Table Of Contents - Satec EM720 Reference Manual

Table of Contents

1 GENERAL .............................................................................................. 9
2 MODBUS PROTOCOL IMPLEMENTATION ............................................ 10
2.1 Transmission Modes..............................................................................................10
2.2 Address Field.........................................................................................................10
2.3 Function Field ........................................................................................................10
2.4 Exception Responses.............................................................................................10
2.5 Modbus Register Addresses ..................................................................................10
2.6 Data Formats.........................................................................................................11
2.6.1 16-bit Scaled Integer Format ............................................................................. 11
2.6.2 32-bit Long Integer Format................................................................................ 12
2.6.3 32-bit Modulo-10000 Format.............................................................................. 13
2.7 User Assignable Registers.....................................................................................13
2.8 Password Protection .............................................................................................14
2.9 Data Recording and File Transfers ........................................................................14
2.9.1 Log File Organization ........................................................................................ 14
2.9.2 File Transfers................................................................................................... 15
2.10 TCP Notification Client...........................................................................................18
3 MODBUS REGISTER MAP .................................................................... 20
3.1 Modbus Setup Registers........................................................................................20
Modbus Assignable Registers ................................................................................ 20
Assignable Registers Map ..................................................................................... 20
Modbus Conversion Scales ................................................................................... 20
Device Data Scales ............................................................................................. 20
3.2 16-bit Scaled Analog Registers and Energy Counters - Basic Register Set ...........21
3.3 16-bit Scaled Analog Registers, Binary Registers and Counters ...........................23
None................................................................................................................. 23
Setpoint Status .................................................................................................. 23
Special Inputs .................................................................................................... 23
Event Flags ........................................................................................................ 23
Digital Inputs ..................................................................................................... 23
Relay Outputs .................................................................................................... 23
Counters ........................................................................................................... 23
1/2-Cycle Values ................................................................................................ 23
1-Cycle Phase Values .......................................................................................... 24
1-Cycle Low Phase Values .................................................................................... 24
1-Cycle High Phase Values ................................................................................... 25
1-Cycle Total Values............................................................................................ 25
1-Cycle Auxiliary Values....................................................................................... 25
Phasor .............................................................................................................. 26
1-Second Phase Values........................................................................................ 26
1-Second Low Phase Values ................................................................................. 27
3-Second Powers ................................................................................................ 27
1-Second High Phase Values ................................................................................ 28
1-Second Total Values ......................................................................................... 28
1-Second Auxiliary Values .................................................................................... 28
Present Harmonic Demands ................................................................................. 29
Present Demands................................................................................................ 29
Instrumentation Total Energies ............................................................................. 30
Symmetrical Components .................................................................................... 30
V1/V12 Harmonic Distortion ................................................................................. 31
V2/V23 Harmonic Distortion ................................................................................. 31
V3/V31 Harmonic Distortion ................................................................................. 31
I1 Harmonic Distortion ........................................................................................ 31
I2 Harmonic Distortion ........................................................................................ 31
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