[Karl_T]

I've attached two files:

1) a picture of the turret encoder on my Hardinge CHNC
2) the Electrical print of the encoder.

I've not seen or dealt with a device that looks like this before.

I need to get turret position into Camsoft. Looking at this print, is it as simple as connecting A B C D to four inputs on the Opto 22 board? Then decode position as four bits of base 2? (I'm curious; there's eight turret locations - 3 bits would be enough) Assuming this encoder is still working, that is.

Or should I replace this device with something else? What? FWIW, I'm using a 1840 Galil card and have an extra axis available for the turret. I'm out of inputs and would prefer to use an encoder. But the only was I see this working would require homing the turret on every startup.

Karl