Attributes . IEC 60947-5-1 || IEC 61508-1 functional safety standard || IEC 61508-2 functional safety standard || IEC 61508-3 functional safety standard || IEC 61508-4 functional safety standard || IEC 61508-5 functional safety standard || IEC 61508-6 functional safety standard || IEC 61508-7 functional safety standard || ISO 13849-1 functional safety standard || IEC 62061 functional safety standard . Names