GE Power Quality Meter Series Instruction Manual page 8

7. MODBUS
COMMUNICATIONS
8. DNP COMMUNICATIONS
9. COMMISSIONING
A. APPLICATION NOTES
iv
TABLE OF CONTENTS
7.1 OVERVIEW
7.1.1 MODBUS PROTOCOL .............................................................................. 7-1
7.1.2 ELECTRICAL INTERFACE ....................................................................... 7-1
7.1.3 DATA FORMAT & DATA RATE................................................................. 7-1
7.1.4 DATA PACKET FORMAT .......................................................................... 7-2
7.1.5 ERROR CHECKING .................................................................................. 7-2
7.1.6 CRC-16 ALGORITHM................................................................................ 7-3
7.1.7 TIMING ...................................................................................................... 7-3
7.2 MODBUS FUNCTIONS
7.2.1 PQM SUPPORTED MODBUS FUNCTIONS............................................. 7-4
7.2.2 FUNCTION CODES 03/04 - READ SETPOINTS/ACTUAL VALUES ....... 7-4
7.2.3 FUNCTION CODE 05 - EXECUTE OPERATION...................................... 7-5
7.2.4 FUNCTION CODE 05 - BROADCAST COMMAND.................................. 7-6
7.2.5 FUNCTION CODE 06 - STORE SINGLE SETPOINT .............................. 7-7
7.2.6 FUNCTION CODE 07 - READ DEVICE STATUS .................................... 7-8
7.2.7 FUNCTION CODE 08 - LOOPBACK TEST .............................................. 7-9
7.2.8 FUNCTION CODE 16 - STORE MULTIPLE SETPOINTS...................... 7-10
7.2.9 FUNCTION CODE 16 - PERFORMING COMMANDS ............................ 7-11
7.2.10 FUNCTION CODE 16 - BROADCAST COMMAND ................................ 7-12
7.2.11 ERROR RESPONSES............................................................................. 7-13
7.3 MODBUS MEMORY MAP
7.3.1 MEMORY MAP INFORMATION .............................................................. 7-14
7.3.2 USER-DEFINABLE MEMORY MAP ........................................................ 7-14
7.3.3 PQM MEMORY MAP ............................................................................... 7-15
7.3.4 MEMORY MAP DATA FORMATS ........................................................... 7-55
7.3.5 ANALOG OUTPUT PARAMETER RANGE ............................................. 7-63
8.1 DNP 3.0 PROTOCOL
8.1.1 DEVICE PROFILE DOCUMENT ............................................................... 8-1
8.1.2 IMPLEMENTATION TABLE....................................................................... 8-3
8.1.3 DEFAULT VARIATIONS ............................................................................ 8-4
8.1.4 INTERNAL INDICATION BITS .................................................................. 8-4
8.1.5 BINARY INPUT / BINARY INPUT CHANGE POINT LIST......................... 8-5
8.1.6 BINARY OUTPUT / CONTROL RELAY OUTPUT POINT LIST ................ 8-7
8.1.7 POINT LIST FOR ANALOG INPUT/OUTPUT CHANGE ........................... 8-9
8.1.8 POINT LIST FOR COUNTERS................................................................ 8-14
9.1 COMMISSIONING
A.1 PQM APPLICATION NOTES
A.1.1 EVENT RECORDER .................................................................................A-1
A.1.2 INTERFACING USING HYPERTERMINAL............................................... A-4
A.1.3 PHASORS IMPLEMENTATION ................................................................A-7
A.1.4 TRIGGERED TRACE MEMORY RESOLUTION .......................................A-9
A.1.5 PULSE OUTPUT APPLICATION............................................................. A-11
A.1.6 DATA LOGGER IMPLEMENTATION ...................................................... A-12
A.1.7 READING LONG INTEGERS FROM MEMORY MAP ............................ A-16
A.1.8 PULSE INPUT APPLICATION................................................................. A-18
A.1.9 PULSE TOTALIZER APPLICATION........................................................ A-19
PQM Power Quality Meter
GE Power Management