TABLE OF CONTENTS
SR469 MANUAL
iv
6.2 PROTOCOL.......................................................................................................................................................................... 6-1
6.2.1 MODBUS RTU PROTOCOL..........................................................................................................................................................................6-1
6.2.2 DATA FRAME FORMAT AND DATA RATE..................................................................................................................................................6-1
6.2.3 DATA PACKET FORMAT ..............................................................................................................................................................................6-2
6.2.4 ERROR CHECKING ......................................................................................................................................................................................6-3
6.2.5 TIMING...........................................................................................................................................................................................................6-4
6.3 SUPPORTED MODBUS FUNCTIONS..................................................................................................................................6-4
6.3.1 SUPPORTED MODBUS FUNCTIONS..........................................................................................................................................................6-4
6.3.2 FUNCTION CODES 01 AND 02 - READ RELAY COIL AND DIGITAL INPUT STATUS..............................................................................6-5
6.3.3 FUNCTION CODES 03 AND 04 - READ SETPOINTS AND ACTUAL VALUES ..........................................................................................6-7
6.3.4 FUNCTION CODE 05 - EXECUTE OPERATION..........................................................................................................................................6-8
6.3.5 FUNCTION CODE 06 - STORE SINGLE SETPOINT ...................................................................................................................................6-9
6.3.6 FUNCTION CODE 07 - READ DEVICE STATUS .......................................................................................................................................6-10
6.3.7 FUNCTION CODE 08 - LOOPBACK TEST .................................................................................................................................................6-11
6.3.8 FUNCTION CODE 16 - STORE MULTIPLE SETPOINTS...........................................................................................................................6-12
6.3.9 FUNCTION CODE 16 - PERFORMING COMMANDS ................................................................................................................................6-13
6.4 ERROR RESPONSES........................................................................................................................................................ 6-14
6.4.1 ERROR RESPONSES.................................................................................................................................................................................6-14
6.5 MEMORY MAP................................................................................................................................................................... 6-15
6.5.1 MEMORY MAP INFORMATION ..................................................................................................................................................................6-15
6.5.2 USER DEFINABLE MEMORY MAP AREA .................................................................................................................................................6-15
6.5.3 EVENT RECORDER....................................................................................................................................................................................6-15
6.5.4 WAVEFORM CAPTURE..............................................................................................................................................................................6-15
7. TESTING...................................................................................................................................7-1
7.1 TEST SETUP........................................................................................................................................................................ 7-1
7.1.1 SECONDARY INJECTION TEST SETUP .....................................................................................................................................................7-1
7.2 HARDWARE FUNCTIONAL TESTING ................................................................................................................................ 7-2
7.2.1 PHASE CURRENT ACCURACY TEST.........................................................................................................................................................7-2
7.2.2 VOLTAGE INPUT ACCURACY TEST...........................................................................................................................................................7-2
7.2.3 GROUND (1A/5A) AND DIFFERENTIAL ACCURACY TEST .......................................................................................................................7-3
7.2.4 MULTILIN 50:0.025 GROUND ACCURACY TEST........................................................................................................................................7-4
7.2.5 RTD ACCURACY TEST.................................................................................................................................................................................7-4
7.2.6 DIGITAL INPUTS AND TRIP COIL SUPERVISION......................................................................................................................................7-6
7.2.7 ANALOG INPUTS AND OUTPUTS ...............................................................................................................................................................7-6
7.2.8 OUTPUT RELAYS..........................................................................................................................................................................................7-8
7.3 ADDITIONAL FUNCTIONAL TESTING................................................................................................................................7-9
7.3.1 OVERLOAD CURVE TEST............................................................................................................................................................................7-9
7.3.2 POWER MEASUREMENT TEST.................................................................................................................................................................7-10
7.3.3 UNBALANCE TEST .....................................................................................................................................................................................7-11
7.3.4 VOLTAGE PHASE REVERSAL TEST.........................................................................................................................................................7-12
7.3.5 SHORT CIRCUIT TEST ...............................................................................................................................................................................7-13
8. 469PC PROGRAM....................................................................................................................8-1
8.1 INSTALLATION/UPGRADE.................................................................................................................................................. 8-1
8.2 CONFIGURATION................................................................................................................................................................8-3
8.3 UPGRADING RELAY FIRMWARE ....................................................................................................................................... 8-4
8.4 CREATING A NEW SETPOINT FILE....................................................................................................................................8-5
8.5 EDITING A SETPOINT FILE................................................................................................................................................. 8-6
8.6 DOWNLOADING A SETPOINT FILE TO THE SR469 .......................................................................................................... 8-7
8.7 UPGRADING SETPOINT FILE TO NEW REVISION............................................................................................................8-8
8.8 PRINTING.............................................................................................................................................................................8-9
8.9 TRENDING......................................................................................................................................................................... 8-10
8.10 WAVEFORM CAPTURE................................................................................................................................................... 8-12
8.11 PHASORS ........................................................................................................................................................................ 8-14
8.12 EVENT RECORDING ....................................................................................................................................................... 8-15
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