Mitsubishi MELSEC Q Series Programming Manual

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PLOW(P)
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7.17 Program control instructions 7.17.4 Program low speed execution registration instruction (PLOW(P))
7.17.4 Program low speed execution registration instruction
(PLOW(P))
PLOW(P)
Function
(1) Sets the program whose file name is being stored at the device designated by in
low-speed execution type.
(2) Only the programs stored in the drive No. 0 (program memory/internal RAM) can be set as
the low speed execution type.
(3) Designated programs assume the low speed execution type with END processing.
When programs A, B, and C exist and program A performs "PLOW" of program D.
(Assume that the constant scan has been set.)
(4) This instruction will be given priority even in cases when a program execution type has been
designated in the parameters.
(5) It is not necessary to designate the extension (.QPG) with the file name.
(Only .QPG files will be acted on.)
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and
an error code is stored into SD0.
• The program with the designated file name does not exist. (Error code: 2410)
• There is a CHK instruction contained within the program whose file name has been
designated. (Error code: 4235)
: File name of the program to be set as a low speed execution type, or head number of the devices where the
file name is stored (character string)
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
$
Other
Bit Word Bit Word
–– –– ––
Process
High
performance
Redundant Universal
Basic
LCPU
Command
Command
PLOW
PLOWP
S
S
PLOW
PLOWP
S
S
S
Example
ABCENDABCDEND
Scan Scan
Waiting for constant
Execution of
PLOW
Program D
is executed

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English