Rslogix 5000 data type INT change sign

Hi, my name is Ivan, I need to change the sign in a register INT data type. The register show me -32767 value. So I need quit the sign in the register with a function or change the bit number 15 from 1 to 0. Some body have experience in this issue?

Thank´s

Ivan

It depends on what you are trying to accomplish.

1) Use the ABS function to change it to an absolute value. Your register will then hold +32767.


2) Use OTU TagName.15 to clear only bit 15. This is not the same thing as an absolute value function and will change the numeric value of your number. -32767 is 1000000000000001. If you simply unlatch bit 15 then it becomes 0000000000000001, or just 1.

Multiply by -1.

Thanks TConnolly and rdrast for your answers, the best option for my purpose is unlatch bit 15.

Regards from Sonora, Mexico

Ivan