Mitsubishi Electric MELSEC iQ-R Series - Debugging and Failure Diagnostic Instructions; Resetting the Error Display and the Annunciator Display

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7 APPLICATION INSTRUCTIONS
7.7 Debugging and Failure Diagnostic Instructions
7.7 Debugging and Failure Diagnostic Instructions
Resetting the error display and the annunciator display
LEDR
This instruction resets the self-diagnostic error (continuation error) display and the annunciator display of the CPU module.
■Execution condition
Processing details
• This instruction resets the self-diagnostic error (continuation error) display and the annunciator display of the CPU module.
Executing the instruction once resets both the error display and the annunciator display.
• When a self-diagnostic error has occurred, the CPU module operates as follows:
• When the annunciator (F) is on, the CPU module operates as follows:
Operation error
There is no operation error.
Ladder ST
ENO:=LEDR(EN);
FBD/LD
Instruction Execution condition
LEDR
• When a self-diagnostic error (continuation error) has occurred
The ERROR LED on the front of the CPU module remains off.
The values in SM0, SM1, and SD0 are not reset automatically at this time. Reset the values by the program.
• When a battery error has occurred
When the LEDR instruction is executed after battery replacement, the BATTERY LED on the front of the CPU module turns off. At this time, SM51 also turns off.
• The USER LED turns off.
• The values in SD62, SD63, and SD64 to SD79 are all cleared to 0.
(1) All data are cleared.
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
EN ENO
SD62
SD63
SD64
SD65
SD66
SD67
SD78
SD79
200
15
200
99
5
255
83
0
SD62
SD63
SD64
SD65
SD66
SD78
SD77
SD79 0
0
0
0
0
0
0
0
·
·
(1)
Before execution After execution