M54, M55, M56, M57 (General purpose IO)

17min

Please note that mentioned commands may fail during loading and/or simulation.
To make your macro code avoid these errors please take a look at the manual section ﻿Run behavior during loading of job file and simulation﻿
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M54 P...Set output.
M54 P1  (set AUX1 out to 1)
M54 E... Q...Set PWM output E to permille value Q (0 <= y <= 1000)
M54 E2 Q500 (Set PWM2 to 50% PWM)
M55 P...Clear output.
M55 P1 (set AUX1 out to 0)
M56 P... Read input. The result is stored in ﻿variable  #5399
M56 P3 (Read AUX in 3)
If [#5399 == 1]
   Msg "AUX3=ON"
Else
   Msg "AUX3=OFF"
endif
M56 P ... L...  Q...Read digital input P and specify wait mode, the result is stored in variable #5399
P...: the input number
L0: do not wait
L1: Wait for High
L2: Wait for Low
Q...: timeout
M56 P3 L2 Q30 (Read AUX in 3)
If [#5399 == -1]
   Errmsg "Timeout while waiting for AUX3 becoming low"
Else
   Msg "AUX3 is off"
Endif
Note that we use wait (L2) here, in the event of a timeout, the value of #5399 is -1.
M56 E…Read analog input E, result stored in #5399
M56 E3
Msg "analog value is " #5399
Read other inputs using M56M56 P...
Input
P value
Home Inputs
51 – 56 (axis X .. C)
Probe Input
61
Sync Input
62
HWA Input
63
HWB Input
64
ESTOP1
65
ESTOP2
66
EXTERR
67
PAUSE
68
Example: read home-input of X axis:
M56 P51
If [#5399 == 1]
   Msg "HOME X=ON"
Else
   Msg "HOME X=OFF"
endif
Read outputs using M57Read output x, store result in variable #5399
M57 P...
Output
P value
AUX1-AUXn
1 to n
Machine On
51
Drive Enable
52
Coolant1 (Flood)
61
Coolant2 (Mist)
62
Tool
63
Tool direction
64
M57 E...Read PWM output, result stored in #5399
M57 E3
If [#5399 == 0]
   Msg "PWM IS OFF"
Else
   Msg "PWM IS ON, VALUE="#5399
endif
Optional IOCARDIf a relay board is used such as RLY8, the IO number P or E is specified like in the following examples:
value of 103 means card 1 port 3
value of 208 means card 2 port 8
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M48 - M53 (Feed-Speed Override Control)

M26, M27 (Rotary axis clamping)

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TABLE OF CONTENTS

Read other inputs using M56

Read outputs using M57

M57 E...

Optional IOCARD

Input	P value
Home Inputs	51 – 56 (axis X .. C)
Probe Input	61
Sync Input	62
HWA Input	63
HWB Input	64
ESTOP1	65
ESTOP2	66
EXTERR	67
PAUSE	68

Output	P value
AUX1-AUXn	1 to n
Machine On	51
Drive Enable	52
Coolant1 (Flood)	61
Coolant2 (Mist)	62
Tool	63
Tool direction	64