Omron NX-SL series, Instruction & Reference Manual

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4 Safety Function Blocks
NX-series Safety Control Unit Instructions Reference Manual (Z931)
4
SF
_T
woHand
ControlT
ypeII
 Error Detected
After the FB is activated, it detects buttons that are already set to TRUE as illegal input settings that
result in errors.
 Operation for Errors
• When an error occurs, the S_TwoHandOut output is set to FALSE and the safe state is main-
tained.
• When both buttons are released (i.e., set to FALSE), the error status is reset.

FB-specific Error Codes
 FB-specific State Codes (No Error)
Instruction Execution Errors
DiagCode
(hexadecimal)
DiagCode
(decimal)
Status name Status description and output results
C001 49153 Error B1 S_Button1 was TRUE when the FB was activated.
Ready = TRUE
Error = TRUE
S_TwoHandOut = FALSE
C002 49154 Error B2 S_Button2 was TRUE when the FB was activated.
Ready = TRUE
Error = TRUE
S_TwoHandOut = FALSE
C003 49155 Error B1&B2 S_Button1 and S_Button2 were TRUE when the FB was acti-
vated.
Ready = TRUE
Error = TRUE
S_TwoHandOut = FALSE
DiagCode (hexadecimal)
DiagCode
(decimal)
Status name Status description and output results
0000 0 Idle The FB is disabled (default).
Ready = FALSE
Error = FALSE
S_TwoHandOut = FALSE
8000 32768 Buttons Actuated Both buttons were operated correctly. The
safety-related output is active.
Ready = TRUE
Error = FALSE
S_TwoHandOut = TRUE
8001 32769 Init The FB is active but it is in the Init state.
Ready = TRUE
Error = FALSE
S_TwoHandOut = FALSE
8004 32772 Buttons Released Neither of the buttons is being operated.
Ready = TRUE
Error = FALSE
S_TwoHandOut = FALSE