Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 110

FB details
o_bS_AntivalentOut is set to ON or OFF as below depending on the status of i_bS_ChannelNC and i_bS_ChannelNO.
No. i_bS_ChannelNC status
1 OFF
2 OFF
3 ON
4 ON
If the status of numbers 1 and 4 listed in the table above continues beyond i_dDiscrepancyTime, the safety FB detects an
error and the status becomes error.
State diagram
State transition of M+SF_ANTI_R
0>i_dDiscrepancyTime OR
i_dDiscrepancyTime>60000
Parameter
Error
C005H
1
0=<i_dDiscrepancyTime =<60000
2
Wait for NO
8004H
3
Note 1: 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
108
4.16 M+SF_ANTI_R
i_bActivate=OFF
0
1
Error 1
C001H
Error 2
C002H
1
i_dDiscrepancyTime i_dDiscrepancyTime
Over Over
i_bS_ChannelNO status
OFF
ON
OFF
ON
Idle
0000H
1
i_bActivate=ON
1
init
8001H
2
4
3
2
Wait for NC
8014H
1
3
2
Safety Output
enabled
8000H 1
o_bS_AntivalentOut output value
OFF
OFF
ON
OFF
o_bReady=OFF
o_bReady=ON
1
Error 3
C003H
2
1
From Active
Wait
8005H
o_bS_AntivalentOut= OFF
o_bS_AntivalentOut= ON