Appendix 1 Special Relay List - Mitsubishi Electric MELSEC-Q Series User Manual

APPENDICES
(1) Diagnostic Information
Number Name
OFF: No error
SM0 Diagnostic errors
ON : Error
OFF: No self-diagnosis
Self-diagnostic
SM1 errors
error
ON : Self-diagnosis
OFF: No error common
Error common information
SM5
information ON : Error common
information
OFF: No error common
Error individual information
SM16
information ON : Error common
information
SM50 Error reset OFF ON : Error reset
OFF: Normal
SM51 Battery low latch
ON : Battery low
OFF: Normal
SM52 Battery low
ON : Battery low
OFF: AC/DC DOWN not
AC/DC DOWN detected
SM53
detection ON : AC/DC DOWN
detected
OFF: Normal
SM56 Operation Errors
ON : Operation error
Blown fuse OFF: Normal
SM60
detection ON : Module with blown fuse
I/O module OFF: Normal
SM61
verification error ON : Error
Annunciator OFF: Not detected
SM62
detection ON : Detected
Serial OFF: Serial communication
communication function is not used.
SM100
function using ON : Serial communication
flag function is used.
Communication OFF: GX Developer
SM101 protocol status ON : MC protocol
flag communication device
OFF: Normal
SM110 Protocol error
ON : Abnormal
Communication OFF: Normal
SM111
ON : Abnormal
status
Error information
SM112 ON : Cleared
clear
OFF: Normal
SM113 Overrun error
ON : Abnormal
OFF: Normal
SM114 Parity error
ON : Abnormal
OFF: Normal
SM115 Framing error
ON : Abnormal
App - 2
Special Relay List
Meaning
• ON if diagnosis results show error occurrence
(Includes external diagnosis)
• Stays ON subsequently even if normal operations restored
• Comes ON when an error occurs as a result of self-diagnosis.
• Stays ON subsequently even if normal operations restored
• When SM0 is ON, ON if there is error common information
• When SM0 is ON, ON if there is error individual information
• Conducts error reset operation
• ON if battery voltage at CPU drops below rated value.
Stays ON subsequently even after normal operation is restored
• Same as SM51, but goes OFF subsequently when battery voltage
returns to normal.
• Comes ON it a momentary power interruption of less than 20ms
occurred during use of the AC power supply module, and reset by
turning the power OFF, then ON.
• Comes ON if a momentary power interruption of less than 10ms
occurred during use of the DC power supply module, and reset by
turning power OFF, then ON.
• ON when operation error is generated
• Stays ON subsequently even if normal operations restored
• Comes ON even if there is only one output module with a blown
fuse, and remains ON even after return to normal
• Blown fuse state is checked even for remote I/O station output
modules.
• Comes ON if there is a discrepancy between the actual I/O modules
and the registered information when the power is turned on
• Goes ON if even one annunciator F goes ON.
• Stores whether the serial communication function in the serial
communication setting parameter is used or not.
• Stores whether the device that is communicating via the RS-232
interface is GX Developer or MC protocol communication device.
• Turns ON when an abnormal protocol was used to make
communication in the serial communication function.
• Remains ON if the protocol is restored to normal thereafter.
• Turns ON when the mode used to make communication was
different from the setting in the serial communication function.
• Remains ON if the mode is restored to normal thereafter.
• Turns ON when the error codes stored in SM110, SM111, SD110
and SD111 are cleared. (Activated when turned from OFF to ON)
• Turns ON when an overrun error occurred in the serial
communication error.
• Turns ON when a parity error occurred in the serial communication
error.
• Turns ON when a framing error occurred in the serial
communication error.
Explanation
MELSEC-Q
APP
Set by (When Set)
S (Error)
S (Error)
S (Error)
S (Error)
U
S (Error)
S (Error)
S (Error)
S (Error)
S (Error)
S (Error)
S (Instruction execution)
S (Power-on or reset)
S (RS232 communication)
S (Error)
S (Error)
U
S (Error)
S (Error)
S (Error)
App - 2