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Analog Comparison for signed integer?

floyd1212 All Messages By This Member #178673 I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA
matt_rasmussen_2000 All Messages By This Member #178674 Where are you getting the values from, self generated or from a device/feedback? And what is the range of values you're comparing? toggle quoted message Show quoted text --- In Crestron@..., "floyd1212" <floyd1212@...> wrote: I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA
floyd1212 All Messages By This Member #178675 my values are generated with an INIT, and can range from -2d to 32d. I just gave it some more thought, and I'm thinking I can compare my value to 32,768, instead of zero, and when my value is > 32,768 it is "negative", and when it is <= 32,768 it is either "positive" or 0d. Right? toggle quoted message Show quoted text --- In Crestron@..., "matt_rasmussen_2000" <mjrtoo@...> wrote: Where are you getting the values from, self generated or from a device/feedback? And what is the range of values you're comparing? --- In Crestron@..., "floyd1212" <floyd1212@> wrote: I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA
matt_rasmussen_2000 All Messages By This Member #178676 There you go toggle quoted message Show quoted text --- In Crestron@..., "floyd1212" <floyd1212@...> wrote: my values are generated with an INIT, and can range from -2d to 32d. I just gave it some more thought, and I'm thinking I can compare my value to 32,768, instead of zero, and when my value is > 32,768 it is "negative", and when it is <= 32,768 it is either "positive" or 0d. Right? --- In Crestron@..., "matt_rasmussen_2000" <mjrtoo@> wrote: Where are you getting the values from, self generated or from a device/feedback? And what is the range of values you're comparing? --- In Crestron@..., "floyd1212" <floyd1212@> wrote: I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA
matt_rasmussen_2000 All Messages By This Member #178677 Although, take a look at the help file, I dont remember if the acomp has a signed/unsigned parameter. toggle quoted message Show quoted text --- In Crestron@..., "floyd1212" <floyd1212@...> wrote: my values are generated with an INIT, and can range from -2d to 32d. I just gave it some more thought, and I'm thinking I can compare my value to 32,768, instead of zero, and when my value is > 32,768 it is "negative", and when it is <= 32,768 it is either "positive" or 0d. Right? --- In Crestron@..., "matt_rasmussen_2000" <mjrtoo@> wrote: Where are you getting the values from, self generated or from a device/feedback? And what is the range of values you're comparing? --- In Crestron@..., "floyd1212" <floyd1212@> wrote: I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA
Chip #178678 You could also use an ATOD symbol. Negative numbers are the only ones that have the highest bit set. - Chip toggle quoted message Show quoted text --- In Crestron@..., "floyd1212" <floyd1212@...> wrote: my values are generated with an INIT, and can range from -2d to 32d. I just gave it some more thought, and I'm thinking I can compare my value to 32,768, instead of zero, and when my value is > 32,768 it is "negative", and when it is <= 32,768 it is either "positive" or 0d. Right? --- In Crestron@..., "matt_rasmussen_2000" <mjrtoo@> wrote: Where are you getting the values from, self generated or from a device/feedback? And what is the range of values you're comparing? --- In Crestron@..., "floyd1212" <floyd1212@> wrote: I was trying to use everyone's favorite symbol, Analog Comparison (Full Set), to tell me when an analog signal was either positive, negative, or zero, but then I realized it is treating analogs as unsigned values. Needless to say, I was never getting an indication that the value was negative. Is there a combination of symbols I could use instead for getting the results I'm looking for? I actually only need to know when the value is >= 0, or < 0. TIA

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