Debugging And Failure Diagnostic Instructions; Resetting The Error Display And The Annunciator Display - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

7.7

Debugging and Failure Diagnostic Instructions

Resetting the error display and the annunciator display

LEDR
RnPCPU
RnCPU RnENCPU
(Process)
This instruction resets the self-diagnostic error (continuation error) display and the annunciator display of the CPU module.
Ladder
FBD/LD
EN ENO
■Execution condition
Instruction
LEDR
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 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.
• When the annunciator (F) is on, the CPU module operates as follows:
• The USER LED turns off.
• The values in SD62, SD63, and SD64 to SD79 are all cleared to 0.
Before execution
SD62 200
SD63
15
SD64
200
SD65
99
SD66 5
SD67 255
·
SD78 83
SD79 0
(1) All data are cleared.
Operation error
There is no operation error.
7 APPLICATION INSTRUCTIONS
628
7.7 Debugging and Failure Diagnostic Instructions
RnPCPU RnSFCPU RnSFCPU
(Redundant) (Standard) (Safety)
Execution condition
After execution
SD62 0
SD63
0
SD64
0
SD65
0
SD66 0
(1)
·
0
SD77
0
SD78
SD79 0
ST
ENO:=LEDR(EN);