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4 Safety Function Blocks
NX-series Safety Control Unit Instructions Reference Manual (Z931)
4
SF
_Guar
dMonitoring
SF_GuardMonitoring
This safety FB monitors a relevant safety guard and opens or closes the safety guard.
Instruction
Name
FB/FUN
Graphic expression
SF_GuardMonitori
ng
Safety Guard
Monitoring
FB
Variables
Input Variables
Variable
Data type
Valid range
Default
Description
Activate
BOOL
TRUE or FALSE
FALSE
Safety FB Common Input Variables
S_GuardSwitch1 SAFEBOOL TRUE or FALSE
FALSE
A variable. The input from guard switch 1.
FALSE: The guard is open.
TRUE: The guard is closed.
S_GuardSwitch2 SAFEBOOL TRUE or FALSE
FALSE
A variable. The input from guard switch 2.
FALSE: The guard is open.
TRUE: The guard is closed.
Discrepancy-
Time
TIME
Depends on data
type.
T#0ms
A constant. It sets the synchronization time to monitor
between
S_GuardSwitch1
and
S_GuardSwitch2.
S_StartReset
SAFEBOOL TRUE or FALSE
FALSE
Safety FB Common Input Variables
S_AutoReset
SAFEBOOL TRUE or FALSE
FALSE
Safety FB Common Input Variables
Reset
BOOL
TRUE or FALSE
FALSE
Safety FB Common Input Variables
Output Variables
Variable
Data type
Valid range
Default
Description
Ready
BOOL
TRUE or FALSE
FALSE
Refer to
Safety FB Common Output Variables
4-4.
S_GuardMonitori
ng
SAFEBOOL TRUE or FALSE
FALSE
Gives the guard status.
FALSE: Opens the guard.
TRUE: Closes the guard.
Error
BOOL
TRUE or FALSE
FALSE
Refer to
Safety FB Common Output Variables
4-4.
DiagCode
WORD
Depends on state
code.
16#0000
Refer to
Safety FB Common Output Variables
4-4.
SF_GuardMonitoring
Activate
S_GuardSwitch1
S_GuardSwitch2
BOOL
SAFEBOOL
BOOL
WORD
Ready
S_GuardMonitoring
Error
DiagCode
BOOL
SAFEBOOL
SAFEBOOL
TIME
DiscrepancyTime
SAFEBOOL
S_StartReset
SAFEBOOL
S_AutoReset
BOOL
Reset
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 ...
Page 269: ......