Satec PM174 User Manual

3
Table of Contents
1 GENERAL ..........................................................................................................8
2 MODBUS PROTOCOL IMPLEMENTATION......................................................9
2.1 Transmission Modes......................................................................................... 9
2.2 Address Field ................................................................................................... 9
2.3 Function Field .................................................................................................. 9
2.4 Exception Responses........................................................................................ 9
2.5 Modbus Register Addresses ............................................................................. 9
2.6 Data Formats ................................................................................................. 10
2.6.1 16-BIT SCALED INTEGER FORMAT ..............................................................................10
2.6.2 32-BIT LONG INTEGER FORMAT .................................................................................11
2.6.3 32-BIT MODULO-10000 FORMAT..............................................................................12
2.7 User Assignable Registers.............................................................................. 12
2.8 Password Protection ...................................................................................... 12
2.9 Data Recording and File Transfers ................................................................. 13
2.9.1 LOG FILE ORGANIZATION ........................................................................................13
Multi-section Files...............................................................................................13
Data Log Files ....................................................................................................13
Profile Data Log File ............................................................................................14
Waveform Log Files.............................................................................................14
2.9.2 FILE TRANSFERS ..................................................................................................14
Common File Transfer .........................................................................................14
Reading Multi-section Data Log Files......................................................................15
Reading Multi-section Waveform Files....................................................................16
Reading Real-time Waveforms..............................................................................16
2.10 TCP Notification Client ................................................................................... 16
3 MODBUS REGISTER MAP..............................................................................19
3.1 Modbus Setup Registers................................................................................. 19
Modbus Assignable Registers................................................................................19
Assignable Registers Map.....................................................................................19
Modbus Conversion Scales ...................................................................................19
Device Data Scales .............................................................................................19
3.2 16-bit Scaled Analog Registers and Energy Counters - Basic Register Set ..... 20
3.3 16-bit Scaled Analog Registers, Binary Registers and Counters ..................... 22
None.................................................................................................................22
Setpoint Status (bitmap) .....................................................................................22
Special Inputs....................................................................................................22
Event Flags (bitmap)...........................................................................................22
Digital Inputs (bitmap)........................................................................................22
Relay Outputs (bitmap) .......................................................................................22
Counters ........................................................................................................... 22
1/2-Cycle Values ................................................................................................22
1-Cycle Phase Values ..........................................................................................22
1-Cycle Total Values............................................................................................23
1-Cycle Auxiliary Values ......................................................................................23
Phasor ..............................................................................................................23
1-Second Phase Values........................................................................................24
1-Second Total Values.........................................................................................25
1-Second Auxiliary Values....................................................................................25
Present Harmonic Demands..................................................................................25
Present Volt, Ampere and Power Demands .............................................................25
Total Energies....................................................................................................26
Phase Energies...................................................................................................26
Symmetrical Components ....................................................................................27

Satec PM174 Specifications

General

Brand	Satec
Model	PM174
Category	Measuring Instruments
Language	English