Mitsubishi MELSEC-A series, Руководство по программированию

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2. INSTRUCTIONS
2
−
7
MELSEC-A
(6) Termination instructions
Table 2.8 Termination Instructions
Classi-
fication Un
it
Instruction
Symbol
Symbol Contents of Processing
Execu-
tion Con-
dition
Nu
m
b
e
r
of steps
Inde
x
S
ubset
Applicable CPU Page

FEND
Always used at the end of the main
routine program to
terminate processing.
1
!
5-34
Program
end

END

Always used at the end of the
sequence program to return to
step 0.
1
!
5-36
(7) Other instructions
Table 2.9 Other Instructions
Classi-
fication Un
it
Instruction
Symbol
Symbol Contents of Processing
Execu-
tion Con-
dition
Nu
m
b
e
r
of steps
Inde
x
S
ubset
Applicable CPU Page
Stop

STOP
Resets output after the input
condition is enabled, and stops the
sequence program. The sequence
program is resumed by setting the
RUN key switch to RUN.
1
!
5-38
No
opera-
tion

NOP

No operation
For program erasure or space
1
!
5-40
*1: For the number of steps when extension devices are used or when index qualification is performed to
bit devices for AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board, refer to Section 3.8.1.
*2: The mark in the Index column indicates that index qualification can be performed with the AnA,
A2AS, AnU, QCPU-A (A Mode) and A2USH board only.
*3: The mark in the Subset column indicates that subset processing can be performed with the A3H,
A3M, AnA, A2AS, AnU, QCPU-A (A Mode) and A2USH board only.
*1
*1