Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 52

State diagram
State transition of M+SF_GMON_R
Wait for
GuardSwitch 2
8004H
2
i_bS_AutoReset=OFF
Wait for Reset
8003H
1
3
i_bReset
=OFF
Note: The transition from any state to the Idle state due to i_bActivate=OFF is not shown. However these transitions have the highest priority (0).
4 SAFETY FB SPECIFICATIONS
50
4.8 M+SF_GMON_R
i_bActivate=OFF
0
i_bS_GuardSwitch1=OFF
OR
i_bS_GuardSwitch2=OFF
i_bS_GuardSwitch1=ON
AND
i_bS_GuardSwitch2=OFF
2
i_bS_GuardSwitch1=OFF
AND
i_bS_GuardSwitch2=OFF
1
3
Discrepancy
Time Error
C011H/
C012H
i_bReset=ON AND
(R_TRIG i_bReset)=OFF
1
Reset Error
C001H
i_bS_AutoReset
=ON
(R_TRIG at i_bReset)=ON
Idle
0000H
1
i_bActivate=ON
0>i_dDiscrepancyTime OR
i_dDiscrepancyTime > 60000
1
Init
3
0 =<i_dDiscrepancyTime =< 60000
8001H
AND (R_TRIG at i_bReset)=ON
4
2
Open Guard
Request
8002H
1
i_bS_GuardSwitch1=OFF
AND
i_bS_GuardSwitch2=OFF
Guard
Opened
1 2
8012H
3
i_bS_GuardSwitch1=ON
1
AND
i_bS_GuardSwitch2=ON
GuardClosed
8005H
2 1
3
1
Normal
8000H
o_bReady=OFF
o_bReady=ON
Parameter
Error
C005H
1
2
Wait for
GuardSwitch 1
8014H
1
3
o_bS_GuardMon = OFF
o_bS_GuardMon = ON