Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 61

List of status codes (no error)
o_wDiagCode State name
(Hexadecimal)
0000H Idle
8005H ModeChanged
8000H ModeSelected
8004H ModeLocked
*1 Set only one signal to ON.
WARNING
Please do the above actions when the FB detects an error or is in an unexpected state. However, when the situation is still not corrected, please check the
following.
• A failure in safety devices and emergency stop devices
• Wiring and status of a safety remote I/O module and a safety programmable controller
• Programming logic, the memory allocation of safety devices, and the connections of safety FB variables
• Setting of i_bAutoSetMode
Description, output setting
The FB is not active. (initial state)
• o_bReady: OFF
• o_bS_Mode0Sel to o_bS_Mode7Sel: OFF
• o_bS_AnyModeSel: OFF
• o_bError: OFF
State after activation or when i_bS_ModeX has changed
(unless locked) or after Reset of an error state.
• o_bReady: ON
• o_bS_Mode0Sel to o_bS_Mode7Sel: OFF
• o_bS_AnyModeSel: OFF
• o_bError: OFF
Valid mode selection, but not yet locked.
• o_bReady: ON
• o_bS_Mode0Sel to o_bS_Mode7Sel:
• o_bS_AnyModeSel: ON
• o_bError: OFF
Valid mode selection is locked.
• o_bReady: ON
• o_bS_Mode0Sel to o_bS_Mode7Sel:
• o_bS_AnyModeSel: ON
• o_bError: OFF
Action
Initialize the FB by setting i_bActivate to ON.
Select a mode after setting i_bS_Unlock to
ON, and set i_bS_SetMode to ON.
Lock the selected mode by setting
i_bS_Unlock to OFF.
*1
To change the mode, set i_bS_Unlock to ON.
*1
4 SAFETY FB SPECIFICATIONS
4.9 M+SF_MODSEL_R
4
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