Centroid Community CNC Support Forum

I'm on version 5.06 I would like to update my PLC. Is there a particular place that I need to put it so that it shows up on the list during install
Is there a utility just to load PLCs?

This is not an Acorn.

You just install CNC12 v5.08 over the top of CNC12 v5.06.

When the CNC12 installer asks if you want to install a PLC program, answer No.

You do not need to installer to install a PLC program and default configuration and parameter files, because you already have files in place that are suited to your machine.

Or maybe I misread your inquiry. You don't want to update CNC12; but somehow you want to "update" your PLC program?

What exactly do you want to change, and what exactly do you want to leave the same?

I just put the v6 file in the directory and it appears to be the one used when I check MPU. I should probably upgrade to v5.08 but last time I tried I lost the VCP and didn't want to pluck with it. I reloaded 5.06 and restored...

In this case, no action is needed other than to copy "Centroid_ALLIN1DC_Lathe_Hardinge-r6.src" into your c:\cnct directory.

That is the PLC program source that was compiled to make the "mpu.plc" file which is already in the c:\cnct directory, and is therefore in use on your control.

Even though the source file does not directly affect control operation in any way, it is good practice to keep a copy of your current source file in your c:\cnct directory. That way it will be available when you, or anyone helping you, needs to make changes.

In the absence of that file, anyone (other than me) who tries to help you with PLC program changes or corrections is likely to start with the newest file they find on your control. If that is "Centroid_ALLIN1DC_Lathe_Hardinge-r5.src", then when they made the new changes and corrections, you would lose the corrections that were made in the "...-r6.src" revision.

If this were an entirely different situation, and you had, for example, a new PLC program source file that was not already in use on your control, and you wanted to have that file on your control, and have it in use, then you would:
1) Copy the new source file plus any supporting files (e.g. plcmsg.txt, mfunc*.mac, cnctch.mac, etc.) into c:\cnct
2) At a command prompt in the c:\cnct directory, compile the new source file with a command similar to: Step 2 would only be needed if whomever provided the new PLC program source file to you did not also include with it the compiled results: "mpu.plc", "mpu.dbg", "mpu.sym", and "plc.map".

Understood. For some reason I did not copy the V6 src file into the directory...I'm good.