Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference page 82

■ Output labels
No. Variable name
(12) o_bReady
(13) o_bS_AOPD_Out
(14) o_bS_MutingActive
(15) o_bError
(16) o_wDiagCode
WARNING
• Use safety data for connecting the variable whose data type is "Bit*" to input-output circuits.
• Safe input must be connected to i_bMutingSw_11/12/21/22 depending on the safety requirements. Input appropriate signals depending on the safety
requirements of the application.
• A short circuit in the muting sensor signals or a functional application error to supply these signals are not detected by this FB but interpreted as incorrect
muting sequence. However, this condition should not lead to unwanted muting. The user should take care to include this in his risk analysis.
• A safety program is executed as a fixed scan execution type program.
• A safety program is executed at a fixed cycle according to a set safety cycle time. The safety FB that monitors the time must meet the following requirements.
⋅ The timeout processing may be delayed by the safety cycle time by executing the safety program. Set the safety cycle time so the delay by the safety
cycle time does not pose a hazard.
⋅ If the program is executed exceeding the safety cycle processing time, the timeout may be delayed. Ensure that an abnormality does not occur during
operation.
4 SAFETY FB SPECIFICATIONS
80
4.12 M+SF_MUTES_R
Data type Default value
Bit OFF
Bit* OFF
Bit* OFF
Bit OFF
Word [signed] 0
Description
Status of whether the safety FB is activated or not.
For details, see the following.
Page 11 General Functions
Safety output, indicates status of the muted guard.
OFF: AOPD protection field interrupted and muting not active.
ON: AOPD protection field not interrupted or muting active.
Indicates status of muting process.
OFF: Muting not active
ON: Muting active
Error flag.
For details, see the following.
Page 11 General Functions
Diagnostic code.
For details, see the following.
Page 11 General Functions