Quote:
Originally Posted by rsisk
For us folks lacking such electrical knowledge, could someone comment on what this means? I checked the spec sheet, but it was not much help.
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On the
specifications sheet, at the bottom left on page 2 is a schematic showing how to wire these resistors. The sentence simply means that these resistors and the connection of them to supply voltage is not done internally to the encoder. This means that if you don't use pull up resistors, when the output signal is supposed to be high, it will instead be open (connected to nothing).
If you connect this encoder to two of the DIO ports on the RoboRIO, this will not be necessary as those pull up resistors are implemented inside the RIO. I haven't checked the internal wiring of the various motor controllers which support encoders (Jaguar, SRX) to see if they have this resistor internally or not; from the comment, I suspect that at least one of them does not.