A Thread Starter Anonymous Jan 12, 2002 #1 I need to determin the resolution of an a to d converter used by an AB system Micro logix 1200. Also how does this relate to the word length used?
I need to determin the resolution of an a to d converter used by an AB system Micro logix 1200. Also how does this relate to the word length used?
A Anonymous Jan 12, 2002 #2 The resolution of a signal is a measure of how well you can represent a physical or analog signal. For example, for a 12 bit word like in AB PLC-5 you have a resolution of 2 to the 12th or 4096 "steps". If you are measuring temperature in the 0 - 100 degress, then: 100 / 4096 = 0.0244 deg per step. That means that if you need resolution of 0.01 deg, this 12 bit channel will not help you.
The resolution of a signal is a measure of how well you can represent a physical or analog signal. For example, for a 12 bit word like in AB PLC-5 you have a resolution of 2 to the 12th or 4096 "steps". If you are measuring temperature in the 0 - 100 degress, then: 100 / 4096 = 0.0244 deg per step. That means that if you need resolution of 0.01 deg, this 12 bit channel will not help you.
D Darrin Jan 15, 2002 #3 The Micrologix 1200 analog conversions are 15bit plus a sign bit for bipolar indication i.e. -32767 to +32676.
The Micrologix 1200 analog conversions are 15bit plus a sign bit for bipolar indication i.e. -32767 to +32676.
