How to set arbitrary encoder position in C file

[funding33]

quick Q:

how do we set arbitrary encoder position when homing in C file instead of Zero(ch)?

is that right:
DisableAxis(CHNO_X);
chan[CHNO_X].Position = -0.1234567E+8; // X init point
EnableAxis(CHNO_X);

[m_c]

you want to use EnableChanDest(int ch, double Dest).

So from your post -

DisableAxis(CHNO_X);
EnableChanDest(CHNO_X, -0.123456E+8); X init Point

[TomKerekes]

I think it is actually Axis not Chan

DisableAxis(CHNO_X);
EnableAxisDest(CHNO_X, -0.123456E+8); // X init Point

[m_c]

You could well be right, and that would explain why my lathe still occasionally disables due to following error during initialisation...

[funding33]

That does not work. It alters destination but not current position. Verified this on console. "Pos" reads the same value before and after EnableAxisDest:

Attachment 392523

[m_c]

I've not got a KFlop handy to test, but I thought that function should set the position to match the destination.

You may need to use

ch0->position=-0.123456E6;

However, AFAIK you can't use a constant to select the channel number, and I'm not sure if you'd also have to set the destination to match before enabling.

[funding33]

that is same as was suggested in initial header post. "chan[CHNO_X].Position" type syntax allows to put some definition in to [] braces. And later "EnableAxis" seems to reset destination to current Pos. All looks to be working but lets wait confirmation from TomKerekes if there is no underwater stones doing so.

[m_c]

So it is.
In my defence, I've had a hard day!

As long as it's updating the values how you want, then it's fine.
I'm assuming you're now using chan[CHNO_X].Position to set the position, followed by EnableAxisDest[CHNO_X] to enable at the value you want?