Clear MDI Screen Fanuc Parameter 3203

Clear MDI Screen Fanuc Parameter 3203

Messing With Parameters Can Be Fatal!!!!!

Clear MDI Screen Fanuc Parameter, to change this parameters you need to go to the setting screen in MDI. Now put a 1 in the parameter write box.

Today we are going to change the parameter that allows us to clear the MDI screen by pressing reset.

Fanuc Parameter
Parameter 03203 Bit 7 (MCL)

If you set parameter 3203 BIT 7 (MCL) to a 1 then when you press reset your MDI screen will be cleared.


Clear MDI Screen Fanuc Parameter

Clear MDI Screen Fanuc Parameter 3203

Ever thought how annoying it is when you want to do a tool change and you type

T01 M6;

Then later you want to do the same thing but the MDI screen has cleared. Help is at hand.

This was me in fancy dress when i was younger.

Anyway all you need to do is tinker with bit 7 (#7)

That means it will either clear when you press reset or just stay there waiting for you.

Please note you will need an M30 at the end of your MDI program for this to work.

Parameters You may Need to Change

3202 Unlock Program 9000 to 9999 and 8000 to 8999 to Edit

3401 Calculator Type Decimal Point or Integer

3402 G Codes that are Active When The machine is Turned On

6005 Allows the Use of Local Subroutines (Newer Control)

6050-6059  Allows you to Call a 9000 series Program with a G Code

6080-6089 Allows you to Call a 9000 series Program with An M Code

5003 Retain Geometry when you Press Reset

3291 Wear Offset requires Key to Adjust

8134 3453 allows you to use ,R and ,C (Rads and Chamfers)

That’s it away you go.

Visit this guy if you don’t have a manual.

Oh just one other thing before you go off and cripple your machine forever.

Do yourself a favor take a picture of the screen before you change a parameter. If you aint got a camera then you must have a piece of paper.

Even better back everything up.


If you have been affected by any of the issues in this post or need CNC Counselling then contact me.

Or call us

If you want to learn to program CNC Milling Machines

Look no further Contact CNC Training Centre


1 Comment

Nasr Lotfy

June 22, 2020 at 4:10 am

Dear friend, I have very important and very urgent question ?
I have a turning machine control type ( FANUC Series Oi Mate – TC ),
But the ( MDI ) key mode if I press key ( MDI mode ) does not work,
Are you have any other way to activate ( MDI ) mode at I Can change PARAMETER or other operation for machine ?

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