GE EPM6000 Instruction Manual page 127

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM6000
Appendix D.4.1 Object and Variation
EPM6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE
The following Objects and Variations are supported on EPM6000 meters:
• Binary Output Status ( Object 10, Variation 2) †
• Control Relay Output Block ( Object 12, Variation 1 )
• 32-Bit Binary Counter Without Flag ( Object 20, Variation 5 ) †
• 16-Bit Analog Input Without Flag ( Object 30, Variation 4 ) †
• Class 0 Data ( Object 60, Variation 1 ) †
• Internal Indications ( Object 80, Variation 1 )
† READ requests for Variation 0 will be honored with the above Variations.
Appendix D.4.1.1Binary Output Status ( Obj. 10, Var. 2 )
Binary Output Status supports the following functions:
Read ( Function 1 )
A READ request for Variation 0 will be responded to with Variation 2.
Binary Output Status is used to communicate the following data measured by EPM6000
meters:
Energy Reset State
Change to MODBUS RTU Protocol State
Energy Reset State ( Point 0 )
EPM6000 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 )
EPM6000 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.
Appendix D.4.1.2Control 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
APPLICATION LAYER
D–5