1010 and I would like to get 1111_0000_1111_0101… I would like to solve this exercise in LAD… My solution Add one to the first word and then multiply by -1 but it is not working for all example… Thank you very much for your help Best regards for everybody

[Groo 7]

What PLC. If S7-300 or S7-400 there is the INV_I instruction

[MasterTomson 0]

I find solution on http://www.scribd.com/doc/60460550/12/SIMATIC-Logical-Operations-Instructions I hope it will be usefull for everyboy Best regards Edited 6 Sep 2011 by MasterTomson

[Joe E. 259]

I was going to suggest an XOR instruction, but you beat me to it.

[MasterTomson 0]

It is good idea... Use WXOR for that...For one input we put our signal, for second for example 16#FFFF when we work with variable like word...We get in output Not our signal...:) Best regards...:)