Host Engineering Forum

General Category => Do-more CPUs and Do-more Designer Software => Topic started by: DRMartin on August 02, 2019, 04:20:52 PM

Title: HSIO and encoders
Post by: DRMartin on August 02, 2019, 04:20:52 PM

Can someone explain the logic behind the HSIO modules not supporting 5V inputs for encoders?  Would seem the HSIOs are made for motion applications.  Why not support 5V, even if it required hard jumpers or dip switches to select.  Would save on having to add external signal conditioners for servo/stepper applications.

Title: Re: HSIO and encoders
Post by: BobO on August 02, 2019, 04:59:51 PM

Quote from: DRMartin on August 02, 2019, 04:20:52 PM

Can someone explain the logic behind the HSIO modules not supporting 5V inputs for encoders?  Would seem the HSIOs are made for motion applications.  Why not support 5V, even if it required hard jumpers or dip switches to select.  Would save on having to add external signal conditioners for servo/stepper applications.

Because 5v, high speed, and opto-isolators don't play well together.