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Energy Reset State
Change to MODBUS RTU Protocol State
Energy Reset State ( Point 0 )
Shark meters accumulate power generated or consumed over time as Hour Readings, which
measure positive VA Hours and positive and negative W Hours and VAR Hours. These readings
may be reset usinga Control Relay Output Block object ( Obj. 12 ). This Binary Output Status
point reports whether the Energy Readings are in the process of being reset, or if they are
accumulating. Normally, readings are being accumulated and the state of this point is read as
'0'. If the readings are in the process of being reset, the state of this point is read as '1'.
Change to Modbus RTU Protocol State ( Point 1 )
Shark meters are capable of changing from DNP Protocol to Modbus RTU Protocol. This
enables the user to update the Device Profile of the meter. This does not change the Protocol
setting. A meter reset brings you back to DNP. Status reading of "1" equals Open, or
de-energized. A reading of "0" equals Closed, or energized.
D.4.1.2: Control Relay Output Block ( Obj. 12, Var. 1 )
Control Relay Output Block supports the following functions:
Direct Operate ( Function 5 )
Direct Operate - No Acknowledgment ( Function 6 )
Control Relay Output Blocks are used for the following purposes:
Energy Reset
Change to MODBUS RTU Protocol
Energy Reset ( Point 0 )
Shark meters accumulate power generated or consumed over time as Hour Readings, which
measure positive VA Hours and positive and negative W Hours and VAR Hours. These readings
may be reset using Point 0.
Use of the DIRECT OPERATE ( Function 5 ) function will operate only with the settings of
Pulsed ON ( Code = 1 of Control Code Field ) once ( Count = 0x01 ) for ON 1 millisecond and
OFF 0 milliseconds.
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Electro Industries/GaugeTech
Doc # E145701
D-4
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