M63 turns off one of the 16 auxiliary outputs, synchronised with the start of the next motion command.

Syntax

M63 P__

Output

Aux 1–16 OFF

Timing

At next motion

CAUTION

If no motion follows, the output won't turn off. Put a motion command straight after M63.

1. Parameters

Word	Meaning
P (required)	Auxiliary output number to turn off, 1 to 16.

2. Setup

Configure the output as an Auxiliary Output whose number matches P (for example, P1 → Auxiliary Output 1).

Auxiliary outputs	Control
1 – 6	G-code, or a toggle input assigned to a button.
7 – 16	G-code only.

N10 G0 X0
N20 M62 P1
N30 X10
N40 M63 P1
N50 X20

Code	Result
G0 X0	Moves X to 0.
M62 P1	Arms aux output 1 to turn on at the next motion.
X10	X starts moving to 10 and aux output 1 turns on.
M63 P1	Arms aux output 1 to turn off at the next motion.
X20	X moves to 20 and aux output 1 turns off.