Ladder instruction list – Yaskawa MP920 User's Manual Design User Manual

Page 58

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2 MP920 Specifications and System Configuration

2.1.3 Function Lists

2-32

„

Ladder Instruction List

Table 2.23 lists the ladder instructions.

Table 2.23 Ladder Instructions

Type

Name

Symbol

Description

Program Control
Instructions

CHILD DRAWING
CALL

SEE

Designate the child drawing number or the grandchild drawing num-
ber to be called after SEE.
SEE H01

MOTION
PROGRAM CALL

MSEE

Designate the motion program number and the MSEE work register
address to be called after MSEE.
MSEE MPM001 DA00000

FOR Structure

FOR
:
:
FEND

Repeats execution statement 1.
FOR V = a to b by c
V: Can designate any integer register I or J.
a, b, c: Can designate an any integer value
(b > a > 0, c > 0).
FEND: End of FOR instruction.

WHILE Structure

WHILE
:
ON/OFF
:
WEND

Repeats execution statement 2.
WEND: End of WHILE-ON/OFF instruction

IF Structure

IFON/IFOFF
:
ELSE
:
IEND

Conditional execution statement
IEND: End of IFON/IFOFF instruction

DRAWING END

DEND

End of drawing (DWG)

COMMENT

“nnnnnnn”

A character string enclosed in quotation marks is treated as a com-
ment.

FUNCTION I/F

FSTART

Calls a function.

FIN

Function input instruction
Stores input data from the designated input register in the function
input register.

FOUT

Function output instruction
Stores output data from the function output register in the designated
output register.

XCALL

Calls an extension program.

Direct I/O
Instructions

INPUT STRAIGHT

INS

Executes the input and storage of data with interrupts disabled.

OUTPUT
STRAIGHT

OUTS

Executes the setting and output of data with interrupts disabled.

Relay Circuit
Instruction

NO CONTACT

No limit in a series circuit.
Bit designation of any register as a relay number is possible.

NC CONTACT

No limit in a series circuit.
Bit designation of any register as a relay number is possible.

INS MA00100

OUTS MA00100

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