Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 74

Muting conditions (backward direction)
No. State transition
11 8000H→8122H
8000H→8422H
12 8122H→8121H
8422H→8121H
13 8000H→8121H
14 8121H→8112H
44 8121H→8114H
8121H→8414H
45 8114H→8112H
8414H→8112H
15 8112H→8000H
4 SAFETY FB SPECIFICATIONS
72
4.11 M+SF_MUTEP_R
Condition/action
MS_21 is the first entry switch actuated:
Start timers i_dMaxMutingTime and i_dDiscTime21_22.
i_bMutingEnable=ON AND MS_21=OFF→ON AND MS_22=OFF AND MS_11=OFF AND MS_12=OFF
MS_22 is the first entry switch actuated:
Start timers i_dMaxMutingTime and i_dDiscTime21_22.
i_bMutingEnable=ON AND MS_21=OFF AND MS_22=OFF→ON AND MS_11=OFF AND MS_12=OFF
MS_22 is the second entry switch actuated:
Stop timer i_dDiscTime21_22.
i_bMutingEnable=ON AND MS_21=ON AND MS_22=OFF→ON AND MS_11=OFF AND MS_12=OFF
MS_21 is the second entry switch actuated:
Stop timer i_dDiscTime21_22.
i_bMutingEnable=ON AND MS_21=OFF→ON AND MS_22=ON AND MS_11=OFF AND MS_12=OFF
Both entry switches actuated in the same cycle:
Start timer i_dMaxMutingTime.
i_bMutingEnable=ON AND MS_21=OFF→ON AND MS_22=OFF→ON AND MS_11=OFF AND MS_12=OFF
All switches actuated:
MS_21=ON AND MS_22=ON AND MS_11=ON AND MS_12=ON
MS_11 is the first exit switch actuated:
Start timer i_dDiscTime11_12.
MS_21=ON AND MS_22=ON AND MS_11=OFF→ON AND MS_12=OFF
MS_12 is the first exit switch actuated:
Start timer i_dDiscTime11_12.
MS_21=ON AND MS_22=ON AND MS_11=OFF AND MS_12=OFF→ON
MS_12 is the second exit switch actuated:
Stop timer i_dDiscTime11_12.
MS_21=ON AND MS_22=ON AND MS_11=ON AND MS_12=OFF→ON
MS_11 is the second exit switch actuated:
Stop timer i_dDiscTime11_12.
MS_21=ON AND MS_22=ON AND MS_11=OFF→ON AND MS_12=ON
One of the exit switches released:
Stop timer i_dMaxMutingTime.
MS_21=OFF AND MS_22=OFF AND (MS_11=ON→OFF OR MS_12=ON→OFF)