4-34 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
FRONT PANEL INTERFACE CHAPTER 4: INTERFACES
4
Figure 4-40: Annunciator alarm sequence in Self Reset mode
Latched mode is intended for transient signals such as trip, and it conforms to ISA-18.1-1979 (R2004) standard type M 6.
Figure 4-41: Annunciator alarm sequence in Latched mode
In Acknowledgeable mode, both Off to On and On to Off state changes in the configured operand cause the background to
flash; the window must be acknowledged/reset to cancel flashing. This mode conforms to ISA-18.1-1979 (R2004) standard
type R-6.
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