GE 889 Instruction Manual page 474

CONTROL
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Figure 4-145: Pushbutton "Tag" logic diagram
The pushbuttons, Tag, Block and Bypass Block are used for both breakers and switches
when selected in the SLD. Only one component at the time can be selected in the SLD.
Tagging, blocking, or bypassing block can be performed in Local Mode, and only when the
component (breaker or switch) is selected in the SLD. The applied action of tagging,
blocking or bypassing block is retained for this component after it's been deselected. To
change the status of the applied action, the component need be reselected.
The Local Mode control allows programming of separate pair of PBs for Open and Close
commands to breakers and for Open and Close commands to switches. If desired, one pair
of pushbuttons can be programmed for Open and Close commands to both breakers and
switches.
889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS