Chapter 4 Safety Fb Specifications; M+Sf_2Hand2_R - Mitsubishi Electric MELSEC iQ-R Series Safety Function Block Reference

4
SAFETY FB SPECIFICATIONS
4.1

M+SF_2HAND2_R

Overview
Item Description
Two-hand switch Type 
Function name
This FB provides the two-hand control functionality (see ISO13851, Type ).
Functional overview
Symbol
(1) B: i_bActivate
(2) B: i_bS_Button1
(3) B: i_bS_Button2
Labels
■ Input labels
No. Variable name Data type
(1) i_bActivate Bit
(2) i_bS_Button1 Bit*
(3) i_bS_Button2 Bit*
■ Output labels
No. Variable name Data type
(4) o_bReady Bit
(5) o_bS_TwoHand_Out Bit*
(6) o_bError Bit
(7) o_wDiagCode Word [signed]
WARNING
Use safety data for connecting the variable whose data type is "Bit*" to input-output circuits.
FB details
This FB provides the two-hand control functionality according to ISO13851, Section 4 Type . If i_bS_Button1 and
i_bS_Button2 are set to ON in correct sequence, then o_bS_TwoHand_Out output will also be set to ON. The FB also controls
the release of both buttons before setting output o_bS_TwoHand_Out again to ON.
M+SF_2HAND2_R
o_bReady: B
o_bS_TwoHand_Out: 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 Input of button 1 (for category 3 or 4: two antivalent contacts)
OFF: Button 1 released.
ON: Button 1 actuated.
OFF Input of button 2 (for category 3 or 4: two antivalent contacts)
OFF: Button 2 released.
ON: Button 2 actuated.
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: No correct two-hand operation.
ON: i_bS_Button1 and i_bS_Button2 inputs are ON and no error occurred. Correct
two-hand operation.
OFF Error flag.
For details, see the following.
Page 11 General Functions
0 Diagnostic code.
For details, see the following.
Page 11 General Functions
(4)
(5)
(6)
(7)
4 SAFETY FB SPECIFICATIONS
4.1 M+SF_2HAND2_R
4
15