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4 Safety Function Blocks
4 - 34
NX-series Safety Control Unit Instructions Reference Manual (Z931)
Error Detected
The following conditions force a transition to an error state.
• When an undetected change to TRUE in the
Reset
input is detected in the Operation Error 2 or
Operation Error 4 state
• When the switch position is not valid
Operation for Errors
• If an error occurs, the
S_EnableSwitchOut
safety output changes to FALSE and the safe state is
maintained. As opposed to other FBs, the reset error state is maintained when
Reset
is FALSE,
including when
S_SafetyActive
is also FALSE.
• After the error is reset, the enable switch must be set to the initial position that was defined for the
process before the enable switch can set the
S_EnableSwitchOut
output to TRUE. If
S_AutoReset
is FALSE,
Reset
must be changed from FALSE to TRUE.
FB-specific Error Codes
Instruction Execution Errors
DiagCode (hexadecimal)
DiagCode
(decimal)
Status name
Status description and output results
C001
49153
Reset Error 1
When the Operation Error 2 state was entered, an
undetected change to TRUE in the
Reset
input was
detected.
Ready
= TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
C002
49154
Reset Error 2
When the Operation Error 4 state was entered, an
undetected change to TRUE in the
Reset
input was
detected.
Ready
= TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
C010
49168
Operation Error 1
The enable switch was not set in position 1 when
S_SafetyActive
was started.
Ready
= TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
C020
49184
Operation Error 2
The enable switch was set in position 1 after C010.
Ready
= TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
C030
49200
Operation Error 3
The enable switch was set in position 2 from posi-
tion 3.
Ready
= TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
C040
49216
Operation Error 4
The enable switch was not set in position 2 after
C030.
Ready = TRUE
S_EnableSwitchOut
= FALSE
Error
= TRUE
Summary of Contents for NX-SL series
Page 8: ...CONTENTS 6 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 28: ...Sections in this Manual 26 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 98: ...2 Standard Functions 2 64 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 104: ...2 Standard Functions 2 70 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 110: ...2 Standard Functions 2 76 NX series Safety Control Unit Instructions Reference Manual Z931 ...
Page 265: ...I 1 I NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
Page 268: ...I 4 NX series Safety Control Unit Instructions Reference Manual Z931 Index ...
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