720
7 APPLICATION INSTRUCTIONS
7.17 Program Control Instructions
Program output OFF standby
POFF(P)
• Changes the execution type of the program with the file name stored in the device designated by (S).
• Only the programs stored in the drive No. 0 (program memory) can be set as the stand-by type.
• This instruction will be given priority even in cases when a program execution type has been designated in the parameters.
• It is not necessary to designate the extension (.QPG) with the file name. (Only .QPG files will be acted on.)
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
Non-execution processing is identical to the processing that is conducted when the condition contacts for the
individual coil instructions are in the OFF state.
The operation results for the individual coil instructions following non-execution processing will be as follows,
regardless of the ON/OFF status of the individual contacts:
• OUT instruction: Forced OFF
• SET instruction, RST instruction, SFT instruction, Basic instruction, Application instruction: Maintains status
• PLS instruction, Pulse generation instruction (P): Processing identical to when condition contacts are OFF
• Current value of low speed/high speed timer: 0
• Current value of retentive timer, Current value of counter: Preserves
(S): File name of the program to be set in the standby status by turning OFF the output, or the device where the file name is stored (character string)
Setting
data
Internal device R, ZR J\ U\G Zn Constant
$
Others
Bit Word Bit Word
(S)
• Scan execution type: Turns OFF outputs at the next scan (Non-execution processing). Programs are set as the stand-by type after the subsequent scan.
• Low speed execution type: Stops the execution of the low speed execution type program and turns OFF outputs at the next scan. Programs are set as the
stand-by type after the subsequent scan.
• Fixed scan execution type: The type of the program changes to the scan execution type and the program turns off outputs at the next scan (Non-execution
processing). The type of the program changes to the standby type at the scan after that.
Error
code
Error details Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
2410 The program with the file name specified by (S) does not exist.
2411 The program with the file name designated by (S) is not registered in the
parameters.
4101 The range of the device specified by (S) exceeds the range of the
corresponding device.
Process
High
performance
Redundant
Universal
LCPU
Basic
Command
Command
POFF
POFFP
S
S
POFF
POFFP
To Next Page
Loading...
