TERIDIAN Semiconductor 71M6515H User Manual

71M6515H Demo Board User’s Manual

71M6515H Demo Board

USER’S MANUAL

12/5/2005 2:06 PM

Revision 2.0

TERIDIAN Semiconductor Corporation

Phone: (714) 508-8800 ▪ Fax: (714) 508-8878

Revision 2.0 1 of 66

6440 Oak Canyon Rd. Irvine, CA 92618-5201

http://www.teridian.com/

meter.support@teridian.com

71M6515H Demo Board User’s Manual

TERIDIAN Semiconductor Corporation makes no warranty for the use of its products, other than expressly contained in the Company’s warranty detailed in the TERIDIAN Semiconductor Corporation standard Terms and Conditions. The company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice and does not make any commitment to update the information contained herein.

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71M6515H

3-Phase Power Meter AFE IC

DEMO BOARD

USER’S MANUAL

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Table of Contents

1 GETTING STARTED .......................................................................................................................................... 7

1.1 General............................................................................................................................................................... 7

1.2 Safety and ESD Notes....................................................................................................................................... 7

1.3 Demo Kit Contents............................................................................................................................................7

1.4 Compatibility Statement ................................................................................................................................... 7

1.5 Suggested Equipment not included ................................................................................................................ 8

1.6 Demo Board Test Setup.................................................................................................................................... 8

1.6.1 Power Supply Setup..................................................................................................................................... 9

1.6.2 Serial Connection Setup ............................................................................................................................10

1.7 Preparing the PC ............................................................................................................................................. 10

1.8 Using the Demo Board.................................................................................................................................... 11

1.8.1 Starting up the Demo Board and the GUI Program.................................................................................... 11

1.8.2 Controlling the Demo Board.......................................................................................................................11

1.8.3 GUI Window - Overview............................................................................................................................ 12

1.8.4 GUI Window – Display and Control Fields ................................................................................................. 12

1.8.5 GUI Window Control and Display Fields – Detailed Description ................................................................ 14

1.8.6 Adjusting the Kh Factor for the Demo Board.............................................................................................. 24

1.8.7 Adjusting the Demo Boards to Different Current Transformers and Voltage Dividers ................................ 25

1.9 Calibrating the Demo Meter............................................................................................................................ 26

2 APPLICATION INFORMATION........................................................................................................................ 27

2.1 Calibration Procedure..................................................................................................................................... 27

2.1.1 Calibration Systems ................................................................................................................................... 27

2.1.2 Definitions .................................................................................................................................................. 27

2.1.3 Error Sources in a Meter ............................................................................................................................ 28

2.1.4 Calibration with Three Measurements........................................................................................................ 29

2.1.5 Calibration with Five Measurements .......................................................................................................... 30

2.1.6 Calibration for Meters with Rogowski Coil Sensors.................................................................................... 31

2.1.7 Calibration Spreadsheets ...........................................................................................................................32

2.1.8 Compensating for Non-Linearities.............................................................................................................. 33

2.2 Schematic Information.................................................................................................................................... 35

2.2.1 Components for the VFLT Pin.................................................................................................................... 35

2.2.2 Reset Circuit .............................................................................................................................................. 35

2.2.3 Oscillator .................................................................................................................................................... 35

2.3 Testing the Demo Board................................................................................................................................. 37

2.3.1 Testing the Demo Board Using the GUI..................................................................................................... 37

2.3.2 Functional Meter Test ................................................................................................................................38

3 HARDWARE DESCRIPTION ...........................................................................................................................41

3.1 Board Description: Jumpers, Switches and Test Points ............................................................................. 41

3.2 Connector Descriptions.................................................................................................................................. 44

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3.2.1 JP6 – SSI Interface .................................................................................................................................... 44

3.2.2 JP18 – External Interface........................................................................................................................... 44

3.2.3 JP21 – Debug Interface ............................................................................................................................. 45

3.3 Board Hardware Specifications ..................................................................................................................... 46

4 APPENDIX........................................................................................................................................................ 47

List of Figures

Figure 1-1: TERIDIAN 71M6515H Demo and Debug Boards: Basic Connections......................................................... 8

Figure 1-2: Block diagram for the TERIDIAN 71M6515H Demonstration Meter with Debug Board .............................. 9

Figure 1-3: Control Program Icon................................................................................................................................. 10

Figure 1-4: Host GUI Window w/ Functional Groups (Areas) Marked and Numbered .................................................12

Figure 2-1: Phase Angle Definitions............................................................................................................................. 28

Figure 2-2: Watt Meter with Gain and Phase Errors ...................................................................................................28

Figure 2-3: Calibration Spreadsheet for Three Measurements .................................................................................... 32

Figure 2-4: Calibration Spreadsheet for Five Measurements....................................................................................... 33

Figure 2-5: Non-Linearity Caused by Quantification Noise .......................................................................................... 33

Figure 2-6: Voltage Divider for VFLT ........................................................................................................................... 35

Figure 2-7: External Components for RESETZ ............................................................................................................ 35

Figure 2-8: Oscillator Circuit......................................................................................................................................... 36

Figure 2-9: Typical GUI Window .................................................................................................................................. 37

Figure 2-10: Meter with Calibration System ................................................................................................................. 38

Figure 2-11: Calibration System Screen ...................................................................................................................... 39

Figure 3-1: 71M6515H Demo Board: Connectors, Headers, LEDs, Switches .............................................................43

Figure 4-1: TERIDIAN 71M6515H Demo Board: Electrical Schematic 1/3 .................................................................. 48

Figure 4-2: TERIDIAN 71M6515H Demo Board: Electrical Schematic 2/3 .................................................................. 49

Figure 4-3: TERIDIAN 71M6515H Demo Board: Electrical Schematic 3/3 .................................................................. 50

Figure 4-4: TERIDIAN 71M6515H Demo Board: Top View ......................................................................................... 52

Figure 4-5: TERIDIAN 71M6515H Demo Board: Bottom View .................................................................................... 53

Figure 4-6: TERIDIAN 71M6515H Demo Board: Top Signal Layer .............................................................................54

Figure 4-7: TERIDIAN 71M6515H Demo Board: Middle Layer 1, Ground Plane......................................................... 55

Figure 4-8: TERIDIAN 71M6515H Demo Board: Middle Layer 2, Supply Plane..........................................................56

Figure 4-9: TERIDIAN 71M6515H Demo Board: Bottom Signal Layer ........................................................................ 57

Figure 4-10: Debug Board Schematics ........................................................................................................................ 59

Figure 4-11: Debug Board: Top View........................................................................................................................... 60

Figure 4-12: Debug Board: Bottom View ..................................................................................................................... 60

Figure 4-13: Debug Board: Top Signal Layer............................................................................................................... 61

Figure 4-14: Debug Board: Middle Layer 1, Ground Plane .......................................................................................... 61

Figure 4-15: Debug Board: Middle Layer 2, Supply Plane ........................................................................................... 62

Figure 4-16: Debug Board: Bottom Trace Layer .......................................................................................................... 62

Figure 4-17: TERIDIAN 71M6515H LQFP64: Pinout (top view)................................................................................... 65

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List of Tables

Table 1-1: Jumper settings on Debug Board................................................................................................................ 10

Table 1-2: Straight cable connections.......................................................................................................................... 10

Table 1-3: Null-modem cable connections ................................................................................................................... 10

Table 3-1: 71M6515H Demo Board Description: 1/3 ................................................................................................... 41

Table 3-2: 71M6515H Demo Board Description: 2/3 ................................................................................................... 42

Table 3-3: 71M6515H Demo Board Description: 3/3 ................................................................................................... 43

Table 3-4: JP6 Pin Description..................................................................................................................................... 44

Table 3-5: JP18 Pin Description (pins 3, 5, 7, 9, and 17 are non-functional) ...............................................................44

Table 3-6: JP21 Pin Description................................................................................................................................... 45

Table 4-1: 71M6515H Demo Board: Bill of Material..................................................................................................... 51

Table 4-2: Debug Board: Bill of Material ......................................................................................................................58

Table 4-3: 71M6515H Pin Description Table 1/2 ......................................................................................................... 63

Table 4-4: 71M6515H Pin Description Table 2/2 ......................................................................................................... 64

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1 GETTING STARTED

1.1 GENERAL

The TERIDIAN Semiconductor Corporation (TSC) 71M6515H Demo Board is a demonstration board for evaluating the 71M6515H IC for 3-phase electronic power metering applications. It incorporates a 71M6515H integrated circuit, peripheral circuitry such an on-board power supply as well as a companion Debug Board that allows a connection to a PC running Windows® 2000/XP through a RS232 port. The demo board allows the evaluation of the 71M6515H power meter controller chip for measurement accuracy and overall system use.

A control program running on a Windows 2000/XP compatible PC allows control and monitoring of the

71M6515H IC on an abstract level via a graphical user interface (GUI).

1.2

1.3

SAFETY AND ESD NOTES

Connecting live voltages to the demo board system will result in potentially hazardous voltages on the demo board.

EXTREME CAUTION SHOULD BE TAKEN WHEN HANDLING THE DEMO BOARD ONCE IT IS CONNECTED TO LIVE VOLTAGES!

THE DEMO SYSTEM IS ESD SENSITIVE! ESD PRECAUTIONS SHOULD BE TAKEN WHEN HANDLING THE DEMO BOARD!

DEMO KIT CONTENTS

• 71M6515H Demo board containing 71M6515H AFE IC

• Debug Board

• Two 5VDC/1,000mA universal wall transformer with 2.5mm plug (Switchcraft 712A compatible)

• Serial cable, DB9, Male/Female, 2m (Digi-Key AE1020-ND)

• CD-ROM containing documentation (data sheet, board schematics, BOM, layout), PC executable

program (GUI), and calibration spreadsheet

Note: The media CD-ROM contains a file named readme.txt that specifies all files found on the media and their purpose.

1.4

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COMPATIBILITY STATEMENT

This manual is compatible with REV1.1 (October 14, 2005) of the Control Program (GUI) and with 71M6515H code revision 1.1 (October 14, 2005).

71M6515H Demo Board User’s Manual

1.5

1.6

SUGGESTED EQUIPMENT NOT INCLUDED



PC w/ MS-Windows

versions XT, ME, or 2000, equipped with RS232 port (COM port) via DB9 connector

DEMO BOARD TEST SETUP

Figure 1-1 shows the basic connections of the Demo Board plus Debug Board with the external equipment.

Power supply for Demo Board

Demo Board

Debug Board

Country-specific plug adapters (US, Europe, UK, Australia)

Power supply for Debug Board

Serial

connection to

The 71M6515H demo board system is shown in Figure 1-2. It consists of a stand-alone rectangular meter Demo Board and an optional Debug Board (most Debug Boards are partially assembled and have less components than shown in Figure 1-2). The Demo Board contains all circuits necessary for operation as a meter front end, calibration LEDs, and power supply. The Debug Board is optically isolated from the meter and interfaces to a PC through a 9 pin serial port. For serial communication between the PC and the TERIDIAN 71M6515H, the Debug Board needs to be plugged with its connector J3 into connector JP21 of the Demo Board.

Connections to the external signals to be measured, i.e. scaled AC voltages and current signals derived from shunt resistors or current transformers, are provided on the rear side of the demo board.

Note: It is recommended to set up the demo board with no live AC voltage connected, and to connect live AC voltages only after the user is familiar with the demo system.

Figure 1-1: TERIDIAN 71M6515H Demo and Debug Boards: Basic Connections

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DEMONSTRATION METER

External Current

Transformers

5V DC

JP26

JP27

JP28

V3P3

3.3V

GND

JP9

JP32

JP31

GND

VC VB VA

JP25

NEUTRAL

JP24

JP23

JP22

JP1

71M6515H

Single-Chip Meter

AFE

WPULSE

RPULSE

PULSE3

PULSE4

V3P3

VA VB

GND

UARTCSZ

TMUXOUT

BAUDRATE

CKTEST

PULSE_INIT

DEBUG BOARD (OPTIONAL)

OPTO

OPTO SUPPLY

V5_DBG

5V DC

GND_DBG

JP21

JP30

JP29

DIO 0...8

SSI Signals

RS-232

INTERFACE

OPTO

SUPPLY

V3P3

OPTIONAL RTM

INTERFACE

OPTO

FPGA

V5_NI

External Interface

Connector

JP18

WPULSE

RPULSE

SSI Connector

JP6

DB9 to PC COM Port

Figure 1-2: Block diagram for the TERIDIAN 71M6515H Demonstration Meter with Debug Board

Note: All input signals are referenced to the V3P3 (3.3V power supply to the chip).

1.6.1 POWER SUPPLY SETUP

There are several choices for meter power supply:

• Internal (using phase A of the AC line voltage). The internal power supply is only suitable when

phase A exceeds 220V RMS.

• External 5VDC connector (J1) on the Demo Board and external 5VDC connector (J1) on the Debug

Board.

The power supply jumper JP1 must be consistent with the power supply choice. JP1 disconnects phase A from the power supply. This jumper should usually be left in place.

The internal supply is not strong enough to power the Debug Board. Thus, the external power supply should always be used for the Debug Board, regardless whether the meter is powered by its internal supply or through an external supply.

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1.6.2 SERIAL CONNECTION SETUP

For connection of the DB9 serial port to a PC, either a straight or a so-called “null-modem” cable may be used. JP1 and JP2 are plugged in for the straight cable, and JP3/JP4 are empty. The jumper configuration is reversed for the null-modem cable, as shown in Table 1-1.

Configuration JP1 JP2 JP3 JP4

Straight Cable installed installed -- --

Null-Modem Cable -- -- installed installed

Table 1-1: Jumper settings on Debug Board

JP1 through JP4 can also be used to alter the connection when the PC is not configured as a DCE device. Table 1-2 shows the connections necessary for the straight DB9 cable and the pin definitions.

PC Pin Function Demo Board Pin

2 TX 2

3 RX 3

5 Signal Ground 5

Table 1-2: Straight cable connections

Table 1-3 shows the connections necessary for the null-modem DB9 cable and the pin definitions.

PC Pin Function Demo Board Pin

2 TX 3

3 RX 2

5 Signal Ground 5

Table 1-3: Null-modem cable connections

1.7 PREPARING THE PC

The Control Program PMtest.exe must be copied from the CD-ROM to a directory on the host PC. The program can then be started directly by double-clicking on the PMTest.exe icon (see Figure 1-3).

Figure 1-3: Control Program Icon

PMTest.exe can work in two baud rates and on any COM port. To configure PMTest.exe for the desired operation mode, the original PMTest.exe file is copied to or renamed to a file with a name of the form:

PMTestxxxCy.exe

If xxx = 192, the program will operate at 19.2kb/s, if xxx = 384, the program will operate at 38.4kb/s (UART speed when communicating with the 71M6515H).

The number substituted for y states the COM port number that the program is using for communicating with the host.

Example: When named PMTest192C2.exe, the program will operate with 19.2kb/s via COM port 2.

PMTest.exe

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Note: For smooth operation of the PMTest program it is important to observe the following rules:

• It is important to exit all programs that access COM port 1 before PMTEST.exe is started.

• Make sure all applicable updates to the Windows ® operating system are installed before running

the application.

• PMTest.exe will not run on Windows® 98 or older operating systems.

Real-time performance can be affected by processor-intense operations of the PC, such as starting new applications, loading files into applications, or ending applications. Such operations have to be avoided to ensure uninterrupted communication between PC and the 6515H Demo Board.

Do not press the ALT key on the keyboard!

1.8

1.8.1

1.8.2

USING THE DEMO BOARD

The 71M6515H Demo Board is a ready-to-use meter with a preprogrammed scaling factor Kh of 3.2 Wh/pulse. In order to be used with a calibrated load or a meter calibration system, the board should be connected to the AC power source using the spade terminals on the bottom of the board. The current transformers should be connected to the dual-pin headers on the bottom of the board. For the Kh to be adjusted properly, current transformers with 2,000:1 winding ratio must be used.

STARTING UP THE DEMO BOARD AND THE GUI PROGRAM

In order to control and monitor the Demo Board, the connections specified in section 1.6 have to be established.

The sequence of actions when powering up the Demo Board is as follows:

1. Power up the Demo Board

2. Start the GUI Control Program PMTest.exe.

3. Check for communication between the GUI Control Program and the 71M6515H. Communication is established when the green “LED” indicator labeled 1SEC on the GUI screen flashes red every second.

4. Initialize the 71M6515H to match the desired application and measurement parameters. Establish the CE image, calibration factors, pulse parameters, nominal temperature, IMAX/VMAX using the commands and fields described in 1.8.2.

5. Establish the desired configuration using the bits of the CONFIG register (field 16 in the GUI window), but do not enable the CE.

6. Enable the CE by clicking the square button next to “CE_ENABLE”.

Once, voltage is applied and load current is flowing, the red LED D5 will flash each time an energy sum of

3.2 Wh is collected.

Similarly, the red LED D6 will flash each time a reactive energy sum of 3.2 VARh is collected.

CONTROLLING THE DEMO BOARD

Upon starting the PMTEST.exe application, the graphical user interface (GUI) of the demo application shown in Figure 1-4 will be displayed on the screen. The gray boxes are the meter outputs and the white boxes contain host, i.e. user, inputs.

It is important to enable the computation engine (CE) in order to see activity in the GUI window. You can check the computation engine (CE) status by verifying the status of the button on the left of CE_ENABLE in the “Config” block of the GUI. It should display a “1”, as shown in Figure 1-4. If not, the CE can be enabled by clicking the “0” button to the left of the “CE_ENABLE” text using the left mouse button. Upon clicking, the “0” will toggle to a “1”, and the green and red indicator lights underneath the “Status/Mask” text will start blinking.

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GUI WINDOW - OVERVIEW 1.8.3

Figure 1-4: Host GUI Window w/ Functional Groups (Areas) Marked and Numbered

1.8.4 GUI WINDOW – DISPLAY AND CONTROL FIELDS

The PMTEST (GUI) window, as shown in Figure 1-4, contains a number of major blocks or areas (Pulse Source Select, Config, Status/Mask, Calibration Constants, Temperature Compensation, Real-Time Monitor, Digital I/O, Thresholds and Operating Time). These major blocks (labeled 1 through 12 in Figure 1-4) group the functionally related buttons and fields together. The elements of the GUI are as follows:

• Rectangular buttons: Buttons that can be clicked by the user to initiate an action.

• Square buttons: Buttons that can be clicked by the user to initiate an action. The square buttons have

a single digit showing the current state of the signal. A “1” is on and a “0” is off.

• Entry fields: White rectangular fields that can be edited by the user. The delete key plus the number

and cursor keys work in this type of field.

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• Display fields: Gray rectangular fields that indicate settings, measurements etc. of the 6515H chip.

These fields cannot be edited by the user.

• List fields: Entry fields that allow selection from the pre-determined list of choices once the down-

• Indicator lights: Red and green activity indicators underneath the “Status/Mask” label.

A summary of all of the GUI window areas follows on the next pages.

pointing arrow is pressed (“pull-down” menus).

Green lights mean no activity. Red lights mean that the corresponding bit in the STATUS mask is set, i.e. the condition is true. With an input signal (phase A, B, C voltage) present, the F0 light will be on indicating that the square wave following the input signal is being generated. The light at “1SEC” will blink red every second. Other lights will stay green until the corresponding condition is true, e.g. when the input signal meets a sag or over-voltage threshold.

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1.8.5 GUI WINDOW CONTROL AND DISPLAY FIELDS – DETAILED DESCRIPTION

Energy, Voltage/Current and Phase Area (1):

This area is in the upper left corner of the GUI window and contains a number of display fields arranged in columns. Phase A is the left column, phase B is the center column and phase C is the right column.

Next to the display fields in this area, there are a list field and a rectangular button controlling basic functions of the Energy, Voltage/Current and Phase Area:

GUI Element (Label)

Element

Function

Type

Accumulated energy, Instantaneous energy

List field

This control toggles the display of the Wh, VARh and VAh fields from total accumulated energy to instantaneous energy, i.e. energy per accumulation interval

CLR ACCUM

Rectangular button

Resets the accumulators for Wh, VARh and VAh to zero. It also resets the “Main Edge” counters in the Status/Mask area and the pulse counters.

The function of the display fields depends on the selected mode, accumulated or instantaneous energy:

GUI Element (Label)

VARh

Function – Accumulated Energy Selected

These fields display the accumulated energy (real power x time) for each phase.

These fields display the accumulated reactive energy (reactive power x

Function – Instantaneous Energy Selected

These fields display the energy (real power x time) collected during the last accumulation interval for each phase.

These fields display the reactive energy (reactive power x time) for each phase.

time) for each phase.

VAh

These fields display the accumulated apparent energy (apparent power x time) for each phase.

These fields display the accumulated apparent energy (apparent power x time) collected during the last accumulation interval for each phase.

Vrms These fields display the momentary voltages (RMS) for each phase.

Irms These fields display the momentary currents (RMS) for each phase.

Iphase These fields display the momentary phase angles of the currents for each phase.

VPhase angle

These fields display the momentary phase angles between the phases A and B (underneath “--- AB ---“) and B and C (underneath “---BC---“).

Gain Adjust

This field displays the current value of the gain adjusted by the temperature compensation mechanism. It is functionally associated with the fields in area 10. When no compensation is active, or the temperature deviation is minimal, the default value of 16384 will be displayed.

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Calibration Constants Area (2):

This area is on the left side of the GUI window and contains three entry fields for each phase. The function depends on the selected CE image (CT/Shunt or Rogowski sensor):

GUI Element

Function (CT/Shunt) Function (Rogowski Sensor)

(Label)

Calibrate IA Calibration constant for phase A current (default = 16384)

Calibrate VA Calibration constant for phase A voltage (default = 16384)

Calibrate IB Calibration constant for phase B current (default = 16384)

Calibrate VB Calibration constant for phase B voltage (default = 16384)

Calibrate IC Calibration constant for phase C current (default = 16384)

Calibrate VC Calibration constant for phase C voltage (default = 16384)

Phase Adjust A

Calibration constant for phase A current angle (default = 0)

Phase Adjust B

Calibration constant for phase B current angle (default = 0)

Phase Adjust C

Calibration constant for phase C current angle (default = 0)

During calibration (see section 2.1), the values of the calibration coefficients obtained with the calibration formulae should be entered in these fields.

Temperature Compensation Area (3):

This area consists of a vertical column of entry and display fields to the right of the Calibration Constants area. The Gain Adjust field from area 1 functionally belongs in the Temperature Compensation area.

GUI Element (Label)

Element

Type

Raw Display field -- Raw temperature (chip substrate temperature)

Delta T Display field --

Nominal Entry field 0

Y Cal deg 0 Entry field 0

Y Cal deg 1 Entry field 0

Y Cal deg 2 Entry field 0

PPM/C Entry field 0

PPM/C2 Entry field 0

DEG SCALE Entry field 22721

Default Function

Difference between raw and nominal (calibration) temperature

The raw temperature should be entered here during calibration

The constant correction coefficient for the RTC can be entered here if RTC compensation is required.

The linear correction coefficient for the RTC can be entered here if RTC compensation is required.

The quadratic correction coefficient for the RTC can be entered here if RTC compensation is required.

The linear compensation coefficient of gain over temperature is entered here automatically as soon as a temperature value is entered in the “Nominal” field.

Values determined by the host may be entered here if the DEFAULT PPM bit in the Configuration area is set to

The quadratic compensation coefficient of gain over temperature is entered here. See the PPM/C field for details.

Scaling factor for the calculation of temperature. The default value for DEG SCALE (22721) should not be changed. TEMP_X = DEGSCALE * 2

Calibration constant for phase A current angle (default = -3973)

Calibration constant for phase B current angle (default = -3973)

Calibration constant for phase C current angle (default = -3973)

-22

* (TEMP_RAW - TEMP_NOM)

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Rogowski Calibration Area (4):

This area consists of two vertical columns of entry fields in the lower left side of the window. The coefficients are only active when the Rogowski image is selected for the CE.

GUI Element (Label)

Default Function

VFeedA Watt 0 Calibration coefficient for phase A voltage feed through (default = 0)

VFeedB Watt 0 Calibration coefficient for phase B voltage feed through (default = 0)

VFeedC Watt 0 Calibration coefficient for phase C voltage feed through (default = 0)

VFeed A I 0 Not implemented

VFeed B I 0 Not implemented

VFeed C I 0 Not implemented

Pulse Source Selection Area (5):

This area consists of four list fields to the right of the Energy, Voltage/Current and Phase area. The entries determine the configuration and settings of the two pulse outputs used for four-quadrant metering.

GUI Element

Default Function

(Label)

Pulse1 Source Wh

Pulse2 Source VARh

Pulse3 Source Wh

Pulse4 Source VARh

When external source is selected for any pulse generator, the missing pulse flags (PULSE1, PULSE2, PULSE3, PULSE4) will be active for each accumulation interval for which the host does not provide an input.

Pulse Count Area (6):

This area consists of a vertical column of display fields underneath the Pulse Source area.

GUI Element

Default Function

(Label)

PULSE1_Cnt 0 This field displays the count of pulses generated on the PULSEW output.

PULSE2_Cnt 0 This field displays the count of pulses generated on the PULSER output.

PULSE3_Cnt 0 This field displays the count of pulses generated on the PULSE3 output.

PULSE4_Cnt 0 This field displays the pulse count of pulses generated on the PULSE4.

Pressing the CLR ACCUM button in area 1 will reset the pulse counts to zero.

This list field allows selection of internal, external, or one of 35 postprocessed parameters as the source for the PULSEW output.

This list field allows selection of internal, external, or one of 35 postprocessed parameters as the source for the PULSER output.

This list field allows selection of either an external (host) input or one of 35 post-processed parameters as the source for the PULSE3 output. The selection “none” is also available.

When “none” is selected, the pulse output is disabled.

This list field allows selection of either an external (host) input or one of 35 post-processed parameters as the source for the PULSE4 output. The selection “none” is also available.

When “none” is selected, the pulse output is disabled.

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External Pulse Control Area (7):

This area consists of a vertical column of combined display/entry fields to the right of the Pulse Count area.

A field can be made and entry field by selecting “External” for the corresponding pulse source in the Pulse Source Selection area. In all other selections the fields are display fields.

When the corresponding Pulse Source selection in the Pulse Source Selection area is “External”, values can be entered in the External Pulse Control fields to simulate pulse control by the host.

A new value must be entered in each new accumulation interval. The displayed values return to zero as soon as the next accumulation interval starts and no new values are supplied by the host. If no values are supplied by the host, the associated flags in the STATUS register (see STATUS/MASK area) will be set.

If very large numbers are entered, the pulses may be generated over several accumulation intervals.

When the corresponding Pulse Source selection in the Pulse Source Selection area is “Internal” or postprocessed values, the display fields of the External Pulse Control area contain input values N that correspond to the pulse rate “f” per the equation:

f = WRATE * X * N * 35.82*10

In other words, the ADC count corresponding to the applied voltages at the Vn and In pins (VA/IA, VB/IB, VC/IC) will be displayed.

GUI Element (Label)

Pulse1 0 Host-provided pulse count for the PULSEW output.

Pulse2 0 Host-provided pulse count for the PULSER output.

Pulse3 0 Host-provided pulse count for the PULSE3 output.

Pulse4 0 Host-provided pulse count for the PULS4W output.

Pulse Width and Pulse Rate Control Area (8):

This area consists of two entry fields to the right of the Temperature Compensation area.

GUI Element (Label)

WRATE 683

Pulse Width 6.68ms This field determines the pulse width in ms.

Default Function

-12

This field, together with SUM_CYCLES, VMAX, IMAX and In8 determines the Kh factor of the chip as follows:

Kh /5757.1

X is determined by the two fields PULSE_SLOW and PULSE_FAST in the Configuration area.

InIMAXVMAX

XWRATECYCLESSUM

PulseWh

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System Constants Area (9):

This area consists of two entry fields to the right of the Temperature Compensation area. Entries in these fields determine the system parameters of the Demo Board.

GUI Element (Label)

IMAX 208A

VMAX 600V

Warning Thresholds Area (10):

This area consists of seven entry fields to the right of the Temperature Compensation area.

GUI Element (Label)

Creep 27000

Vrms Peak 733.2 Threshold for over-voltage alarms, measured in Vrms.

Irms Peak 254.2 Threshold for over-current alarms, measured in Arms.

Sag (Vpk) 79.9

SagCnt 80

Starting V 39.974

Starting I 0.048

Default Function

IMAX is the RMS meter current that results in 250mV peak signal at the ADC input. This variable reflects the scaling implemented by the voltage sensing resistors of the Demo Board.

Note: When using shunt resistors as current sensors, IMAX must be

ppmax

⋅

= 250mV):

max

calculated as (V

IMAX

VMAX is the RMS meter voltage that results in 250mV peak signal at the

ADC input. This variable reflects the design of the current sensing circuitry of the Demo Board, assuming a 2000:1 current transformer.

Determines the creep threshold. For each phase, if WSUM_X and VARSUM_X of that phase are less than the value in the CREEP field, the contents of I2h, Wh, and VARh for that phase will be set to zero for the whole accumulation interval. If all phases are below the creep threshold, the CREEP bit in the status word is set. The default value is 6000.

Determines the voltage sag threshold. The peak voltage must exceed the voltage entered in this field at least once each SAG_CNT samples in order to prevent a sag warning.

Values can be entered directly in Volts. The GUI will round the entered value to the next possible value that can be represented with the resolution used for this parameter.

Determines the sag alarm setting. Sag must persist SAG_CNT*397µs

before the sag alarm is generated. Allowed range is 1 to (215-1). Default is 80 (31.7ms).

Determines the voltage below which the calculation of frequency, zero crossings and voltage phase is suppressed.

Determines the current below which the calculation of current-related values is suppressed.

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Real-Time Monitor Area (11):

This area consists of four entry fields to the right of the System Constants area. The entries determine any four CE data memory locations to be monitored. The RTM_ENABLE square button in the Configuration area has to be in the “1” position for the RTM to be active.

GUI Element

Default Function

(Label)

RTM0 0x00 First CE data memory location to be monitored.

RTM1 0x00 Second CE data memory location to be monitored.

RTM2 0x00 Third CE data memory location to be monitored.

RTM3 0x00 Fourth CE data memory location to be monitored.

Note: Using the RTM interface requires special external hardware. Contact TERIDIAN for details.

QUANT Area (12):

This area consists of three entry fields that can be used to eliminate non-linearity at low currents caused by truncation noise. The parameters entered here are closely related to the calibration parameters.

GUI Element

Default Function

(Label)

Watt 0 Noise compensation factor for the Watt calculation

VAR 0 Noise compensation factor for the VAR calculation

I 0 Noise compensation factor for the current calculation

Multi-Purpose Area (13):

This area consists of two list fields and three rectangular buttons.

GUI Element (Label)

Element Type

SCALED/RAW List field

STANDARD/

List field

HEX

Refresh

Rectangular button

Apply

Rectangular button

CLEAR

Rectangular button

Function

This list field toggles the display of display and entry fields between scaled (displayed values scaled using IMAX and VMAX) and raw data (raw counts from 6515H) mode. In scaled mode, values for voltage, current, and energy will be displayed as V, A, Wh, VARh etc. In raw mode, the values will appear in the internal format of the 71M6515H chip.

This list field toggles the values shown in display and entry fields between standard (decimal) and hexadecimal mode.

Pressing this button forces the GUI to transmit any changes made in entry or list fields to the 71M6515H chip.

Placing the cursor into another entry field will have the same effect as the Refresh button. Pressing this button will apply a change made in an entry field.

Pressing this button will clear the contents of the Status Window.

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Digital I/O Area (14):

This area consists of three entry fields below the Real-Time Monitor area. The entries determine the configuration and settings of the eight DIO pins (D0 to D7).

GUI Element

Default Function

(Label)

Values 0x00

Interrupts 0x00

Direction 0xFF

A signal transition on an input pin will generate a DEDGE interrupt only once. This interrupt will not be synchronized with the accumulation interval or the 1-sec interrupt. Several transitions per accumulation interval are possible.

With every signal transition on a DIO pin, the message “Some Dn pin values have changed!” will be displayed in the Status Window.

Status Window Area (15):

This is the white, rectangular window at the bottom center of the GUI display. Activities of the PMtest.exe GUI Control program, error messages etc. are listed here.

If more events occur than can be displayed in the lines of this window, the display will scroll. Events and messages that occurred in the past will then be displayed by scrolling the window using the scroll arrows to the right of it.

When the rectangular CLEAR button above the Status Window is pressed, the messages displayed in the Status Window are deleted.

The hexadecimal number entered here defines the pattern that is applied to the I/O pins.

The hexadecimal pattern entered in this field determines whether a DEDGE interrupt is generated upon a bit changing its status. A 1 means that the corresponding DIO pin generates an interrupt.

DEDGE interrupts are only generated for DIO pins that are configured as inputs.

The hexadecimal number entered here defines whether I/O pins are inputs (0) or outputs (1).

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TERIDIAN Semiconductor 71M6515H User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY AND ESD NOTES

DEMO KIT CONTENTS

COMPATIBILITY STATEMENT

SUGGESTED EQUIPMENT NOT INCLUDED

DEMO BOARD TEST SETUP

1.6.1 POWER SUPPLY SETUP

1.6.2 SERIAL CONNECTION SETUP

USING THE DEMO BOARD

STARTING UP THE DEMO BOARD AND THE GUI PROGRAM

CONTROLLING THE DEMO BOARD

GUI WINDOW - OVERVIEW 1.8.3

1.8.4 GUI WINDOW – DISPLAY AND CONTROL FIELDS