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4 489 Generator Management Relay GE Multilin
TABLE OF CONTENTS
6.1.2 Modbus RTU Description....................................................................................6-1
6.1.3 Data Frame Format and Data Rate ....................................................................6-1
6.1.4 Data Packet Format............................................................................................6-1
6.1.5 CRC-16 Algorithm...............................................................................................6-2
6.1.6 Timing.................................................................................................................6-2
6.2 MODBUS FUNCTIONS
6.2.1 Supported Functions...........................................................................................6-3
6.2.2 Function Codes 03/04: Read Setpoints / Actual Values.....................................6-3
6.2.3 Function Code 05: Execute Operation................................................................6-4
6.2.4 Function Code 06: Store Single Setpoint............................................................6-4
6.2.5 Function Code 07: Read Device Status..............................................................6-5
6.2.6 Function Code 08: Loopback Test......................................................................6-5
6.2.7 Function Code 16: Store Multiple Setpoints .......................................................6-6
6.2.8 Function Code 16: Performing Commands ........................................................6-7
6.2.9 Error Responses.................................................................................................6-7
6.3 MODBUS MEMORY MAP
6.3.1 Memory Map Information....................................................................................6-8
6.3.2 User-Definable Memory Map Area .....................................................................6-8
6.3.3 Event Recorder...................................................................................................6-8
6.3.4 Waveform Capture..............................................................................................6-9
6.3.5 Dual Setpoints ....................................................................................................6-9
6.3.6 Passcode Operation ...........................................................................................6-9
6.3.7 489 Memory Map..............................................................................................6-10
6.3.8 Memory Map Data Formats..............................................................................6-34
6.4 DNP PROTOCOL
6.4.1 Device Profile Document ..................................................................................6-39
6.4.2 Implementation Table .......................................................................................6-41
6.4.3 Default Variations .............................................................................................6-42
6.5 DNP POINT LISTS
6.5.1 Binary Input / Binary Input Change (Objects 01/02) .........................................6-43
6.5.2 Binary / Control Relay Output Block (Objects 10/12)........................................6-45
6.5.3 Binary / Frozen Counter (Objects 20/21)..........................................................6-46
6.5.4 Analog Input / Input Change (Objects 30/32) ...................................................6-47
7. TESTING 7.1 TEST SETUP
7.1.1 Description..........................................................................................................7-1
7.1.2 Secondary Current Injection Test Setup.............................................................7-2
7.2 HARDWARE FUNCTIONAL TESTS
7.2.1 Output Current Accuracy....................................................................................7-3
7.2.2 Phase Voltage Input Accuracy............................................................................7-3
7.2.3 Ground (1 A), Neutral, and Differential Current Accuracy...................................7-4
7.2.4 Neutral Voltage (Fundamental) Accuracy...........................................................7-4
7.2.5 Negative Sequence Current Accuracy................................................................7-5
7.2.6 RTD Accuracy.....................................................................................................7-6
7.2.7 Digital Inputs and Trip Coil Supervision..............................................................7-7
7.2.8 Analog Inputs and Outputs .................................................................................7-7
7.2.9 Output Relays.....................................................................................................7-8
7.3 ADDITIONAL FUNCTIONAL TESTS
7.3.1 Overload Curve Accuracy...................................................................................7-9
7.3.2 Power Measurement Test.................................................................................7-10
7.3.3 Reactive Power Accuracy.................................................................................7-11
7.3.4 Voltage Phase Reversal Accuracy ...................................................................7-12
7.3.5 Injection Test Setup #2.....................................................................................7-12
7.3.6 GE Multilin HGF Ground Accuracy...................................................................7-13
7.3.7 Neutral Voltage (3rd Harmonic) Accuracy ........................................................7-13
7.3.8 Phase Differential Trip Accuracy ......................................................................7-14
7.3.9 Injection Test Setup #3.....................................................................................7-15
7.3.10 Voltage Restrained Overcurrent Accuracy .......................................................7-16