9 - 27
9 Troubleshooting
NX-series Safety Control Unit User’s Manual (Z930)
9-3 Checking for Errors with the Sysmac Studio
9
9-3-4 Error Descriptions
Event name SF_MutingPar_2Sensor Error Event code 74AA 0000 hex
Meaning An error was detected in execution of a safety function block.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Source details NX Unit Detection timing In DEBUG mode
(RUN) or RUN
mode
Error attributes Level Minor fault Recovery Implement the
correction.
Log category System
Effects User program Continues. Operation The Unit continues to operate.
System-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
Refer to information on the diagnostic
code that is given for attached infor-
mation 1 in the NX-series Safety Con-
trol Unit Instructions Reference
Manual (Cat. No. Z931).
Implement the correction for the rele-
vant cause of the diagnostic code that
is given for attached information 1.
Program operation considering the
corrections that are given on the left.
Attached
information
Attached information 1: Diagnostic code
Precautions/
Remarks
None
Event name SF_MutingSeq Error Event code 74AB 0000 hex
Meaning An error was detected in execution of a safety function block.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Source details NX Unit Detection timing In DEBUG mode
(RUN) or RUN
mode
Error attributes Level Minor fault Recovery Implement the
correction.
Log category System
Effects User program Continues. Operation The Unit continues to operate.
System-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
Refer to information on the diagnostic
code that is given for attached infor-
mation 1 in the NX-series Safety Con-
trol Unit Instructions Reference
Manual (Cat. No. Z931).
Implement the correction for the rele-
vant cause of the diagnostic code that
is given for attached information 1.
Program operation considering the
corrections that are given on the left.
Attached
information
Attached information 1: Diagnostic code
Precautions/
Remarks
None
Event name SF_OutControl Error Event code 74AC 0000 hex
Meaning An error was detected in execution of a safety function block.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Source details NX Unit Detection timing In DEBUG mode
(RUN) or RUN
mode
Error attributes Level Minor fault Recovery Implement the
correction.
Log category System
Effects User program Continues. Operation The Unit continues to operate.
System-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
Refer to information on the diagnostic
code that is given for attached infor-
mation 1 in the NX-series Safety Con-
trol Unit Instructions Reference
Manual (Cat. No. Z931).
Implement the correction for the rele-
vant cause of the diagnostic code that
is given for attached information 1.
Program operation considering the
corrections that are given on the left.
Attached
information
Attached information 1: Diagnostic code
Precautions/
Remarks
None