Functions
6-1757SJ63 Manual
C53000-G1140-C120-1
6.20.1 Types of Commands
Two (2) types of commands can be processed within the device:
− Control commands
− Internal / pseudo commands
Control Commands Control commands operate (OPEN/CLOSE) binary outputs. Examples are:
− Commands (e.g. operation of circuit breakers, etc.)
− Step Commands (e.g. raising and lowering transformer LTCs)
− Set-point Commands with configurable time settings (Petersen coils)
Internal / pseudo
Commands
These commands do not directly operate binary outputs. They serve to initiate internal
functions, simulate changes of state, or to acknowledge changes of state.
− Marking/Tagging commands are used to manually overwrite or set status functions
normally controlled by binary inputs.
− Additionally, Tagging commands are issued to establish internal settings, such as
switching authority (remote vs. local), parameter set changeover, data transmission
block to the SCADA interface, and measured value set-points.
− Acknowledgment and resetting commands for setting and resetting internal buffers.
− Status Information commands:
− Controlling activation of binary input status
− Binary Output Blocking
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