Common Specifications - Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference

2.2

Common Specifications

This section describes the common specifications to each safety FB. The following table lists the general input/output
specifications of the safety FBs. Variables other than i_bS_In and o_bS_Out are all used under the same names, data types,
default values, specifications, and functions for the safety FB use. For details on each name, data type, default value,
specification, and function of the safety input-output variables other than those described in the figure below, see the
description of individual safety FB.
M+SF_¨¨_R
(1) B: i_bActivate
(2) B: i_bS_In
(3) B: i_bS_StartReset
(4) B: i_bS_AutoReset
(5) B: i_bReset
WARNING
Use safety data for connecting the variable whose data type is "bit*" to input-output circuits.
Labels
■ Input labels
No. Name Data type
(1) i_bActivate Bit

(2) i_bS_In
(3) i_bS_StartReset Bit*
(4) i_bS_AutoReset Bit*
(5) i_bReset Bit
o_bReady: B (6)
o_bS_Out: B (7)
o_bError: B (8)
o_wDiagCode: W (9)
Default value Description and variable value
OFF Activation of the safety FB. Default value is OFF.
OFF: All output variables are set to the default values.
ON: The safety FB is active.
For details, see the following.
Page 11 Whether safety FBs are active or not

Safety input signals to the safety FB.
For details on each name, data type, default value, specification, and function, see the
individual safety FB.
OFF Selection of a reset method for the activated (first time) safety FB.
OFF (= default value): Manual reset when the safety FB is activated.
ON: Automatic reset when the safety FB is activated.
For details on the function, see the following.
Page 11 Reset selection
OFF Selection of a reset method for an input signal (i_bS_In) reset to ON.
OFF (= default value): Manual reset when an emergency stop button is released.
ON: Automatic reset when an emergency stop button is released.
For details on the function, see the following.
Page 11 Reset selection
OFF Reset input. (This function is only active on a signal change from OFF to ON. This input
can be used for different purposes.)
• Reset of the error that occurred in the safety FB.
• Manual reset in setting i_bS_StartReset and i_bS_AutoReset to OFF.
• Additional safety FB-specific reset functions.
For details on the function, see the following.
Page 11 Securing of input signal Reset
2 GENERAL SPECIFICATIONS
2.2 Common Specifications
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