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Originally Posted by James Lightfoot
1) Encoders [US Digital E4P-250-250-N-S-D-D-B encoder (am-0174)] connect to 2 GPIO points (Channels A & B), correct?
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You need 2 channels to use a quadrature encoder properly. One of the Channels will provide power in addition to being an input channel. The other is just a channel.
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2) Are the GPIO points both Inputs and Outputs or just Inputs?
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GPIO means General Purpose
Input/Output. Each pin can be either input or output depending on software.
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3) Do the GPIO points use the same connectors as the premade PWM cables?
A)If so, how do we connect "extra inputs & outputs (either via the GPIO
or Relay points) that do not come w/ premade cables?
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Yes, PWM outputs, GPIO, Relay outputs and Analog inputs all use the same connectors.
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3) We are using and ultrasonic sensor (Maxbotix MB7366) that has 3 output options (Analog Voltage, PWN, Serial). Can we connect the PWN singal to a GPIO as an input or do we have to use the Analog input route?
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The Maxbotix sensor PWM output can be read by the GPIO. There may be more coding involved than using the Analog Voltage method.
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4) We are using an electromagnet that uses 12VDC. Can we connect that directly to Solenoid Output card or should I use an interposing relay (24VDC coil) and then use a NO contact to energize the electromagnet?
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It depends on how much current your electromagnet uses. If it's less than .75A, then you can use the Solenoid Breakout. If not, then you can use a Spike, which can handle up to 20A continuous.