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4 Safety Function Blocks
NX-series Safety Control Unit Instructions Reference Manual (Z931)
4
Gener
al R
ules for
S
a
fety F
unction
B
locks
S_StartReset
SAFE-
BOOL
TRUE or
FALSE
FALSE
Controls automatic and manual resetting at startup
(i.e., when program execution is started).
You can input a variable or a constant.
FALSE (default): Perform resetting manually when
the Safety CPU Unit is started.
TRUE: Resetting is performed automatically when the
Safety CPU Unit is started.
Use automatic resetting only when you can verify that
no hazard of any sort will result from automatically
resetting the Safety CPU Unit.
S_AutoReset
SAFE-
BOOL
TRUE or
FALSE
FALSE
Controls automatic and manual resetting for the oper-
ation of an emergency stop button.
You can input a variable or a constant.
FALSE (default): Perform resetting manually when
the emergency stop button is released.
TRUE: Resetting is performed automatically when the
emergency stop button is released.
Use automatic resetting only when you can verify that
no hazard of any sort will result from automatically
resetting the Safety CPU Unit.
Reset
BOOL
TRUE or
FALSE
FALSE
The reset input.
Input a variable.
This parameter is used for different purposes for dif-
ferent FBs.
• You can use it to reset the function block status and
release the relationship between the error and code
that is returned in
DiagCode
after the cause of the
error is removed.
• You can use it for a manual reset with an operator
restart interlock. The reset processing must be
designed to reset the FB.
• You can use it for other FB-specific resets.
Resetting is effective only when the signal changes
from FALSE to TRUE. Resetting is not performed
unless the change from FALSE to TRUE is detected.
Some FBs detect this as an instruction execution
error. This is described in
Instruction Execution Errors
under
Function
for the relevant FB. You must connect
a SAFEBOOL variable (not a BOOL variable)
depending on safety requirements.
Input param-
eter name
Data type
Valid range
Default
Description
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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