Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 65

Muting conditions
No. State transition
1 8000H→8011H
2 8000H→8311H
3 8011H→8012H
4 8311H→8012H
5 8000H→8012H
6 8012H→8000H
Wrong muting sequences
Status Wrong muting sequences
8000H MS_11=OFF→ON AND MS_12=ON AND MS_12=OFF→ON not yet
MS_12=OFF→ON AND MS_11=ON AND MS_11=OFF→ON not yet
(MS_11=ON AND MS_11=OFF→ON not yet) AND ( MS_12=ON AND MS_12=OFF→ON not yet)
i_bMutingEnable=OFF AND MS_11=OFF→ON
i_bMutingEnable=OFF AND MS_12=OFF→ON
8011H i_bMutingEnable=OFF OR MS_11=OFF
8311H i_bMutingEnable=OFF OR MS_12=OFF
8012H None.
Condition/action
MS_11 is the first entry switch actuated:
Start timer i_dDiscTimeEntry and i_dMaxMutingTime.
i_bMutingEnable=ON AND MS_11=OFF→ON AND MS_12=OFF
MS_12 is the first entry switch actuated:
Start timer i_dDiscTimeEntry and i_dMaxMutingTime.
i_bMutingEnable=ON AND MS_11=OFF AND MS_12=OFF→ON
MS_12 is the second entry switch actuated:
Stop timer i_dDiscTimeEntry.
i_bMutingEnable=ON AND MS_11=ON AND MS_12=OFF→ON
MS_11 is the second entry switch actuated:
Stop timer i_dDiscTimeEntry.
i_bMutingEnable=ON AND MS_11=OFF→ON AND MS_12=ON
Both entry switches actuated in same cycle:
Start timer i_dMaxMutingTime.
i_bMutingEnable=ON AND MS_11=OFF→ON AND MS_12=OFF→ON
Both switches released in same cycle or MS_11 and MS_12 released consecutively:
Stop timer i_dMaxMutingTime.
MS_11=OFF OR MS_12=OFF
4 SAFETY FB SPECIFICATIONS
4.10 M+SF_MUTE2_R
4
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