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224XP+Analog Signal

3/29/2010 9:39 AM	Rate (0)
Ayubo Posts: 18 Rating: (0)	Hi, I am trying to find out themaximum cable length between Analog Signal(0-10V) and CPU224XP? Ayubo
Ayubo Posts: 18 Rating: (0)
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4/16/2010 10:04 PM	Rate (0)
aiden251181 Posts: 5 Rating: (0)	Hi ayubo, i believe its 100m as standard
aiden251181 Posts: 5 Rating: (0)	Last edited by: aiden251181 at: 4/16/2010 10:05 PM
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4/16/2010 10:09 PM	Rate (0)
Tiago_Tre Experienced Member Joined: 10/30/2008 Last visit: 1/21/2026 Posts: 64 Rating: (2)	Hi Ayubo, You should consider the voltage drop as a function of cable length. R = (p * L) / S SI units (International System) for the variables involved are: resistance in ohms (W), resistivity (or specific resistance) in ohm-meters (W * m) length in meters (m) and cross-sectional area in square meter (m²). R = Resistance p= Lambda () Resistivity for copper 0.0162 W * m L = Cable length in m S = Surface in m² Hint: consider the maximum length depending on the maximum voltage drop that your system accepts Best Regards!
	Tiago Martins Machado
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4/16/2010 10:22 PM	Rate (0)
Tiago_Tre Experienced Member Joined: 10/30/2008 Last visit: 1/21/2026 Posts: 64 Rating: (2)	Oops! Almost I almost forgot! To calculate the voltage drop use U = R * I Where: U = Voltage (Consider the minimum accepted by your system) R = Resistance (Value to be found) I = Current (Consider 10% below the maximum allowed by the input or analog output) The resistance found with this equation you use the equation of the previous post and consider the resistivity of copper and the area of thecable you are using to find the maximum distance from your cable. If not enough you should reconsider the area of thecable or revise its maximum voltage drop. Best Regards!
	Last edited by: Tiago_Tre at: 4/16/2010 10:24 PM Tiago Martins Machado
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4/19/2010 10:09 AM	Rate (0)
Ayubo Posts: 18 Rating: (0)	thanks a lot.
Ayubo Posts: 18 Rating: (0)
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