M+Sf_Anti_R - Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference

4.16

M+SF_ANTI_R

Overview
Item Description
Function name Dual input (NO+NC)
Functional overview This FB converts two antivalent bit inputs (NO/NC pair) to one bit output with discrepancy time monitoring. The FB output shows the
result of the evaluation of both channels.
Symbol
(1) B: i_bActivate
(2) B: i_bS_ChannelNC
(3) B: i_bS_ChannelNO
(4) D: i_dDiscrepancyTime
Labels
■ Input labels
No. Variable name Data type
(1) i_bActivate Bit
(2) i_bS_ChannelNC Bit*
(3) i_bS_ChannelNO Bit*
(4) i_dDiscrepancyTime Double word
[signed]
■ Output labels
No. Variable name Data type
(5) o_bReady Bit
(6) o_bS_AntivalentOut Bit*
(7) o_bError Bit
(8) o_wDiagCode Word [signed]
WARNING
• Use safety data for connecting the variable whose data type is "Bit*" to input-output circuits.
• 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.
M+SF_ANTI_R
o_bReady: B
o_bS_AntivalentOut: B
o_bError: B
o_wDiagCode: W
Default value Description
OFF Activation of the safety FB.
For details, see the following.
Page 11 General Functions
OFF Safety input signal (NC contact)
OFF: NC contact open
ON: NC contact closed
OFF Safety input signal (NO contact)
OFF: NO contact open
ON: NO contact closed
0 Configures the monitoring time for consistent status of i_bS_ChannelNC and
i_bS_ChannelNO (increments of 10ms).
Range: Fixed values from 0 to 60000 (0 to 600000ms = 10min)
Default value Description
OFF Status of whether the safety FB is activated or not.
For details, see the following.
Page 11 General Functions
OFF Safety output signal.
OFF: Status other than i_bS_ChannelNC=ON or i_bS_ChannelNO=OFF. Or,
i_bS_ChannelNC has been set to ON and i_bS_ChannelNO has been set to
OFF, but the time is out of the monitoring time of i_dDiscrepancyTime.
ON: i_bS_ChannelNC has been set to ON and i_bS_ChannelNO has been set to
OFF within the monitoring time of i_dDiscrepancyTime.
OFF Error flag.
For details, see the following.
Page 11 General Functions
0 Diagnostic code.
For details, see the following.
Page 11 General Functions
(5)
(6)
(7)
(8)
4 SAFETY FB SPECIFICATIONS
4.16 M+SF_ANTI_R
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