Ai (after input), Trippoint, N is a signed integer – Yaskawa LEGEND-MC User Manual

Page 69

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LEGEND-MC User’s Manual

AI (After Input)

[Trippoint]

DESCRIPTION:

The AI command is used in motion programs to wait until after the specified input condition has occurred.
If n is positive, it waits for the input to go high. If n is negative, it waits for n to go low. To wait for a
transition from high to low or low to high, put two AI commands together. AI is only available for local
inputs.

ARGUMENTS: AI +/-n

where

n is a signed integer

USAGE:

RELATED COMMANDS:

EXAMPLES:

NOTE: The AI command actually halts execution until specified input is at desired logic level. Use the conditional Jump
command (JP) or input interrupt (II) if you do not want the program sequence to halt.

While Moving

Yes

Minimum Value

1

In a Program

Yes

Maximum Value

8

Command Line

Yes

Default Value

---

Can be Interrogated

No

Default Format

---

Used as an Operand

No

Distributed Control

No, Local

@IN[n]

Function to read digital input 1 through 8

"II" Input

interrupt

#ININT

Special label for input interrupt

#A

Begin Program

AI 7

Wait until input 7 is high

SP 10000

Speed is 10000 counts/sec

AC 20000

Acceleration is 20000 counts/sec2

PR 400

Specify position

BG Begin

motion

AI+ 7; AI- 7

Wait for falling edge on input 7

EN

End Program

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