Maxim Integrated 6612-OMU-S2+2-URT-V1-14 User Manual

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Simplifying System IntegrationTM

USER GUIDE

6612_OMU_S2+2_URT_V1_14

Firmware Description Document

March 5, 2010

Rev. 1.0

UG_6612_017

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

© 20 10 Terid i an Semiconductor Corp or ation. All rights reser ved. Teridian Semiconductor Corporation i s a regi stered trademark of Teridian Semiconductor Corporation. Simplifying System Integration is a trademark of Teridian Semiconductor Corp or ation. All other trademarks are the property of their res pect ive own ers.

Teridian Semiconductor Corporation makes no warran ty for the use of it s product s, other than expressl y contained in the Comp any’s warrant y detailed i n the Teridian Semiconduct or Corporation stan dard Terms and C ondit ions. The company assumes no res ponsibility for an y errors which may appear in this document, reserves the right to c hange devices or specific ations detailed herein at any tim e without notice and does not make any commitment to updat e the i nform ation contained herein . Accord in gly, the reader is cau tioned to verify that this docum ent i s c urren t by comp ar i ng it to the latest vers ion on http:// w ww.teridian .com or by checking with your s al es representat i ve.

Terid i an Semic onductor Corp., 6440 Oak C anyon, Su ite 100 , Irvine, CA 92618

TEL (714) 508-8800, FAX (714) 508-8877, http://www.teridian.com

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Table of Contents

1 Introduction ................................................................................................................................... 5

2 Description of Basic Measurement Equations ............................................................................. 5

3 Serial Communication ................................................................................................................... 6

4 Command Line Interface ............................................................................................................... 7

4.1 Identi fication and Information Commands ................................................................................. 7

4.2 Reset C ommands .................................................................................................................... 7

4.3 MPU Data Ac cess C om mand ................................................................................................... 8

4.3.1 Individ ual Add r ess Read .............................................................................................. 8

4.3.2 Cons ecut ive Read ....................................................................................................... 8

4.3.3 Block Reads ................................................................................................................ 9

4.3.4 Conc atenated Reads ................................................................................................... 9

4.3.5 MPU/XD AT A Ac ce s s Co m mands .............................................................................. 10

4.4 Auxiliary Comman ds .............................................................................................................. 11

4.4.1 Repeat Command ..................................................................................................... 11

4.5 Calib r ation C ommands ........................................................................................................... 12

4.5.1 Complete C alibration Command ( “ Single Comm and Calibration”) .............................. 12

4.5.1.1 CAL Command............................................................................................ 12

4.5.1.2 CALW Command ........................................................................................ 13

4.5.2 Atomic Calibr ation C om mands................................................................................... 14

4.5.2.1 CLV Command............................................................................................ 14

4.5.2.2 CLI Comm and ............................................................................................. 14

4.5.2.3 CLP Command............................................................................................ 14

4.5.2.4 CLT Command ............................................................................................ 15

4.6 CE Data Access C om mand s .................................................................................................. 16

4.6.1 Single Regis ter CE Access ........................................................................................ 16

4.6.2 Cons ecut ive CE Reads.............................................................................................. 16

4.6.3 U Command .............................................................................................................. 17

4.7 CE Control C om man ds .......................................................................................................... 18

4.7.1 CE Data Write ........................................................................................................... 18

4.7.2 Turn Off CE Command .............................................................................................. 18

4.7.3 U Command .............................................................................................................. 18

4.7.4 Turn On CE C om mand .............................................................................................. 18

4.8 I/O RAM (Config urati on RA M ) Command ............................................................................... 19

5 MPU Measurement Outputs ........................................................................................................ 20

6 Configuration Parameter Entry ................................................................................................... 40

6.1 MPU Parameters ................................................................................................................... 40

6.2 CE Parameters ...................................................................................................................... 48

7 Address Content Summary ......................................................................................................... 52

8 Contact Information ..................................................................................................................... 57

Revision History .................................................................................................................................. 57

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Tables

Table 1 : Measurement Equations Defini tions ........................................................................................... 5

Table 2: Outlet 1 MPU Output s for Narrowband Method Table 3: Outlet 1 MPU Outputs for Wid eband M ethod Table 4: Outlet 2 MPU Output s for Narrowband Method Table 5: Outlet 2 MPU Output s for Wideband M ethod Table 6: Combined Out lets MPU Outputs for Narrowb and M ethod Table 7: Combined Out lets MPU Outputs for Wideband Method Table 8: MPU Parameters Table 9: CE Parameters Table 10: MPU Output Summar y Chart Table 11: MPU Input Summary Chart Table 12: C E Input Summary Chart

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1 Introduction

This document describes the firmware 6612_OMU_S2+2_URT_V1_14, which c a n be use d wi th t he Teridian 78M6612 power and energy measurement IC. This firmware provides simple methods for calibration, rel ay control, and access to measurement data su ch as W atts, Voltage, Cur r ent, accumulated Energy and line frequency. It is optimized for measurement of up to two single phase A C loads using current shun ts as the current sensors, but Current Transformer (CT) sen sors may also be used if desired.

All meas urement cal culations are computed by the 78M6612 and communicated to the host processor over a serial interfac e ( UART0) on the TX an d RX pins of the 78M6612 devic e. RTC (real time clock), LCD D r iver, and Battery Modes ar e not s uppor ted by t his fir mware. Additio na l 78M6612 hardware utilized by this firmware includes:

• DIO20 used as a configurabl e status alarm output pin

• DIO4, DIO5, and DIO8 as LED outputs for Active, Ready, and Faul t st atus

• DIO7 and DIO19 used as co nfigurable relay control ouputs

• DIO6 used as an opti onal pu lse output

The follo wing s ections detai l th e commands t o be sent by the hos t to configure the 78M6612 and for accessing measurement information.

2 Description of Basic Measurement Equations

The Teridian 78M6612 with firmware 6612_OMU_S2+2_URT_V1_14 provides the user with two types of continuously u pdati ng m easurement data (on 1 second incremen ts by default). One is defined as “Narrowband” (NB) and the other is defined as “Wideband” (WB).

Narrowband meas urement s are typical ly used by uti l ities where the meas ured waveforms are assumed to be sin usoidal.

Wideband measurements are generally of interest when measuring nonlinear systems such as switched mode power su ppl ies that tend to have non -sinusoidal waveforms. This firmware utilizes an effective samp ling rate of 3641 sam ples per sec ond.

Table 1 lists the basic measurement equations for the Narrowband and the Wideband methods.

Table 1: Measurement Equations Definitions

Symbol Parameter Narrowband Equation Wideband Equation

V RMS Voltage V = √∑v(t)2 V = √∑v(t)2

I RMS Current I = S/V

P Active Power P = ∑ (i(t) * v(t)) P = ∑ (i(t) * v(t)) Q

PF Power Factor P/S P/S PA Phase Angle ACOS (P/S) ACOS (P/S)

Reactive

Power

Apparent

Power

Q = ∑ (i(t) * v(t)shift 90º)

S = √(P2 + Q2) S = V * I

I = √∑i(t)2

Q = √(S2 – P2)

Both typ es of meas urement ou tputs ar e continuously available to th e user. To obtai n measurem ent outputs, the serial UART interfac e between the 78M6612 and the host pr ocessor m ust be set up and is described in the next section.

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3 Serial Communication

The serial comm unication with th e 78M6 612 tak es place over a UART (UAR T0) interfac e. The d efaul t settings for the UART of the 78M6612, as implemented i n this firm ware, are given below:

Bau d Rate: 38400bps Data B its: 8 Parity: None Stop Bits: 1 Flow Control: Xon/Xoff

The hos t’s s er ial interface port is required to i mp lement these s ettings on its UART. To verify communication between the host and the 78M6612, the host must send a <CR> ( carriage return) to the 78M6612. Communication is verified when the 78M6612 returns a > (greater than sign) known as the command prompt. An example is given below:

The host sends the following to the 78M6612: <CR> The 78M6612 sends the following back to the host: >

Commands the host may send to the 78M6612 in order for the host to configur e the 78M6612 or to receive the measurement data are given in the next sec tion .

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4 Command Line In ter f ace

Firmware 6612_OMU_S 2+2_URT_V1_14 implements an instruction set called the Command Line Interface (CLI), which facilitates communication via U ART between the 78M6612 and the host proces sor. The CLI provides a set of commands wh ich are u sed by the host to confi gur e and to obtain information from t he 78M 6612.

4.1 Identification and Information Commands

The I command is used to identi fy the re visions of Demo Cod e and the c ontain ed CE code. The host sends th e I command to th e 78M66 12 as follows:

4.2 R eset Comman ds

A soft r eset of the 78M66 12 can be performed by usin g the Z com mand . The soft r eset res tarts code execution at ad dr 000 0 but does not al ter flash con tents. To issue a soft r eset to the 78M6612, the host sends the following:

>Z<CR> The W command acts like a h ar dware reset. The energy accu mu lators i n XRA M will retain their values.

Z Reset

Description: Allows the user to caus e soft resets. Usage: Z Soft reset.

W Simu l ates watchdog reset.

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4.3 MPU Data Acces s Comman d

The most p er tin ent is the MPU data acces s command. All the measurement calc ulations are stored i n the MPU data addres ses of the 78M6612. The h ost requests measu r ement i nform ation u sing the MPU data access command which is a right parenthesis

) To request information, th e host sends the MPU data access command, the addres s (in hex) which is

requested, the format in which the dat a i s desired (Hex or Decimal) and a carr i age r eturn. Th e cont ents of the addresses that would be request ed by the h ost are c ontai ned in Section 5.

4.3.1 Individual Address Read

The hos t can request the information in hex or decimal format. $ requests in formation in hex, and ? requests information in decimal. When requesting information in decimal, the data is prec eded by a + or a -. The exception is )AB? which returns a string (see the AB description).

An example of a command requesting the meas ured power in Watts from Outlet 1 (located at address 0x08) in decimal is as follows:

>)08?<CR> An example of a command requesting the meas ured power in Watts from Outlet 1 (located at address

0x08) in hex is as follows: >)08$<CR>

4.3.2 Consecutive Read

The hos t can request in formation from con secutive addresses by ad din g additional ? for decimal or add i tion al $ for h ex.

An example of requests for the c ontents in decim al of ten c onsecuti ve addresses starting with 0x12 is: >)12??????????<CR> An example of requests for the c ontents in hex of ten consecutive addresses starting with 0x12 would be: >)12$$$$$$$$$$<CR>

Note: The number of c haracters p er line is limited to no more than 60.

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4.3.3 Block Reads

The block read command can also be used to read consecutive registers: )saddr:eaddr? For decimal format or )saddr:eaddr$ for hex fo r mat where saddr is the start address and eaddr is the final ad dress .

The following block r ead command r equest s the Outlet 1 wideband information contai ned i n Table 4 in deci mal format:

>)20:3D?<CR>

4.3.4 Concatenated Reads

Multipl e commands c an al so be added on a single line. Reques ting information i n decimal from two locati ons and the bloc k command from above are given below:

>)12?)15?)20:3D?<CR> Note: The number of c haracters p er line is limited to no more than 60.

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4.3.5 MPU/XDATA Access Commands

) MPU Data Access

Description: Allows user t o r ead from an d write to MPU data space. Usage: ) {Starting MPU Data Address} {opt ion}…{option}<CR> Command

Combinations:

Examples: )08$<CR> Reads data word 0x08 in hex format.

)saddr? <CR> Read the regist er in decimal. )saddr?? <CR> Read two consecut i ve regi sters i n decimal. )saddr???<CR> Read three consecut ive registers in decimal.

)saddr:eaddr?

Block read command in decimal format. Read consecutive regi sters starting with starting add r ess saddr and endi ng with addres s eaddr.

Results given in decimal. )saddr$<CR> Read the register word in hex. )saddr$$ <CR> Read two consecutive register words in hex. )saddr$$$<CR> Read three consecutive register words in hex.

)saddr:eaddr$

Block read command in hex format. Read

consecutive regi sters starting with starting

add r ess saddr and endi ng with addres s eaddr.

Results given in hex. )saddr=n<CR> Write the value n to add r ess saddr in hex format. )saddr=n=m<CR> Write th e values n and m to two consecu tive

add r esses s tarti ng at saddr in hex format. )saddr=+n<CR> Write the value n to addres s saddr in decimal

format. )saddr=+n=+m<CR> Write the values n and m to two cons ecut ive

add r esses s tarti ng at saddr in decimal format.

)08$$<CR> Reads data words 0x08, 0x09 in hex format. )08$$$<CR> Reads data words 0x08, 0x09, 0x0A in hex

format. )28:4D$ Read Outlet 1 narrowband data words in hex. )08?<CR> Reads data word 0x08 in decimal format. )08??<CR> Reads data words 0x08, 0x09 in decimal format. )08???<CR> Reads data words 0x08, 0x09, 0x0A in decimal

format. )28:4D? Read Outlet 1 wideband data words in decimal. )04=12345678<CR> Writes word @ 0x04 in hex format. )04=12345678=9876ABCD<CR> Writes two words starting @ 0x04 in hex format. )04=+123<CR> Writes word @ 0x04 in d ecim al format. )04=+123=+334<CR> Writes two words starting @ 0x04 in decimal

format.

MPU or XDATA space is th e address r ange for the MPU X RA M ( 0x00 to 0x7F). Addresses from 0x80 to FF wrap to 0x00 to 0x7F. The MPU reg isters differ in size, L SBs and format.

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4.4 Auxiliary Commands

4.4.1 Repeat Command

The repeat c ommand can be usefu l for monitoring m easuremen ts and i s efficient in demands from the host.

If the host requ ests l ine freq uency, alarm st atus, Irms nb overc urrent event count, Vrms SAG event count, Vrms overvoltage even t cou nt, voltage, power, an d acc umu l ated energy measurements for Outlet 1 with the fol l owing c om mand string:

>)01????????<CR> If the host then desires this same request without iss uing another command, the repeat command c an be

used: >, (no carriage return needed for the repeat command) The hos t onl y needs to sen d one charact er r ather than an entire string.

Auxiliary

Description: Various Commands: , Typing a c om ma (“,”) repeats t he command

issued from the previous com mand l ine. This is very helpful when exami ning the value at a certai n address over time, such as the CE DRAM addr ess for the temperature.

/ The slash (“/”) is useful to separ ate comments

from commands when sending m acro text fi les via the serial interface. Al l characters i n a line after the slash ar e ignored.

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4.5 Calibration Commands

Using th e pr ecision sou r ce method, the u ser provides a precis i on voltage and precision cu r r ent l oad to the device fo r calib r ati on. The 6612_OMU_S2+2_URT_V1_14 firmware provides commands to calibrate the measurement units. For lin ear current sensors, su ch as current shunt, no phase calibration is necessary.

There ar e two types of c alibration commands. The first type provides complet e calib r ation. The second group, called atomic calib r ation commands, provides calibration for individual portions of the IC.

4.5.1 Complete Calibration Command (“Single Command Calibration”)

There ar e two calib r ation commands in this first grou p: CAL and CALW. Only one of these commands is needed to calib r at e the System/Unit.

To use these c ommands, a precision voltage s ource and a precision current source are requi r ed

4.5.1.1 CAL Command

To use the CA L command, enter the following : >CAL<CR> The response is: TCal OK

VCal OK ICal 0 OK >

The dev i ce would cal ibrate th e temperature (reads CE register 71, ent er s it into MPU register C0, and saves to flash), cal ibrate th e voltage (adj ust s CAL VA and CAL VB r egisters and saves th em to flash), and finally calibrate th e current (adju sts CAL IA regist er and saves to flash).

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4.5.1.2 CALW Command

To use the CALW comm and, enter the following: >CALW<CR> The response is: TCal OK

VCal OK WCal 0 OK > The dev i ce will calibrate t he temperatu r e, calibrate the voltage, and finally calibrate the po wer and s ave all values t o flash.

The commands are summarized in the table below:

CALx Complete Calibration Commands

Description: Allows the user to Calibr ate the IC. Usage: CAL Calibrates temperature, then voltage,

and finally current for Outlet 1.

CAL2 Calib r ates t emp er ature, then volt age,

and finally current for Outlet 2.

CAL3 Calib r ates t emp er ature, then volt age,

and finally current for both Outlet1 and Outlet 2.

CALW Calib r ates t emp er ature, then volt age,

and finally power for Outlet 1.

CALW2 Calibrat es temperature, then voltage,

and finally power for Outlet 2.

CALW3 Calibrat es temperature, then voltage,

and finally power for both Outlet1 and Outlet 2.

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4.5.2 Atomic C alib ration C ommand s

The atomic c al ibration c ommands provide individual calibration of voltage, cur r ent, temperature, watts and a sequence of these result s in providing fu l l calibration for the unit.

4.5.2.1 CLV Command

An example of an atomic c alibration comm and would be to calibrate volt age with t he CLV command. The CLV command calibrates voltage to t he target value and tolerance and s aves the coefficien ts t o flash. The CLV command example is gi ven below:

>CLV<CR> The response is: VCal OK

4.5.2.2 CLI Command

The us er can then calibrate the cu r r ent on Outlet 1 using the CLI1 command. The CLI 1 comm and calibrates the current on Outlet 1 to the target valu e and tol er ance and saves the c oefficients to fl ash. The CLI1 command example is given below:

>CLI1<CR> The response is: ICal 0 OK

4.5.2.3 CLP Command

The us er can calibrate for phase added by a current transformer by using the CLP command. The CLP command calib r ates th e phase on Outlet 1 to the target valu e and toleran ce and saves the coefficient to flash. An example of th e procedure is given below.

App l y a c ontrol led precision vol tage and current s ig nal at a set ph ase angle.

1. Enter target phase angle at ) C 3.

2. Enter phas e tolerance at )BF

3. Enter phas e calib r ation command. >CLP<CR>

The response is >PCal 1 OK

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4.5.2.4 CLT Command

The CLT command is us ed for the temperature calib r ation. Wi th this command, the content s of CE register 71 are read and entered i nto MPU r egister C0 and the c ontents are saved to flash. Th e C LT command exampl e i s given below:

>CLT<CR> The response is:

TCal OK >

A summary of the atomic calibration commands are gi ven in the table below:

CLxx Atomic Calibration

Commands

Description: Allows the user to Calib r ate individ ual sections of the IC. Usage: CLV Calibrates volt age only.

CLI1 Calib r ate current on Outlet 1 only. CLI2 Calib r ate current on Outlet 2 only. CLI3 Calib r ate for current on both Outl et 1 and Outlet 2

only. CLW1 Calibrate for power on Outlet 1 only. CLW2 Calibrate for power on Outlet 2 only. CLW3 Calibrate for power on both Outlet 1 and Outlet 2. CLP Cal ibrate for phase on Outlet 1 only. Generally only

used when using cu r r ent transformers. CLP2 Calibrate for phase on Outlet 2 only. Generally onl y

used when using cu r r ent transformers. CLP3 Calibrate for phase on both Outlet 1 and Outlet 2.

Gener ally on ly used when using cu r r ent transformers. CLT Calib r ate temperature only.

The commands that follow are mainly for advanced users and are included for reference only.

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4.6 CE Data Acc es s Co m ma nds

The CE i s the main signal proces sing unit in the 78M6612. The user writes to the C E data space are mainly for calibration purposes. For the advanc ed user, details of CE data access commands are described. Th e commands similar to th e M PU access except that ] is u sed for the CE data access command.

The hos t request s access to inform ation from the CE data space using the CE data access command which is a right bracket:

] To request information, th e host sends the CE data access c ommand, the address (in hex) which is

requested, the format in which the data is desired (hex or decimal) and a car r iage return. The cont ents of the addr esses that would be r equested b y the host are contained in Section 5.

The hos t can request the information in hex or decimal format. $ requests information in hex and ? requests information in decimal.

4.6.1 Single Register CE Access

An example of a command requesting the calibration constant for c urrent on Outlet 1 (located at address 0x08) in decimal is as follows:

>]08?<CR> An example of a command requesting the calibration cons tant for current on Outlet 1 (located at ad dress

0x08) in hex is as follows: >]08$<CR>

4.6.2 Consecutive CE Reads

The hos t can request in formation form con secutive addresses by ad din g additional ? for dec imal or add i tion al $ for h ex.

An example of requests for the c ontents in decim al of ten c onsecutive addresses starting with 0x08 would be: >]08??????????<CR> An example of requests for the contents in hex of ten consecutive addresses starting with 0x08 would be: >]08$$$$$$$$$$<CR> Note: The number of c haracters p er line is limited to no more than 60.

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4.6.3 U Command

The U command is used for updat ing default values of the CE Data in flash . The desc r ipt i on is given i n the CE control Command secti on.

Additional examples are pro vided i n the table that follows:

] CE Data Access

Description: Allows user t o r ead from an d write to CE data s pace. Usage: ] {S tarting CE Data Add r ess}{option}…{option}<CR> Command

Combinations:

Examples: ]40$<CR> Reads CE data word 0x40 in hex.

CE data space is the address range for the CE DRAM (0x1000 to 0x13FF). All CE data words are in 4-byte (32-bit) format. The offset of 0x1000 does not have to be entered when using the ] command, thus typing ]A? will ac cess the 32-bit word located at the byte address 0x1000 + 4 * A = 0x1028.

]saddr?<CR> R ead 32-bit word in decimal. ]saddr??<CR> R ead two consecutive 32-bit words in decimal. ]saddr???<CR> R ead three consecutive 3 2-bit words in decimal. ]saddr$<CR> R ead 32-bit words in hex. ]saddr$$<CR> R ead two consecutive 32-bit words in hex. ]saddr$$$<CR> R ead three consecutive 32-bit words in hex. ]U<CR> Update default version of CE Data in

FLASH. Important: The CE must be

stopped (CE0) before issuing this command! Also, remember to restart

by executing the CE1 command prior to attempting measurements.

]40$$<CR> Reads CE data words 0x40 and 0x41 in hex. ]40$$$<CR> Reads CE dat a words 0x40, 0x41 and 0x42 in

hex. ]40?<CR> Reads CE data words 0x40 in decimal. ]40??<CR> Reads CE data words 0x40 and 0x41 in decimal. ]40???<CR> Reads CE dat a words 0x40, 0x41 and 0x42 in

decimal. ]7E=12345678<CR> Writes word at 0x7 E (hex format). ]7E=12345678=9876ABCD<CR> Wri tes two words s tarting at 0x7E (hex format). ]7E=+2255<CR> Write the value 2255 in decimal to l ocation 0x7E. ]7E=+2255=+456<CR> Write the value 2255 in decimal to l ocation 0x7 E

and the value 456 in decimal to location 0x7F.

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4.7 CE Control Commands

The most p er tin ent command is the enable c om mand , CEn. It is mainly used to t urn the C E on or off such th at the CE data contents can be updated in flash using the U comm and. The CE is n or mally on but in order to update the CE data entry, the CE must first be turned off using the CE0.

4.7.1 CE Data Write

If the cal coefficient for the IA current inp ut is ch anged: >]08=FFFFC9B0<CR>

4.7.2 Tu rn Off C E Command

For this value to b e the default value, th e U command is used. The CE must first be turned off using the CE0 command:

>CE0<CR>

4.7.3 U Command

The U command is now is sued to change the default value set above as foll ows: >]U<CR>

4.7.4 Turn On CE Command

The CE must then be turned on using the CE1 comm and: >CE1<CR> The default value for th e C AL IA coefficient is now changed in the CE Data space and is updated in

Flash. The CE C ontrol Command s are highlighted in the table below:

C Compute Engine Control

Description: Allows the us er to enable an d configure the c om pute engine. Usage: C {option} {argument}<CR> Command

Combinations:

Examples: CE0<CR> Disables the CE.

CEn<CR> Compute Engine Enable (1  Enable,

0  Disable)

CTn<CR> Select input n for TMUX out put pin. Enter n i n hex

notation. CREn<CR> RTM output cont r ol ( 1  Enable, 0  Disable) CRSa.b.c.d<CR> Selects CE addresses for RTM output. (maximum

of four ).

CE1<CR> Enables th e C E. CT1E<CR> Selects t he CE_ BUSY signal for the TMUX output

pin.

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UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

4.8 I/O RAM (Configuration RAM) Command

The RI command is u sed for altering t he I/O RAM contents. This is usually not necess ary as t he FW defaults thes e sett i ngs appropriately.

One case wher e the RI command could be used would be to change the accum ulation interval for energy measurement s. The default ac cumulati on int er val is 1 second (999.75 ms). The accumulation i nterval i s set by the following:

0.01666 * SUM_CYCLES[5:0] (in sec onds) where SUM_CYCLE[5:0] are regist er bit s in the I/O RAM that can be between 1 5d and 63d (default i s 60d). SUM_CYCLES must never be set below 15 (0.250 seconds).

To reduce t he acc um ulation interval to 0. 5 seconds, enter t he following via the UART: RI1=+30<CR>

En tering a U command will preserve th e new accu mu lation value acr oss p ower resets, by writing them to flash.

R I/O RAM Control

Description: Allows the us er to read from and write to I/O RAM . Usage: RI {option} {reg ister} … {opti on} <CR> Command

Combinations: Example: RI60$$$$<CR> Read all four RTM prob e reg isters.

Configurati on RA M space is the address rang e 0x2000 to 0x20FF. This RA M contains registers used for configuring basic hardware and functional properties of the 78M6612 and is organized in bytes (8 bits). The 0x2000 offset is automatically added when the command RI is typed.

RIx…<CR> Select I/O RAM location x (0x2000 offs et is

automatically ad ded) .

Rev. 1.0 19

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Minimum Temperature Alarm.

5 MPU Measurement Outputs

This s ection des cribes the measu r emen t outputs that can be obtained. Energy outputs are accumulated numbers. The host accessing the measur ement i nformation from the 78M6612 mor e frequently will not result in any update i n the information.

Table 2 list s the Narrowband outputs for Outlet 1.

Table 2: Outlet 1 MPU Outputs for Narrowband Method

Output

Delta

Temperature

Line

Frequency

Alarm Status 02

Location

(hex)

20 Rev. 1.0

LSB Comment Example

00 0.1 °C Temperature difference from 22 °C.

01 0.01 Hz Line Frequency.

Definiti o n for Status Register

Bit 0 –

Bit 1 – Maximum Temperature

Alarm.

Bit 2 – Minimum Frequency Alarm.

Bit 3 – Maximum Frequency Alarm.

Bit 4 - SAG Voltage Alarm.

Bit 5 – MINVA – under minimum

voltage on VA input.

Bit 6 – MAXVA – over maximum

voltage on VA input.

Bit 7 – MAXIA_NB – maximum

narrowband current exc eeded on

Outlet 1.

Bit 8 – MAXIA_WB – maximum

wideband current exceeded on

Outlet 1.

Bit 9 – PFA_NB negative – Narrowband Power Factor Negative Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 10 – PFA_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 11 – PFA_WB negative -

Wideband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 12 – PFA_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 13 – MAXIB_NB – maximum

narrowband current exceeded on

Outlet 2.

Bit 14 – MAXIB_WB – maximum

wideband current exceeded on

Outlet 2.

If external temperature is 32 °C

)00?<CR>

Returns:

+10.0

If the line frequency is 60 Hz:

)01?<CR>

Returns:

+60.00

Alarms become “1” when

thresholds exceeded.

Note: Additional Status Alert is

Located at addr 0xBD

(see Table 8)

Note: When AC voltage input is

less than or equal to 10 V

• Only MINVA alarm is active.

• All measurements are

forced to 0 except power factor, which is forced to 1.

Note: The frequency

measurement is forced to 0 as

long as the SAG voltage alarm

is active.

RMS

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

total

Output

Irms_nb A

Overcurrent

Event Count

Vrms Under

Voltage

Event Count

Vrms Over

Voltage

Event Count

Vrms A 06 mVrms Vrms voltage.

Location

(hex)

03 1

04 1

05 1

LSB Comment Example

Bit 15 – PFB_NB negative –

Narrowband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 16 – PFB_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 2. Bit 17 – PFB_WB negative –

Wideband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 18– PFB_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 2.

Bit 19 – MAXIT_WB – maximum

total wideband current exceeded on

both Outlet 1 and Outlet 2.

Bit 20 – MAXIT_NB – maximum

narrowband current exc eeded on

both Outlet 1 and Outlet 2.

Bit 21 – CREEP A Alert – Creep

Alert on Outlet 1.

Bit 22 – CREEP B Alert – Creep

Alert on Outlet 2.

Bit 23 – Line/Neutral Reversal

detected. Only available in non-

isolated mode (CESTATE, Bit 2=1)

Bit 24 – Reserved. Bit 25 – Reserved.

Bit 26 – Unexpected Reset.

Bits 27-31 – Reserved.

If four narrowband over current

Counter increments on each edge

event.

Counter increments on each edge

event.

Counter increments on each edge

event.

events have occurred on Outlet 1:

)03?<CR>

Returns: +4

If four under voltage events have

occurred:

)04?<CR>

Returns: +4

If four over voltage events have

occurred:

)05?<CR>

Returns: +4

If the line voltage is 120 V

)06?<CR>

Returns:

+120.000

Rev. 1.0 21

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Location

Output

Watts A 07 mW

Wh A 08 mWh

Total Cost A 09 mUnits Outlet 1 cost of Wh A.

Irms_nb A 0A mArms

VARs_nb A 0B mW

VAs_nb A 0C mW

Power

Factor_nb A

Phase

Angle_nb A

Reserved 0F – Reserved

Vrms A Min 10 mV Minimum Vrms measured.

Vrms A Max 11 mV Maximum Vrms measured.

(hex)

0D –

0E –

LSB Comment Example

Outlet 1 active power

measurement (per second).

Outlet 1 active accumulated energy

measurement (per hour).

Outlet 1 narrowband rms current

measurement.

Outlet 1 narrowband reactive

power measurement (per second).

Outlet 1 narrowband apparent

power measurement (per second).

Outlet 1 narrowband power factor.

The output will be between -0.950

and 1.000. Positive power factor is

defined as current lagging voltage

(inductive). Negative power factor

is defined as voltage lagging

current (capacitive).

Outlet 1 narrowband phase angle.

The output will be between

180.000 and -180.000.

If 120 Watts are measured on

Outlet 1

)07?<CR>

Returns:

+120.000

If 120 Wh are measured on

Outlet 1

)08?<CR>

Returns:

+120.000

If the cost is 102.536 units on

Outlet 1

)09?<CR>

+102.536

If narrowband current measured on

Outlet 1 is 12 Amps

)0A?<CR>

Returns:

+12.000

If narrowband 120 VARs are

measured on Outlet 1

)0B?<CR>

Returns:

+120.000

If narrowband 120 VAs are

measured on Outlet 1

)0C?<CR>

Returns:

+120.000

If the narrowband power factor on

Outlet 1 is 0.95

)0D?<CR>

Returns:

+0.950

If the narrowband phase angle

measured on Outlet 1 is

60 degrees

)0E?<CR>

Returns:

+60.000

Reserved

If the minimum line voltage

measured was 105 V

)10<CR>

Returns:

+15.000

If the maximum line voltage

measured was 130 V

)11<CR>

Returns:

+130.000

22 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

+10.000

Output

Watts A Min 12 mW

Watts A Max 13 mW

Irms_nb A

Min

Irms_nb A

Max

VARs_nb A

Min

VARs_nb A

Max

VAs_nb A

Min

VAs_nb A

Max

Power

Factor_nb A

Min

Power

Factor_nb A

Max

Phase

Angle_nb A

Min

Location

(hex)

14 mArms

15 mArms

16 mW

17 mWs

18 mW

19 mWs

1A –

1B –

1C –

LSB Comment Example

If the minimum power measured on

Minimum Outlet 1 active power

measured (per second).

Maximum Outlet 1 active power

measured (per second).

Outlet 1 minimum narrowband rms

current measured.

Outlet 1 maximum narrowband rms

current measured.

Outlet 1 minimum narrowband reactive power measured (per

second).

Outlet 1 maximum narrowband

reactive power measured (per

second).

Outlet 1 minimum narrowband

apparent power measured (per

second).

Outlet 1 maximum narrowband apparent power measured (per

second).

Outlet 1 minimum narrowband

power factor measured. Minimum

is defined as the most negative or

least positive number.

Outlet 1 maximum narrowband

power factor measured. Maximum

is defined as the most positive or

least negative number.

If the minimum narrowband phase

Outlet 1 minimum narrowband

phase angle measured.

Outlet 1 is 80 Watts

)12?<CR>

Returns:

+80.000

If the maximum power measured

on Outlet 1 is 200 Watts

)13?<CR>

Returns:

+200.000

If the smallest narrowband current

measured on Outlet 1 is 1 Amp

)14?<CR>

Returns:

+1.000

If the largest narrowband current measured on Outlet 1 is 30 Amps

)15?<CR>

Returns:

+30.000

If the largest VARs measured on

Outlet 1 is 80 VARs

)16?<CR>

Returns:

+80.000

If the largest narrowband VARs

measured on Outlet 1 is 300VARs

)17?<CR>

Returns:

+300.000

If the smallest narrowband VAs

measured on Outlet 1 is 80 VARs

)18?<CR>

Returns:

+80.000

If the largest narrowband VAs

measured on Outlet 1 is 300VARs

)19?<CR>

Returns:

+300.000

If minimum narrowband power

factor measured on Outlet 1 is -0.6

)1A?<CR> Returns:

-0.600

If maximum narrowband power

factor measured on Outlet 1 is 0.9

)1B?<CR> Returns:

+0.900

angle measured on Outlet 1 is 10

degrees

)1C?<CR>

Returns:

Rev. 1.0 23

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Location

Outlet 2.

Output

Phase

Angle_nb A

Max

Reserved 1E – Reserved Reserved 1F – Reserved

Location

(hex)

1D –

LSB Comment Example

If the maximum narrowband phase

angle measured on Outlet 1 is 70

Outlet 1 maximum narrowband

phase angle measured.

degrees

)1D?<CR>

Returns:

+70.000

Reserved Reserved

Table 3 list s the wideband measurement outputs for Outlet 1.

Table 3: Outlet 1 MPU Outputs for Wideband Method

Output

Delta

Temperature

Line

Frequency

Alarm Status 22

(hex)

20 0.1 °C

21 0.01 Hz

LSB Comment Example

Temperature difference from 22° C.

Note: Duplicate of address 0x00

(see Table 2)

Line Frequency

Note: Duplicate of address 0x01

(see Table 2)

Definiti on for Status Register

Bit 0 – Minimum Temperature

Alarm.

Bit 1 – Maximum Temperature Alarm.

Bit 2 – Minimum Frequency Alarm.

Bit 3 – Maximum Frequency Alarm.

Bit 4 - SAG Voltage Alarm.

Bit 5 – MINVA – under minimum

voltage on VA input.

Bit 6 – MAXVA – over maximum

voltage on VA input.

Bit 7 – MAXIA_NB – maximum

narrowband current exc eeded on

Outlet 1.

Bit 8 – MAXIA_WB – maximum

wideband current exceeded on

Outlet 1.

Bit 9 – PFA_NB negative –

Narrowband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 10 – PFA_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 11 – PFA_WB negative -

Wideband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 12 – PFA_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 13 – MAXIB_NB – maximum

narrowband current exc eeded on

If external temperature is 32 °C

)20?<CR>

Returns:

+10.0

If the line frequency is 60 Hz:

)21?<CR>

Returns:

+60.00

Alarms become “1” when

thresholds exceeded.

Note: Additional Status Alert is

Located at addr 0xBD (see Table 8)

Note: When AC voltage input is less

than or equal to 10 V

• Only MINVA alarm is active.

• All measurements are forced

to 0 except power factor, which is forced to 1.

Note: The frequency measurement

is forced to 0 as long as the SAG

voltage alarm is active.

RMS

24 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_wb A

Overcurrent

Event Count

Vrms Under

Voltage

Event Count

Vrms Over

Voltage

Event Count

Vrms A 26 mV

Watts A 27 mW

Location

(hex)

LSB Comment Example

Bit 14 – MAXIB_WB – maximum

wideband current exceeded on

Outlet 2.

Bit 15 – PFB_NB negative –

Narrowband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 16 – PFB_NB positive

Narrowband Power Factor Positive

Threshold Alarm for Outlet 2. Bit 17 – PFB_WB negative –

Wideband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 18– PFB_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 2.

Bit 19 – MAXIT_WB – maximum

total wideband current exceeded on

both Outlet 1 and Outlet 2.

Bit 20 – MAXIT_NB – maximum

total narrowband current exceeded

on both Outlet 1 and Outlet 2.

Bit 21 – CREEP A Alert – Creep

Alert on Outlet 1.

Bit 22 – CREEP B Alert – Creep

Alert on Outlet 2.

Bit 23 – Line/Neutral Reversal

detected. Only available in non-

isolated mode (CEST ATE, Bit 2=1)

Bit 24 – Reserved. Bit 25 – Reserved.

Bit 26 – Unexpected Reset.

Bits 27-31 – Reserved.

Note: Duplicate of address 0x02

(see Table 2)

Counter increments on each edge

event.

Counter increments on each edge

event.

Note: Duplicate of address 0x04

(see Table 2).

Counter increments on each edge

event.

Note: Duplicate of address 0x06

(see Table 2).

Vrms voltage

Note: Duplicate of address 0x06

(see Table 2).

Outlet 1 active power

measurement (per second).

Note: Duplicate of address 0x07

(see Table 2).

–

If four wideband over current

events have occurred on Outlet 1:

)23?<CR>

Returns: +4

If four under voltage events have

occurred:

If four over voltage events have

If the line voltage is 120 V

If 120 Watts are measured on

)24?<CR>

Returns: +4

occurred:

)25?<CR>

Returns: +4

)26?<CR>

Returns:

+120.000

Outlet 1

)27?<CR>

Returns:

+120.000

Rev. 1.0 25

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

+12.000

Output

Wh A 28 mWh

Total Cost A 29 mUnits

Irms_wb A 2A mA

VARs_wb A 2B mW

VAs_wb A 2C mW

Power

Factor_wb A

Phase

Angle_wb A

Reserved 2F – Reserved

Vrms A Min 30 mV

Vrms A Max 31 mV

Watts A Min 32 mW

Location

(hex)

2E –

LSB Comment Example

Outlet 1 active accumulated energy

measurement (per hour).

Note: Duplicate of address 0x08

(see Table 2).

Outlet 1 cost of Wh A.

Note: Duplicate of address 0x09

(see Table 2).

Outlet 1 wideband rms current

measurement.

Outlet 1 wideband reactive power

measurement (per second).

Outlet 1 wideband apparent power

measurement (per second).

Outlet 1 wideband power factor.

The output will be between -0.950

and 1.000. Positive power factor is

–

defined as current lagging voltage

(inductive). Negative power factor

is defined as voltage lagging

current (capacitive).

Outlet 1 wideband phase angle.

The output will be between

180.000 and -180.000.

Minimum Vrms measured

Note: Duplicate of address 0x10

(see Table 2).

Maximum Vrms measured

Note: Duplicate of address 0x11

(see Table 2).

Minimum Outlet 1 active power

measured (per second)

Note: Duplicate of address 0x12

(see Table 2)

If 120 Wh are measured on

Outlet 1

)28?<CR>

Returns:

+120.000

If the cost is 102.536 units on

Outlet 1

)29?<CR>

+102.536

If wideband current measured on

Outlet 1 is 12 Amps

)2A?<CR>

Returns:

If wideband 120 VARs are

measured on Outlet 1

)2B?<CR>

Returns:

+120.000

If wideband 120 VAs are measured

on Outlet 1

)2C?<CR>

Returns:

+120.000

If the wideband power factor on

Outlet 1 is 0.95

)2D?<CR>

Returns:

+0.950

If the wideband phase angle

measured on Outlet 1 is 60

degrees

)2E?<CR>

Returns: +60.000

Reserved

If the minimum line voltage

measured was 105 V

)30<CR>

Returns: +15.000

If the maximum line voltage

measured was 130 V

)31<CR>

Returns:

+130.000

If the minimum power measured on

Outlet 1 is 80 Watts

)32?<CR>

Returns: +80.000

26 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Watts A Max 33 mW

Irms_wb A

Min

Irms_wb A

Max

VARs_wb A

Min

VARs_wb A

Max

VAs_wb A

Min

VAs_wb A

Max

Power

Factor_wb A

Min

Power

Factor_wb A

Max

Phase

Angle_wb A

Min

Phase

Angle_wb A

Max

Reserved 3E-3F – Reserved

Location

(hex)

34 mArms

35 mArms

36 mW

37 mW

38 mW

39 mW

3A –

3B –

3D –

LSB Comment Example

Maximum Outlet 1 active power

measured (per second)

Note: Duplicate of address 0x13

(see Table 2).

Outlet 1 minimum wideband rms

current measured.

Outlet 1 maximum wideband rms

current measured.

Outlet 1 minimum wideband

reactive power measured (per

second).

Outlet 1 maximum wideband

reactive power measured (per

second).

Outlet 1 minimum wideband

apparent power measured (per

second).

Outlet 1 maximum wideband

apparent power measured (per

second).

Outlet 1 minimum wideband power

factor measured. Minimum is

defined as the most negative or

least positive number.

Outlet 1 maximum wideband power

factor measured. Max imu m is defined as the most positive or

least negative number.

–

Outlet 1 minimum wideband phase

angle measured.

Outlet 1 maximum wideband phase

angle measured.

If the maximum power measured

on Outlet 1 is 200 Watts

)33?<CR>

Returns:

+200.000

If the smallest wideband current

measured on Outlet 1 is 1 Amp

)34?<CR>

Returns:

+1.000

If the largest wideband current

measured on Outlet 1 is 30 Amps

)35?<CR>

Returns: +30.000

If the largest VARs measured on

Outlet 1 is 80 VARs

)36?<CR>

Returns: +80.000

If the largest VARs measured on

Outlet 1 is 300 VARs

)37?<CR>

Returns:

+300.000

If the smallest VAs measured on

Outlet 1 is 80 VARs

)38?<CR>

Returns: +80.000

If the largest VAs measured on

Outlet 1 is 300 VARs

)39?<CR>

Returns:

+300.000

If minimum wideband power factor

measured on Outlet 1 is –0.6

)3A?<CR> Returns:

-0.600

If maximum wideband power factor

measured on Outlet 1 is 0.9

)3B?<CR> Returns:

+0.900

If the minimum wideband phase

angle measured on Outlet 1 is 10

degrees

)3C?<CR>

Returns: +10.000

If the maximum wideband phase angle measured on Outlet 1 is 70

degrees

)3D?<CR>

Returns: +70.000

Reserved

Rev. 1.0 27

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Temperature difference from 22° C.

Table 4 list s the narrowban d measurem ent outputs for Outlet 2.

Table 4: Outlet 2 MPU Outputs for Narrowband Method

Output

Delta

Temperature

Line

Frequency

Alarm Status 42

Location

(hex)

40 0.1 °C

41 0.01 Hz

LSB Comment Example

Note: Duplicate of address 0x00

(see Table 2).

Line Frequency

Note: Duplicate of address 0x01

(see Table 2).

Definition for Status Register

Bit 0 – Minimum Temperature

Alarm.

Bit 1 – Maximum Temperature

Alarm.

Bit 2 – Minimum Frequency Alarm.

Bit 3 – Maximum Frequency Alarm.

Bit 4 – SAG Voltage Alarm.

Bit 5 – MINVA – under minimum

voltage on VA input.

Bit 6 – MAXVA – over maximum

voltage on VA input.

Bit 7 – MAXIA_NB – maximum

narrowband current exc eeded on

Outlet 1.

Bit 8 – MAXIA_WB – maximum

wideband current exceeded on

Outlet 1.

Bit 9 – PFA_NB negative –

Narrowband Power Factor

Negative Threshold Alarm for

Outlet 1. Only available is )F2 bit 2

is 1.

Bit 10 – PFA_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 1. Bit 11 – PFA_WB negative –

Wideband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 12 – PFA_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 13 – MAXIB_NB – maximum

narrowband current exc eeded on

Outlet 2.

Bit 14 – MAXIB_WB – maximum

wideband current exceeded on

Outlet 2.

Bit 15 – PFB_NB negative –

Narrowband Power Factor

Negative Threshold Alarm for

Outlet 2. Only available is )F2 bit 2

is 1.

If external temperature is 32 °C

)40?<CR>

Returns:

+10.0

If the line frequency is 60 Hz:

)41?<CR>

Returns:

+60.00

Alarms become “1” when

thresholds exceeded.

Note: Additional Status Alert is

Located at addr 0xBD (see Table

8).

Note: When AC voltage input is

less than or equal to 10 V

• Only MINVA alarm is active.

• All measurements are

forced to 0 except power factor, which is forced to 1.

Note: The frequency measurement

is forced to 0 as long as the SAG

voltage alarm is active.

RMS

28 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_nb B

Overcurrent

Event Count

Vrms Under

Voltage

Event Count

Vrms Over

Voltage

Event Count

Vrms A 46 mV

Watts B 47 mW

Wh B 48 mWh

Location

(hex)

LSB Comment Example

Bit 16 – PFB_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 2. Bit 17 – PFB_WB negative –

Wideband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 18– PFB_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 2.

Bit 19 – MAXIT_WB – maximum

total wideband current exceeded on

both Outlet 1 and Outlet 2.

Bit 20 – MAXIT_NB – maximum

total narrowband current exceeded

on both Outlet 1 and Outlet 2.

Bit 21 – CREEP A Alert – Creep

Alert on Outlet 1.

Bit 22 – CREEP B Alert – Creep

Alert on Outlet 2.

Bit 23 – Line/Neutral Reversal

detected. Only available in non-

isolated mode (CEST ATE, Bit 2=1)

Bit 24 – Reserved. Bit 25 – Reserved.

Bit 26 – Unexpected Reset.

Bits 27-31 – Reserved.

Note: Duplicate of address 0x02

Counter increments on each edge

Note: Duplicate of address 0x04

Counter increments on each edge

Note: Duplicate of address 0x06

Outlet 2 active power measurement

Outlet 2 active accumulated energy

measurement (per hour).

(see Table 2).

event.

(see Table 2).

event.

(see Table 2).

Vrms voltage

(see Table 2).

(per second).

If four narrowband over current

events have occurred on Outlet 2:

)43?<CR>

Returns: +4

If four under voltage events have

occurred:

)44?<CR>

Returns: +4

If 4 over voltage events have

occurred:

)45?<CR>

Returns: +4

If the line voltage is 120 V

)46?<CR>

Returns:

+120.000

If 120 Watts are measured on

Outlet 2

)47?<CR>

Returns:

+120.000

If 120 Wh are measured on

Outlet 2

)48?<CR>

Returns:

+120.000

Rev. 1.0 29

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Output

Total Cost B 49 mUnits Outlet 2 cost of Wh B .

Irms_nb B 4A mArms

VARs_nb B 4B mW

VAs_nb B 4C mW

Power

Factor_nb B

Phase

Angle_nb B

Reserved 4F – Reserved

Vrms A Min 50 mV

Vrms A Max 51 mV

Watts B Min 52 mW

Watts B Max 53 mW

Location

(hex)

4D –

4E –

LSB Comment Example

If the total cost is 102.536 units on

Outlet 2

)49?<CR>

+102.536

If narrowband current measured on

Outlet 2 narrowband rms current

measurement.

Outlet 2 narrowband reactive power

measurement (per second).

Outlet 2 narrowband apparent

power measurement (per second).

Outlet 2 narrowband power factor.

The output will be between -0.950

and 1.000. Positive power factor is

defined as current lagging voltage

(inductive). Negative power factor

is defined as voltage lagging

current (capacitive).

Outlet 2 narrowband phase angle.

The output will be between 180.000

and

-180.000.

Minimum Vrms measured

Note: Duplicate of address 0x10

(see Table 2).

Maximum Vrms measured

Note: Duplicate of address 0x11

(see Table 2).

If the minimum power measured on

Minimum Outlet 2 active power

measured (per second).

Maximum Outlet 2 active power

measured (per second).

Outlet 2 is 12 Amps

)4A?<CR>

Returns:

+12.000

If narrowband 120 VARs are

measured on Outlet 2

)4B?<CR>

Returns:

+120.000

If narrowband 120 VAs are

measured on Outlet 2

)4C?<CR>

Returns:

+120.000

If the narrowband power factor on

Outlet 2 is 0.95

)4D?<CR>

Returns:

+0.950

If the narrowband phase angle

measured on Outlet 2 is 60

degrees

)4E?<CR>

Returns:

+60.000

Reserved

If the minimum line voltage

measured was 105 V

)50<CR>

Returns:

+15.000

If the maximum line voltage

measured was 130 V

)51<CR>

Returns:

+130.000

Outlet 2 is 80 Watts

)52?<CR>

Returns:

+80.000

If the maximum power measured

on Outlet 2 is 200 Watts

)53?<CR>

Returns:

+200.000

30 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

–

Output

Irms_nb B

Min

Irms_nb B

Max

VARs_nb B

Min

VARs_nb B

Max

VAs_nb B

Min

VAs_nb B

Max

Power

Factor_nb B

Min

Power

Factor_nb B

Max

Phase

Angle_nb B

Min

Phase

Angle_nb B

Max

Reserved 5E – Reserved Reserved 5F

Location

(hex)

54 mArms

55 mArms

56 mW

57 mW

58 mW

59 mW

5A –

5D –

LSB Comment Example

If the smallest narrowband current

Outlet 2 minimum narrowband rms

current measured.

Outlet 2 maximum narrowband rms

current measured.

Outlet 2 minimum narrowband reactive power measured (per

second).

Outlet 2 maximum narrowband

reactive power measured (per

second).

Outlet 2 minimum narrowband

apparent power measured (per

second)

Outlet 2 maximum narrowband apparent power measured (per

second).

Outlet 2 minimum narrowband

power factor measured. Minimum

is defined as the most negative or

least positive number.

Outlet 2 maximum narrowband

–

power factor measured. Maximum

is defined as the most positive or

least negative number.

Outlet 2 minimum narrowband

phase angle measured.

Outlet 2 maximum narrowband

phase angle measured.

Reserved

measured on Outlet 2 is 1 Amp

)54?<CR>

Returns:

+1.000

If the largest narrowband current measured on Outlet 2 is 30 Amps

)55?<CR>

Returns:

+30.000

If the largest VARs measured on

Outlet 2 is 80 VARs

)56?<CR>

Returns:

+80.000

If the largest narrowband VARs

measured on Outlet 2 is

300 VARs

)57?<CR>

Returns:

+300.000

If the smallest narrowband VAs

measured on Outlet 2 is 80 VARs

)58?<CR>

Returns:

+80.000

If the largest narrowband VAs

measured on Outlet 2 is

300 VARs

)59?<CR>

Returns:

+300.000

If minimum narrowband power

factor measured on Outlet 2 is

-0.6

)5A?<CR> Returns:

-0.600

If maximum narrowband power

factor measured on Outlet 2 is 0.9

)5B?<CR> Returns:

+0.900

If the minimum narrowband phase

angle measured on Outlet 2 is 10

degrees

)5C?<CR>

Returns:

+10.000

If the maximum narrowband phase

angle measured on Outlet 2 is 70

degrees

)5D?<CR>

Returns:

+70.000

Reserved Reserved

Rev. 1.0 31

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Temperature difference from 22° C.

Table 5 lists the wideband measurem ent output s for Outlet 2.

Table 5: Outlet 2 MPU Outputs for Wideband Method

Output

Delta

Temperature

Line

Frequency

Alarm Status 62

Location

(hex)

60 0.1 °C

61 0.01 Hz

LSB Comment Example

Note: Duplicate of address 0x00

Table 2).

(see

Line Frequency

Note: Duplicate of address 0x01

(see Table 2).

Definiti o n for Status Register

Bit 0 – Minimum Temperature

Alarm.

Bit 1 – Maximum Temperature

Alarm.

Bit 2 – Minimum Frequency Alarm.

Bit 3 – Maximum Frequency Alarm.

Bit 4 - SAG Voltage Alarm.

Bit 5 – MINVA – under minimum

voltage on VA input.

Bit 6 – MAXVA – over maximum

voltage on VA input.

Bit 7 – MAXIA_NB – maximum

narrowband current exc eeded on

Outlet 1.

Bit 8 – MAXIA_WB – maximum

wideband current exceeded on

Outlet 1.

Bit 9 – PFA_NB negative –

Narrowband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 10 – PFA_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 11 – PFA_WB negative -

Wideband Power Factor Negative

Threshold Alarm for Outlet 1. Only

available is )F2 bit 2 is 1.

Bit 12 – PFA_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 1.

Bit 13 – MAXIB_NB – maximum

narrowband current exc eeded on

Outlet 2.

Bit 14 – MAXIB_WB – maximum

wideband current exceeded on

Outlet 2.

Bit 15 – PFB_NB negative –

Narrowband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 16 – PFB_NB positive –

Narrowband Power Factor Positive

Threshold Alarm for Outlet 2.

If external temperature is 32 °C

)60?<CR>

Returns:

+10.0

If the line frequency is 60 Hz:

)61?<CR>

Returns:

+60.00

Alarms become “1” when

thresholds exceeded.

Note: Additional Status Alert is

Located at addr 0xBD

(see Table 8).

Note: When AC voltage input is

less than or equal to 10 V

• Only MINVA alarm is active.

• All measurements are forced to 0 except power factor, which is forced to 1.

Note: The frequency

measurement is forced to 0 as

long as the SAG voltage alarm is

active.

RMS

32 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_wb B

Overcurrent

Event Count

Vrms Under

Voltage

Event Count

Vrms Over

Voltage

Event Count

Vrms A 66 mV

Watts B 67 mW

Wh B 68 mWh

Total Cost B 69 mUnits

Location

(hex)

LSB Comment Example

Bit 17 – PFB_WB negative –

Wideband Power Factor Negative

Threshold Alarm for Outlet 2. Only

available is )F2 bit 2 is 1.

Bit 18– PFB_WB positive –

Wideband Power Factor Positive

Threshold Alarm for Outlet 2.

Bit 19 – MAXIT_WB – maximum

total wideband current exceeded on

both Outlet 1 and Outlet 2.

Bit 20 – MAXIT_NB – maximum

total narrowband current exceeded

on both Outlet 1 and Outlet 2.

Bit 21 – CREEP A Alert – Creep

Alert on Outlet 1.

Bit 22 – CREEP B Alert – Creep

Alert on Outlet 2.

Bit 23 – Line/Neutral Reversal

detected. Only available in non-

isolated mode (CEST ATE, Bit 2=1)

Bit 24 – Reserved. Bit 25 – Reserved.

Bit 26 – Unexpected Reset.

Bits 27-31 – Reserved.

Note: Duplicate of address 0x02

Counter increments on each edge

Note: Duplicate of address 0x04

Counter increments on each edge

Note: Duplicate of address 0x06

Outlet 2 active power

measurement (per second)

Note: Duplicate of address 0x47

Outlet 2 active accumulated energy

measurement (per hour)

Note: Duplicate of address 0x48

Outlet 2 cost of Wh B

Note: Duplicate of address 0x49

(see Table 2)

event.

(see Table 2).

event.

(see Table 2).

Vrms voltage

(see Table 2).

(see Table 4).

If four wideband over current

events have occurred on Outlet 2:

)63?<CR>

Returns: +4

If 4 under voltage events have

occurred:

)64?<CR>

Returns: +4

If 4 over voltage events have

occurred:

)65?<CR>

Returns: +4

If the line voltage is 120 V

)66?<CR>

Returns:

+120.000

If 120 Watts are measured on

Outlet 2

)67?<CR>

Returns:

+120.000

If 120 Wh are measured on

Outlet 2

)68?<CR>

Returns:

+120.000

If the total cost is 102.536 units on

Outlet 2

)69?<CR>

+102.536

Rev. 1.0 33

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Output

Irms_wb B 6A mArms

VARs_wb B 6B mW

VAs_wb B 6C mW

Power

Factor_wb B

Phase

Angle_wb B

Reserved 6F – Reserved

Vrms A Min 70 mV

Vrms A Max 71 mV

Watts B Min 72 mW

Watts B Max 73 mW

Irms_wb B

Min

Location

(hex)

6E mDegrees

74 mArms

LSB Comment Example

If wideband current measured on

Outlet 2 wideband rms current

measurement.

Outlet 2 wideband reactive power

measurement (per second).

Outlet 2 wideband apparent power

measurement (per second).

Outlet 2 wideband power factor.

The output will be between -0.950

and 1.000. Positive power factor is

–

defined as current lagging voltage

(inductive). Negative power factor

is defined as voltage lagging

current (capacitive).

Outlet 2 wideband phase angle.

The output will be between

180.000 and -180.000.

Minimum Vrms measured

Note: Duplicate of address 0x10

(see Table 2).

Maximum Vrms measured

Note: Duplicate of address 0x11

(see Table 2).

Minimum Outlet 2 active power

measured (per second)

Note: Duplicate of address 0x52

(see Table 4).

Maximum Outlet 2 active power

measured (per second)

Note: Duplicate of address 0x53

(see Table 4).

Outlet 2 minimum wideband rms

current measured.

Outlet 2 is 12 Amps

)6A?<CR>

Returns: +12.000

If wideband 120 VARs are

measured on Outlet 2

)6B?<CR>

Returns:

+120.000

If wideband 120 VAs are

measured on Outlet 2

)6C?<CR>

Returns:

+120.000

If the wideband power factor on

Outlet 2 is 0.95

)6D?<CR>

Returns:

+0.950

If the wideband phase angle

measured on Outlet 2 is

60 degrees

)6E?<CR>

Returns: +60.000

Reserved

If the minimum line voltage

measured was 105 V

)70<CR>

Returns: +15.000

If the maximum line voltage

measured was 130 V

)71<CR>

Returns:

+130.000

If the minimum power measured

on Outlet 2 is 80 Watts

)72?<CR>

Returns: +80.000

If the maximum power measured

on Outlet 2 is 200 Watts

)73?<CR>

Returns:

+200.000

If the smallest wideband current

measured on Outlet 2 is 1 Amp

)74?<CR>

Returns:

+1.000

34 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_wb B

Max

VARs_wb B

Min

VARs_wb B

Max

VAs_wb B

Min

VAs_wb B

Max

Power

Factor_wb B

Min

Power

Factor_wb B

Max

Phase

Angle_wb B

Min

Phase

Angle_wb B

Max

Reserved 7E Reserved 7F – Reserved

Location

(hex)

75 mArms

76 mW

77 mW

78 mW

79 mW

7B –

7C mDegrees

7D mDegree

LSB Comment Example

If the largest wideband current

Outlet 2 maximum wideband rms

current measured.

Outlet 2 minimum wideband

reactive power measured (per

second).

Outlet 2 maximum wideband

reactive power measured (per

second).

Outlet 2 minimum wideband

apparent power measured (per

second).

Outlet 2 maximum wideband

apparent power measured (per

second).

Outlet 2 minimum wideband power

factor measured. Minimum is

defined as the most negative or

least positive number.

Outlet 2 maximum wideband power

factor measured. Max imu m is defined as the most positive or

least negative number.

Outlet 2 minimum wideband phase

angle measured.

Outlet 2 maximum wideband phase

angle measured.

–

Reserved

measured on Outlet 2 is 30 Amps

)75?<CR>

Returns: +30.000

If the largest VARs measured on

Outlet 2 is 80 VARs

)76?<CR>

Returns: +80.000

If the largest VARs measured on

Outlet 2 is 300 VARs

)77?<CR>

Returns:

+300.000

If the smallest VAs measured on

Outlet 2 is 80 VARs

)78?<CR>

Returns: +80.000

If the largest VAs measured on

Outlet 2 is 300 VARs

)79?<CR>

Returns:

+300.000

If minimum wideband power factor

measured on Outlet 2 is –0.6

)7A?<CR> Returns:

-0.600

If maximum wideband power

factor measured on Outlet 2 is 0.9

)7B?<CR> Returns:

+0.900

If the minimum wideband phase

angle measured on Outlet 2 is

10 degrees

)7C?<CR>

Returns: +10.000

If the maximum wideband phase

angle measured on Outlet 2 is

70 degrees

)7D?<CR>

Returns:

+70.000 Reserved Reserved

Rev. 1.0 35

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

+120.000

Table 6 list s the narrowban d measurem ent outputs for both outlets combined (Outlet 1 + Outlet 2).

Table 6: Combined Outlets MPU Outputs for Narrowband Method

Output

Watts T 80 mW

Wh T 81 mWh

Total Cost T 82 mUnits Total Cost of Wh for both outlets.

Irms_nb T 83 mArms

VARs_nb T 84 mW

VAs_nb T 85 mW

Irms_nb T

Overcurrent

Event

Count

Reserved 87

Watts T Min 88 mW

Watts T

Max

Irms_nb T

Min

Location

(hex)

89 mW

8A mArms

LSB Comment Example

Active power measurement (per

second) on both outlets.

Active acc um ulated energy

measurement (per hour) on both

outlets.

Combined outlet narrowband rms

current measurement.

Combined outlet narrowband

reactive power measurement (per

second).

Combined outlet narrowband

apparent power measurement (per

second).

Counter increments on each edge

event.

–

Minimum combined outlet active

power measured (per second).

Maximum combined active power

Minimum combined outlet

narrowband rms current measured.

Reserved

measured (per second).

If 120 Watts are measured on both

outlets

)80?<CR>

Returns:

If 120 Wh are measured on

Outlet 2

)81?<CR>

Returns:

+120.000

If the total cost is 102.536 units on

both outlets

)82?<CR>

+102.536

If narrowband current measured on

both outlets is 12 Amps

)83?<CR>

Returns: +12.000

If narrowband 120 VARs are

measured on both outlets

)84?<CR>

Returns:

+120.000

If narrowband 120 VAs are

measured on both outlets

)85?<CR>

Returns:

+120.000

If four narrowband over current

events have occurred on Outlet 1

and Outlet 2:

)86?<CR>

Returns:

Reserved

If the minimum power measured on

both outlets is 80 Watts

)88?<CR>

Returns: +80.000

If the maximum power measured

on both outlets is 200 Watts

)89?<CR>

Returns:

+200.000

If the smallest narrowband current measured on both outlets is 1 Amp

)8A?<CR>

Returns:

+1.000

36 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_nb T

Max

VARs_nb T

Min

VARs_nb T

Max

VAs_nb T

Min

VAs_nb T

Max

Location

(hex)

8B mArms

8C mW

8D mW

8E mW

8F mW

LSB Comment Example

If the largest narrowband current

measured on both outlets is 30

Maximum co mbined outlet

narrowband rms current measured.

Minimum combined outlet

narrowband reactive power

measured (per second).

Maximum combined outlet

narrowband reactive power

measured (per second).

Minimum combined outlet

narrowband apparent power

measured (per second).

Maximum co mbined outlet

narrowband apparent power

measured (per second).

If the largest narrowband VARs

measured on both outlets is 80

If the largest narrowband VARs

measured on both outlets is 300

If the smallest narrowband VAs

measured on both outlets is 80

If the largest narrowband VAs

measured on both outlets is 300

Amps

)8B?<CR>

Returns: +30.000

VARs

)8C?<CR>

Returns: +80.000

VARs

)8D?<CR>

Returns:

+300.000

VARs

)8E?<CR>

Returns: +80.000

VARs

)8F?<CR>

Returns:

+300.000

Rev. 1.0 37

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

+120.000

Table 7 lists the wideband measurement outputs for both outlets combined (O utl e t 1 + Outl e t 2).

Table 7: Combined Outlets M PU Outputs for Wideband Method

Output

Watts T 90 mW

Wh T 91 mWh

Total Cost T 92 mUnits

Irms_wb T 93 mArms

VARs_wb T 94 mW

VAs_wb T 95 mW

Irms_wb T

Overcurrent

Event

Count

Reserved 97

Watts T Min 98 mW

Watts T

Max

Irms_wb T

Min

Location

(hex)

99 mW

9A mArms

LSB Comment Example

–

Active power measurement (per

second) on both outlets.

Note: Duplicate of address 0x80

(see Table 6).

Active accumulated energy

measurement (per hour) on both

outlets.

Note: Duplicate of address 0x81

(see Table 6).

Total Cost of Wh for both outlets.

Note: Duplicate of address 0x82

(see Table 6).

Combined outlet wideband rms

current measurement.

Combined outlet wideband reactive

power measurement (per second).

Combined outlet wideband

apparent power measurement (per

second).

Counter increments on each edge

event.

Reserved

Minimum combined outlet active

power measured (per second)

Note: Duplicate of address 0x88

(see Table 6).

Maximum combined outlet active

power measured (per second)

Note: Duplicate of address 0x89

(see Table 6).

Minimum combined outlet

wideband rms current measured.

If 120 Watts are measured on both

outlets

)90?<CR>

Returns:

If 120 Wh are measured on

Outlet 2

)91?<CR>

Returns:

+120.000

If the total cost is 102.536 units on

both outlets

)92?<CR>

+102.536

If wideband current measured on

both outlets is 12 Amps

)93?<CR>

Returns: +12.000

If wideband 120 VARs are

measured on both outlets

)94?<CR>

Returns:

+120.000

If wideband 120 VAs are measured

on both outlets

)95?<CR>

Returns:

+120.000

If four wideband over current

events have occurred on Outlet 1

and Outlet 2:

)96?<CR>

Returns:

Reserved

If the minimum power measured on

both outlets is 80 Watts

)98?<CR>

Returns: +80.000

If the maximum power measured

on both outlets is 200 Watts

)99?<CR>

Returns:

+200.000

If the smallest wideband current

measured on both outlets is 1 Amp

)9A?<CR>

Returns:

+1.000

38 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Output

Irms_wb T

Max

VARs_wb T

Min

VARs_wb T

Max

VAs_wb T

Min

VAs_wb T

Max

Location

(hex)

9B mArms

9C mW

9D mW

9E mW

9F mW

LSB Comment Example

If the largest wideband current measured on both outlets is 30

Maximum co mbined outlet

wideband rms current measured.

Minimum combined outlet

wideband reactive power

measured (per second).

Maximum co mbined outlet

wideband reactive power

measured (per second).

Minimum combined outlet

wideband apparent power

measured (per second).

Maximum co mbined outlet

wideband apparent power

measured (per second).

If the largest VARs measured on

both outlets is 80 VARs

If the largest VARs measured on

both outlets is 300 VARs

If the smallest VAs measured on

both outlets is 80 VARs

If the largest VAs measured on

both outlets is 300 VARs

Amps

)9B?<CR>

Returns: +30.000

)9C?<CR>

Returns: +80.000

)9D?<CR>

Returns:

+300.000

)9E?<CR>

Returns: +80.000

)9F?<CR>

Returns:

+300.000

Rev. 1.0 39

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

6 Configuration Parameter Entry

6.1 MPU Param eters

Table 8 l i sts the MPU parameters configurable by Fir mware 6612_OMU _S2+2_URT_V1_14.

Table 8: MPU Par ameters

MPU

Parameter

VMAX A A0 mVrms +471.500

Starting IA A1 mArms +0.007

IMAX A A2 mArms +52.000

Starting IB A3 mArms +0.007

IMAX B A4 mArms +52.000

Unused A5 – – Unused

Location

(hex)

LSB Default Comment Example

External rms voltage corresponding to 250 mVpk at the VA input of the 78M6612. It must be set high enough to account for

overvoltages. Usually set to

471.500 V (471.500d).

Minimum current value to be

measured on the IA input.

Currents below this value will be

ignored. Also known as CREEP

IA.

External rms current corresponding to 250 mVpk at the

IA input of the 78M6612.

Minimum current value to be

measured on the IB input. Currents below this value will be ignored. Also known as CREEP

External rms current

corresponding to 250 mVpk at the

IB input of the 78M6612.

If only using a 120V system, the user can set VMAX A to about 2x the

maximum voltage for added

resolution. Set VMAX A to

270V:

)A0=+270.000<CR>

Default setting is 7 mA. If start current on channel A

desired is 10 mA:

)A1=+0.010<CR>

The default is set to 52

Amps for overhead. For added margin, in a system using current shunts IMAX

could be changed as

follows:

IMAX= (Vpk/√2)/R

For a 4 mΩ current shunt

IMAX=44.19 Amps

To set IMAX A:

)A2=+44.190<CR>

Default setting is 7 mA. If start current on channel B

desired is 10 mA:

)A3=+0.010<CR>

The default is set to 52

Amps for overhead. For added margin, in a system using current shunts IMAX

could be changed as

follows:

IMAX= (Vpk/√2)/R

For a 4 mΩ current shunt

IMAX=44.19 Amps )A4=+44.190<CR>

shunt

40 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Parameter given in relay

entered in )AE.

If the user desires 8 ms of

Parameter given in relay

entered in )AF.

If the user desires 8 ms of

MPU

Parameter

Temperature

Nominal

Reserved A7 – Reserved

PPMC A8 ppm/°C -668 ppm per °C.

PPMC2 A9

Cost/kWh AA mUnits +0.150

Units of Cost AB N/A USD

Relay

Configuration

Sequence

Delay

Location

(hex)

LSB Default Comment Example

Temp_raw_x reading at 22 °C.

A6 – +0

Needed to enable temperature

compensation.

ppm/°C

-341

ADC temperature compensation

ppm per °C

Cost per kWh (kilowatt hour) in

milliunits.

4-byte string describing unit of

cost

(e.g. USD, EURO etc.). There

must be 4 characters. If entering

US dollars, USD, there needs to

be a space after the D to make it a

four character string.

Bit 1 (Relay Polarity)

0 = Normal Polarity

AC – 0

1 = Inverted Polarity

Bit 0 (Relay Type)

0 = non-latched

1 = latched

AD 0.1s +0.1 Time delay between relays.

Temp _raw_x is obtained

from the CE:

]71?<CR>

This value is then entered

here:

)A6=+value in decimal

Also, the command:

>CLT<CR>

Will do the same as the

steps above.

Do not change the default

setting.

Do not change the default

setting.

If the cost per kWh is to be

10 units:

)AD=+10.000<CR>

To enter US Dollars:

)AB=”USD “<CR>

To enter Euros:

)AB=”EURO”<CR>

If the user desires a 1

second delay between the

closing of the first and

second relays and also a one second delay between the opening of the first and

second relays, then enter

the following:

>)AD=+1<CR>

Energize

Delay

De-Energize

Delay

Reserved B0 - BC ppb 0 Reserved Reserved

Rev. 1.0 41

AE ms +0.000

AF ms +0.000

manufacturer’s data sheet is entered here. The amount of delay will be 1 ms plus the value

delay then enter the following: >)AE=+0.007<CR>

delay then enter the following: >)AF=+0.007<CR>

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

–

MPU

Parameter

Additional

Status

Unused BE

Tolerance on

Phase

Reserved C0 – 0 Reserved Reserved

Calibration

Voltage

Calibration

Current

Calibration

Phase

Tolerance on

Voltage

Tolerance on

Current

Average

Count for

Voltage

Average

Count for

Current

Location

(hex)

BD – 1

C1 mVrms +120.000

C2 mArms +1.000

C3 0.1° +0

C4 mVrms +0.010

C5 mArms +0.010

C6 1 +3

C7 1 +3

LSB Default Comment Example

0.001°

0.100°

Bit 0 – Reserved.

Bit 1 – WPULSE Disable.

Bit 2 – VCal Failure.

Bit 3 – ICal1 Failure.

Bit 4 – WCal1 Failure.

Bit 5 – ICal2 Failure

Bit 6 – WCal2 Failure

If the tolerance to the target

Measured value to fall within this

set tolerance of the target value

(Calibration Current entry) for the

calibration to be complete.

Target line voltage (rms) used for

calibration.

Target load current (rms) used for

calibration.

Target Phase (voltage to current).

Normally set to zero.

Measured value to fall within this

set tolerance of the target value

(Calibration Voltage entry) for the

calibration to be complete.

Measured value to fall within this

set tolerance of the target value

(Calibration Current entry) for the

calibration to be complete.

Number of voltage measurements

taken and averaged to be

compared to the target value

(Calibration Voltage entry).

Number of current measure ments

taken and averaged to be

compared to the target value

(Calibration Current entry).

phase is desired to be more

coarse, to within 0.5°, the

user can enter the

following:

>)BF=+0.500<CR>

If the target line voltage for

calibration is 220V, enter

the following:

>)C1=+220<CR>

If the target load current for

calibration is 2A, enter the

following:

>)C2=+2<CR>

If the tolerance to the target

voltage is desired to be

more coarse, to within

0.1V, the user can enter the following:

>)C4=+0.100<CR>

If the tolerance to the target

current is desired to be

more coarse, to within

0.1A, the user can enter the following:

>)C5=+0.100<CR>

If the amount of averaging

for the voltage

measurement is desired to

increase to 10 enter the

following:

>)C6=+10<CR>

If the amount of averaging

for the current

measurement is desired to

increase to 10 enter the

following:

>)C7=+10<CR>

42 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

MPU

Parameter

Max Iteration

for Voltage

Max Iteration

for Current

Tolerance on

Watts

Average

Count for

Watts

Max Iteration

for Watts

Calibration

WRATE

Calibration

Temperature

Calibration

Watts

Temp Alarm

Min Threshold

Location

(hex)

C8 1 +10

C9 1 +10

CA mW +0.010

CB 1 +3

CC 1 +10

CD 1 +20732

CF mW 120.000 Target Watts used for calibration.

D0 0.1°C +0.0°C

LSB Default Comment Example

Number of attempts to reach the target value (Calibration Voltage

entry) within the programmed

tolerance.

Number of attempts to reach the target value (Calibration Voltage

entry) within the programmed

tolerance.

Measured value to fall within this

set tolerance of the target value

(Calibration Voltage multiplied by

the calibration current entries) for

the calibration to be complete.

Measured value to fall within this

set tolerance of the target value

(Calibration Voltage multiplied by

the calibration current entries) for

the calibration to be complete.

Number of attempts to reach the target value (Calibration Voltage

multiplied by the calibration

current entries) within the

programmed tolerance.

Entry for WRATE during the

calibration step only. After

calibration, WRATE returns to the

value entered in ]0F.

0.1°C

+22.0

Target nominal temperature for

calibration.

Minimum Temperature Alarm

Threshold. A temperature below

this threshold will set the alarm

(bit 0 of the Alarm Status

If maximum number of

iterations to be tried for

obtaining the target value of

voltage within the set

tolerance (at C4) is to be

reduced to 5, then enter:

>)C8=+5<CR>

If maximum number of

iterations to be tried for

obtaining the target value of

power within the set

tolerance (at C5) is to be

reduced to 5, then enter:

>)C9=+5<CR>

If the tolerance to the target power is desired to be more

coarse, to within 0.1W, the

user can enter the

following:

>)CA=+0.100<CR>

If the amount of averaging

for the power measurement

is desired to increase to 10

enter the following:

>)CB=+10<CR>

If maximum number of

iterations to be tried for

obtaining the target value of

power within the set

tolerance (at CA) is to be

reduced to 5, then enter:

>)CC=+5<CR>

If the user desires the

target nominal temperature

to be 25°C, then set as

follows:

>)CE=+25.0<CR>

If the target Watts for

calibration is 240, enter the

following:

>)CF=+240.000<CR>

If the minimum temperature threshold is to be change to

10°C then set as follows:

>)D0=+10.0

Rev. 1.0 43

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

If the peak narrowband

If the peak wideband

MPU

Parameter

Temp Alarm

Max

Threshold

Frequency

Minimum

Threshold

Frequency

Maximum

Threshold

SAG Voltage

Alarm

Threshold

Min Voltage

Alarm

Threshold

Peak Voltage

Alarm

Threshold

Unused D7 –

Location

(hex)

D1 0.1°C +70°C

D2 0.01Hz +59.00

D3 0.01Hz +61.00

D4 mVpk +80.0

D5 mVrms +100.000

D6 mVrms +140.000

LSB Default Comment Example

Maximum Temperature Alarm

Threshold. A temperature above

this threshold will set the alarm

(bit 1 of the Alarm Status

Minimum Frequency Alarm

Threshold. A frequency below

this threshold will set the alarm

(bit 2 of the Alarm Status

Maximum Frequency Alarm

Threshold. A frequency above

this threshold will set the alarm

(bit 3 of the Alarm Status

Sets an alarm (bit 4 of the Alarm Status Register) if voltage drops

below the SAG threshold.

Minimum voltage level selected to

flag user (bit 5 of the Alarm Status

Peak voltage setting that user

wishes to flag (bit 6 of the Alarm

Status Register).

If the maximum

temperature threshold is to

be change to 50°C then set

as follows:

>)D1=+50.0

If the minimum frequency

threshold is to be changed

to 59.50 Hz then enter the

following:

>)D2=+59.50

If the maximum frequency

threshold is to be changed

to 60.50 Hz then enter the

following:

>)D2=+60.50

To change the minimum voltage threshold from the 40 Volt default to 80 Volts:

)D5=+80.000<CR>

To change the peak voltage

threshold from the default

407.3 Volts to 280 Volts: )D6=+280.000<CR>

Peak IA_nb

Alarm

Threshold

Peak IA_wb

Alarm

Threshold

PFA_nb_Neg

Threshold

44 Rev. 1.0

D8 mArms +15.000

D9 mArms +15.000

DA – -0.700

Maximum Narrowband Current

measured on the IA channel

above which a flag must set (bit 7

of the Alarm Status Register).

Maximum Wideband Current

measured on the IA channel

above which a flag must set (bit 8

of the Alarm Status Register).

Narrowband Power Factor

Negative Threshold for Outlet 1.

A less negative narrowband

power factor than this threshold

will set an alarm (bit 9 of the

Alarm Status Register). Only

available if )F2 bit 2 is set to 1.

current threshold on Outlet 1 is to be changed from the default value of 15 Amps to

30 Amps then set as

follows:

)D8=+30.000<CR>

current threshold on Outlet 1 is to be changed from the default value of 15 Amps to

30 Amps then set as

follows:

)D9=+30.000<CR>

If the negative narrowband

power factor threshold on

Outlet 1 is to be changed

from the default to -0.6 then

set as follows:

)DA=-0.600<CR>

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

If the peak narrowband

If the peak wideband

MPU

Parameter

PFA_nb_Pos

Threshold

PFA_wb_Neg

Threshold

PFA_wb_Pos

Threshold

Location

(hex)

DB – +0.700

DC – -0.700

DD – +0.700

LSB Default Comment Example

Narrowband Power Factor

Positive Threshold for Outlet 1. A

narrowband power factor less

than this threshold will set an

alarm (bit 10 of the Alarm Status

Wideband Power Factor Negative

Threshold for Outlet 1. A less

negative wideband power factor

than this threshold will set an

alarm (bit 11 of the Alarm Status

2 is set to 1.

Wideband Power Factor Positive

Threshold for Outlet 1. A positive

wideband power factor less than

this threshold will set an alarm (bit

12 of the Alarm Status Register).

If the positive narrowband power factor threshold on

Outlet 1 is to be changed

from the default to +0.600

then set as follows:

)DB=+0.600<CR>

If the negative wideband

power factor threshold on

Outlet 1 is to be changed

from the default to -0.6 then

set as follows:

)DC=-0.600<CR>

If the positive wideband

power factor threshold on

Outlet 1 is to be changed

from the default to +0.6

then set as follows:

)DD=+0.600<CR>

Peak IB_nb

Alarm

Threshold

Peak IB_wb

Alarm

Threshold

PFB_nb_Neg

Threshold

PFB_nb_Pos

Threshold

DE mArms +15.000

DF mArms +15.000

E0 – -0.700

–

+0.700

Maximum Narrowband Current

measured on the IB channel

above which a flag must set (bit

13 of the Alarm Status Register).

Maximum Wideband Current

measured on the IB channel

above which a flag must set (bit

14 of the Alarm Status Register).

Narrowband Power Factor

Negative Threshold for Outlet 2.

A less negative narrowband

power factor than this threshold

will set an alarm (bit 15 of the

Alarm Status Register). Only

available if )F2 bit 2 is set to 1.

Narrowband Power Factor

Positive Threshold for Outlet 2. A

narrowband power factor less

than this threshold will set an

alarm (bit 16 of the Alarm Status

current threshold on Outlet 2 is to be changed from the default value of 15 Amps to

30 Amps then set as

follows:

)DE=+30.000<CR>

current threshold on Outlet 2 is to be changed from the default value of 15 Amps to

30 Amps then set as

follows:

)DF=+30.000<CR>

If the negative narrowband

power factor threshold on

Outlet 2 is to be changed

from the default to -0.6 then

set as follows:

)E0=-0.600<CR>

If the positive narrowband power factor threshold on

Outlet 2 is to be changed

from the default to +0.600

then set as follows:

)E1=+0.600<CR>

Rev. 1.0 45

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

MPU

Parameter

PFB_wb_Neg

Threshold

PFB_wb_Pos

Threshold

Peak I

Total_nb

Alarm

Threshold

Peak I

Total_wb

Alarm

Threshold

Alarm

Mask_Reg

Alarm

Mask_DIO

Control Relay F0

Min/Max

Control

Location

(hex)

E2 – -0.700

E3 – +0.700

E4 mArms +20.000

E5 mArms +20.000

F1 – 0

LSB Default Comment Example

–

00801FFF

Wideband Power Factor Negative

Threshold for Outlet 2. A less

negative wideband power factor

than this threshold will set an

alarm (bit 17 of the Alarm Status

2 is set to 1.

Wideband Power Factor Positive

Threshold for Outlet 2. A positive

wideband power factor less than

this threshold will set an alarm (bit

18 of the Alarm Status Register).

Maximum Narrowband Current

measured on Outlet 1 plus Outlet

2 above which a flag must be set

(bit 19 of the Alarm Status

Maximum Wideband Current

measured on Outlet 1 plus Outlet

2 above which a flag must be set

(bit 20 of the Alarm Status

Alarm mask for bits in the Alarm

Status register. A “0” masks the

alarm from the register bit.

Alarm mask for an alarm pin

(DIO20). A “0” masks the alarm

from DIO20

Bit 1 (Relay for Outlet 2)

0 = DIO19 = 0

1 = DIO19 =1

Bit 0 (Relay for Outlet 1)

0 = DIO7 = 0 1 = DIO7 = 1

Note: AC[1] = 1 inverts the bits

above.

BIT1 – 1 Start/Stop MIN/MAX recording.

1 = Start 0 = Stop BIT0 – 1 Reset MIN/MAX

registers before recording. Bit autoclears.

If the negative wideband

power factor threshold on

Outlet 2 is to be changed

from the default to -0.6 then

set as follows:

)E2=-0.600<CR>

If the positive wideband

power factor threshold on

Outlet 2 is to be changed

from the default to +0.6

then set as follows:

)E3=+0.600<CR>

If the narrowband peak

current threshold on Outlet

1 plus Outlet 2 is to be

changed from the default

value of 20 Amps to 30

Amps then set as follows:

)E4=+30.000<CR>

If the wideband peak

current threshold on Outlet

1 plus Outlet 2 is to be

changed from the default

value of 20 Amps to 30

Amps then set as follows:

)E5=+30.000<CR>

If bits 0 and 1 are to be

masked then set as follows:

>)E6=FFFFFFFC

Reset & Start MIN/MAX

recording.

)AC=11<CR>

Stop MIN/MAX recording

)AC=0x<CR>

46 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

MPU

Parameter

Clear Control

and Power

Factor Polarity

Location

(hex)

F2 – 0

LSB Default Comment Example

Clear Control and Power Factor Polarity Register:

Bit 2 – Power Factor Polarity 0 = Power Factor is

positive only. Negative alarm thresholds and alarms are not enabled.

1 = Power factor can be positive or negative.

Bit1 – Clears Counts Bit 0 – Clears Accumulators.

Rev. 1.0 47

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

6.2 CE Parameters

Table 9 l i sts the C E param eters that the Firmware 6612_OMU_S2+2_URT_V1_14 has set. The user does not need to alter any o f thes e parameters as they are au tomatically set by Cal ibration Commands .

Table 9: CE Parameters

Parameter

CAL IA 08

CAL IB 09

CAL VA 0A

CAL VB 0B

PHASE_

ADJ_IA

PHASE_

ADJ_IB

Location(

hex)

LSB Default Comment Example

If current on channel A is low by 1%

16384 is

the default

and is a

gain of 1.

32767 is

max giving

a gain of

16384 is

the default

and is a

gain of 1.

32767 is

max giving

a gain of

16384 is

the default

and is a

gain of 1.

32767 is

max giving

a gain of

16384 is

the default

and is a

gain of 1.

32767 is

max giving

a gain of

-16384 ≤ PHASE_A DJ_IA ≤ +16384

-16384 ≤ PHASE_A DJ_IB ≤ +16384

+13873

+13024

Gain constant for

IA input.

Gain constant for

IB input.

Gain constant for

VA input.

Gain constant for

VB input.

Outlet 1 Phase

adjustment =15 *

PHASE_ADJ_IA *

-14

(degrees)

Outlet 2 Phase

adjustment =15 *

PHASE_ADJ_IB *

-14

(degrees)

scale the nominal number, 16384 by

1/(1-0.01). Number to be entered would

be 16549:

]08=+16549<CR>

If current on channel A is high by 1%

scale the nominal number, 16384 by

1/(1+0.01). Number to be entered

would be 16222:

]08=+16222<CR>

If current on channel B is low by 1%

scale the nominal number, 16384 by

1/(1-0.01). Number to be entered would

be 16549:

]09=+16549<CR>

If current on channel A is high by 1%

scale the nominal number, 16384 by

1/(1+0.01). Number to be entered

would be 16222:

]09=+16222<CR>

If voltage on channel A is low by 1% scale the nominal number, 16384 by

1/(1-0.01). Number to be entered would

be 16549:

]0A=+16549<CR>

If current on channel A is high by 1%

scale the nominal number, 16384 by

1/(1+0.01). Number to be entered

would be 16222:

]0A=+16222<CR>

If voltage on channel B is low by 1% scale the nominal number, 16384 by

1/(1-0.01). Number to be entered would

be 16549:

]0B=+16549<CR>

If current on channel A is high by 1%

scale the nominal number, 16384 by

1/(1+0.01). Number to be entered

would be 16222:

]0B=+16222<CR>

No adjustment should be necessary

when using current shunts.

No adjustment should be necessary

when using current shunts.

48 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Parameter

CESTATE 0E 5005h

WRATE 0F

Reserved 10 Reserved

SAG

Threshold

Location(

hex)

LSB Default Comment Example

Kh =

VMAX A *

IMAX A /

(WRATE *

1.6826E+0 1 WattSec

VMAX A

*4.2551E-

07 (Vpk)

+4860

+313350

SAG CNT

Bits 15:8 –

determines the

consecutive voltage

sampl es below

SAG_Threshold before a sag alarm is declared. 255 is

the maximum

value.

Pulse Selection

(PULSEL)

Bit 4

0 – chooses Outlet

1 (IA input) for

pulse generation

1 – chooses Outlet

2 (IB input) for

pulse generation.

Reserved

Bit 3

Voltage Sensor

Configuration

Bit 2

0 – Isolated mode

uses VA-VB for

Voltage

1 – Non-isolated

mode uses VA for

voltage; V3P3 must

be tied to NTRL;

VB can be tied to

EGND fo r reversal

detection

Pulse gain factor

Bits 1 and 0

00 – 6x

01 – (6/64)x

10 – 96x

11 – 1.5x

Controls the

number of pulses

that are generated

per measured Wh

and VARh

measurements.

The voltage

threshold for SAG

warnings. The

default value is 80

Vpk if VMAX = 600

Selects at least 80 (50h) consecutive

voltage samples below SAG_Threshold

Select Outlet 1 as pulse source.

Selects VA (non-isolated mode) for

Voltage of both Outlets 1 and 2

Selects Pulse Gain Factor equal to 6/64

Kh = 0.32 * Wh / pulse with X = 6/64,

]0E=5005

before SAG alarm.

]0F=+4860

VMAX =600 V

IMAX = 52 A

]11=+313350

80 Vpk SAG Threshold.

and

Rev. 1.0 49

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Parameter

QUANTA 12

QUANTB 13

QUANT

VAR A

QUANT

VAR B

QUANT IA 16

QUANT I B 17

Reserved 18 – – Reserved

Location(

hex)

LSB Default Comment Example

Compensation

added to the Watt

VMAX A *

IMAX A *

1.8541E-

10 (Watt)

VMAX A *

IMAX B *

1.8541E-

10 (Watt)

VMAX A *

IMAX A *

1.8541E10 (Watt)

VMAX A *

IMAX B *

1.8541E10 (Watt)

(IMAX A)2 *

4.6351E-11 (A2)

(IMAX B)2 *

4.6351E-11

(A2)

calculation for

Outlet 1. Used for

compensation at

low current levels.

Keep below

10000d.

Compensation

added to the Watt

calculation for

Outlet 2. Used for

compensation at

low current levels.

Keep below

10000d.

Compensation

added to the VAR

calculation for

Outlet 1. Used for

compensation at

low current levels.

Keep below

10000d.

Compensation

added to the VAR

calculation for

Outlet 2. Used for

compensation at

low current levels.

Keep below

10000d.

IA input

compensation

added for input

noise and

truncation in the

squaring

calculation for I2.

Used for

compensation at

low current levels.

Keep below

10000d.

IA input

compensation

added for input

noise and

truncation in the

squaring

calculation for I2.

Used for

compensation at

low current levels.

Keep below

10000d.

Reserved

50 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Parameter

Gain Adjust 19

Reserved 1A – – Reserved Reserved Reserved 1B – – Reserved Reserved

Location(

hex)

LSB Default Comment Example

To increase all channels equally by 1%

scale the nominal number, 16384 by

1/(1-0.01). Number to be entered would

16384 is

the default

and is a

gain of 1.

+16384

32767 is max

giving a

gain of 2.

To decrease all channels 1% scale the

nominal number, 16384 by 1/(1+0.01).

Number to be entered would be 16222:

be 16549:

]19=+16549<CR>

]19=+16222<CR>

Rev. 1.0 51

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

7 Address Content Summary

If the color s hading is the same, th e i nform ation i n the table cells is the same betwe en nar r owband and wideband measurem ents. Note that Outlet 1 = channel A and Outlet 2 = channel B.

Table 10: MPU Output Summary Chart

Outlet 1 Address Narrowband Address Wideband

Common Data 00 Delta Temp 20 Delta Temp

01 Line Frequency 21 Line Frequency 02 Al ar m S t atus 22 Alarm Stat us 03 Over Current Event Count 23 Over Current Event Count 04 U nder Voltage Ev e nt Cou nt 24 U nder Voltage Ev e nt Count 05 Over Voltage Event Count 25 Over Voltage Event Count 06 Volts 26 Volts

Common, Outlet 1 Specific Data

Tier 1, Outlet 1 Specific Data

Tier 2, Outlet 1 Specific Min/Max Data

07 Watts (A) 27 Watts (A) 08 Energy (A) 28 Energy (A) 09 Cost (A) 29 Cost (A) 0A Current (A) 2A Current (A)

0B VAR (A) 2B VAR (A) 0C VA (A) 2C VA (A) 0D Power Factor (A) 2D Power Factor (A)

0E Phase (A) 2E Phase (A)

0F (R eser ved for F u t ure) 2F (Reser ved for F u t ure)

10 Vrms Min 30 Vrms Min

11 Vrms Max 31 Vrms Max

12 Watts Min (A) 32 Watts Min (A)

13 Watts Max (A) 33 Watts Max (A)

14 Current Min (A) 34 Current Min (A)

15 Current Max (A) 35 Current Max (A)

16 VAR Min (A) 36 VAR Min (A)

17 VAR Max (A) 37 VAR Max (A)

18 VA Min (A) 38 VA Min (A)

19 VA Max (A) 39 VA Max (A)

1A Power Factor Min (A) 3A Power Factor Min (A)

1B Power Factor Max (A) 3B Power Factor Max (A) 1C Phase Min (A) 3C Phase Min (A) 1D P h ase Ma x( A) 3D Phase Max(A)

1E (Res er v ed f or Future) 3E (R eserv ed for F u t ure)

1F (R eser ved for F u t ure) 3F (Reser ved for F u t ure)

52 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Outlet 2 Narrowband Wideband

Common Data 40 Delta Temp 60 Delta Temp

41 Frequency 61 Frequency

42 Al ar m S t atus 62 Alarm Stat us

43 Over Current Event Count 63 Over Current Event Count

44 Voltage SAG Ev ent Count 64 Voltage SAG Event Count

45 Over Voltage Event Count 65 Over Voltage Event Count

46 Volts 66 Volts

Common, Outlet 2 Specific Data

Tier 1, Outlet 2 Specific Data

Tier 2, Outlet 2 Specific Max/Min Data

47 Watts (B) 67 Watts (B)

48 Energy (B) 68 Energy (B)

49 Cost (B) 69 Cost (B)

4A Current (B) 6A Current (B)

4B VAR (B) 6B VAR (B) 4C VA (B) 6C VA (B) 4D Power Factor (B) 6D Power Factor (B)

4E Phase (B) 6E Phase (B)

4F (R eser ved for F u t ure) 6F (Reser ved for F u t ure)

50 Vrms Min 70 Vrms Min

51 Vrms Max 71 Vrms Max

52 Watts Min (B) 72 Watts Min (B)

53 Watts Max (B) 73 Watts Max (B)

54 Current Min (B) 74 Current Min (B)

55 Current Max (B) 75 Current Max (B)

56 VAR Min (B) 76 VAR Min (B)

57 VAR Max (B) 77 VAR Max (B)

58 VA Min (B) 78 VA Min (B)

59 VA Max (B) 79 VA Max (B)

5A Power Factor Min (B) 7A Power Factor Min (B)

5B Power Factor Max (B) 7B Power Factor Max (B) 5C Phase Min (B) 7C Phase Min (B) 5D Phase Max (B) 7D Phase Max (B)

5E (Res er v ed f or Future) 7E (R eserv ed for F u t ure)

5F (R eser ved for F u t ure) 7F ( R eserv ed for F u t ure)

Rev. 1.0 53

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Totals of Multiple

Outlets

Common Total Data 80 Total Watts 90 Total Watts

Ban dw i dth Spec ific Totals

Common Total Max/Min Data

Ban dw i dth Spec ific Total Max/Min Data

Narrowband Wideband

81 T otal En er gy 91 T otal Energy

82 Total Cost 92 Total Cost

83 Total Current 93 Total Current

84 T otal VAR s 94 Total VA R s

85 T otal VA' s 95 Tot al VA 's

86 T otal Ov er C ur r e nt Cou nt 96 Tot al O ver C ur r ent C ou nt

87 ( R eserv ed for Fu ture) 97 (Reserv ed for Fu ture)

88 Total Watts Min 98 Total Watts Min

89 Total Watts Max 99 Total Watts Max

8B Total Current Max 9B Total Current Max 8C T otal VAR Mi n 9C Tot al V AR Min 8D T otal VAR Ma x 9D Tot al VAR Ma x

8E Total VA Min 9E Total VA Min

8F Total VA Max 9F Total VA Max

Total Current Min 9A Total Current Min

54 Rev. 1.0

UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

Table 11: MPU Input Summary Chart

Voltage A0 Vmax

Current - Outlet 1 A1 Imin (Creep A) - Outlet1

A2 Imax (A) - Outlet1

Current - Outlet 2 A3 Imin (Creep B) - Outlet2

A4 Imax (B) - Outlet2

Unused A5 Unused

Temperature A6 TEMPERATURE NOMINAL

A7 Reserved A8 PPMC A9 PPMC2

Cost AA Cost per KWh

AB Cost Unit string

Relay Configuration AC Pola rity, La tch type

AD Sequence Delay AE Energiz e Dela y AF Denergize Delay

B0 -BC Unused

Misc. Config BD Configuration

Unused BE Unused

BF Tol eran c e on Phas e C al i b r atio n

Quick Calibration Parameters C0 Calibration Type

C1 Calibration Voltage (Target) C2 Calibration Current (Target) C3 Cali b r ati on P ha se C4 Tolerance on Voltage Calibration C5 Tolerance on Current Calibration C6 Aver age Co unt for V ol tage C7 Aver age Co unt for C ur r e nt C8 Max Iteratio ns for V oltage C9 Max Iterations for Current CA Tolerance on Watts Calibration

CB Average Count for Watts CC Max Ite rations for Watts CD Calibration WRATE

CE Cali brati on Tem per ature

CF Calibration Watts (Target)

Temperature D0 Mi n T em pera t ure Alar m Thres hol d

D1 Max Temperature Alarm Threshold

Frequency D2 Min Frequency Alarm Threshold

D3 Max Frequency Alar m Threshold

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6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Voltage D4 SAG Voltage Alarm Threshold

D5 Min Voltage Alarm Threshold

D6 Max Voltage Al ar m T hr e s h ol d

Unused D7 Unused

Current - Outlet 1 D8 Max Current Alarm Threshold (NB )

D9 Max Current Alarm Threshold (WB)

Power Factor - Outlet 1 DA Power Factor Alarm - Threshold (NB)

DB Power Factor Alarm + Threshold (NB) DC Power Factor Alarm - Threshold (WB) DD Power Factor Alarm + Threshold (WB)

Current - Outlet 2 DE Max Current Alarm Threshold (NB)

DF Max Current Alarm Threshold (WB)

Power Factor - Outlet 2 E0 Power Factor Alarm - Threshold (NB)

E1 Power Factor Alarm + Threshold (NB) E2 Power Factor Alarm - Threshold (WB) E3 Power Factor Alarm + Threshold (WB)

Total Current

E4 Max Current Alarm Threshold (NB) E5 Max Current Alarm Threshold (WB)

Alarm Mask for Status Regs E6 Alarm Mask for Status

Alarm Mask for Alarm DI/O E7 Alarm Mask for Alarm DIO

Relay Controls F0 Relay On/Off Control

Min/Max Controls F1 Min/Max Controls

Clear Control F2 Accum ulator and Counter Clear. Power Factor Polarity

Table 12: CE Input Summary Chart

Calibration 08 Calibration Gain IA

09 Calibration Gain IB 0A Calibration Gain VA 0B Calibration Gain VB

Phase Compensation 0C Ph ase Ad j us t I A

0D Ph ase Ad j us t I B

CE Configuration 0E C E St ate

Pulse Rate 0F WRATE

10 Reserved

SAG Threshold 11 SAG Threshold

Quantization Corrections 12 Quant i z at i o n of f set W at ts A

13 Qua nti zati o n offs et W at t s B

14 Qua nti zati o n offs et V AR A

15 Qua nti zati o n offs et V AR B

16 Quanti zati o n offs et IA

17 Quantizatio n of fs et IB

18 Reserved

Gain Adjust 19 Temp erature Gain Adjust

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UG_6612_ 017 6612_OMU_S2+2_URT_V1_14 Firmware Description Document

8 Contact Information

For m or e i nform ation about Teridian Sem i conductor p r oduct s or to c heck the availability of the 78M6612, contact us at: http://www.teridian.com/contact-us/

644 0 Oak Canyon Road Suite 100 Irvin e, CA 92618-5201

Telephone: (714) 508-8800

FAX: (714) 508-8878

Rev. 1.0 57

6612_OMU_S2+2_URT_V1_14 Firmware Description Document UG_6612_017

Revision Hi story

Revision Date Description

1.0 3/5/2010 First public ation.

58 Rev. 1.0

Maxim Integrated 6612-OMU-S2+2-URT-V1-14 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

2 Description of Basic Measurement Equations

3 Serial Communication

4 Command Line In ter f ace

4.1 Identification and Information Commands

4.2 R eset Comman ds

4.3 MPU Data Acces s Comman d

4.3.1 Individual Address Read

4.3.2 Consecutive Read

4.3.3 Block Reads

4.3.4 Concatenated Reads

4.3.5 MPU/XDATA Access Commands

4.4 Auxiliary Commands

4.4.1 Repeat Command

4.5 Calibration Commands

4.5.1 Complete Calibration Command (“Single Command Calibration”)

4.5.2 Atomic C alib ration C ommand s

4.6 CE Data Acc es s Co m ma nds

4.6.1 Single Register CE Access

4.6.2 Consecutive CE Reads

4.6.3 U Command

4.7 CE Control Commands

4.7.1 CE Data Write

4.7.2 Tu rn Off C E Command

4.7.3 U Command

4.7.4 Turn On CE Command

4.8 I/O RAM (Configuration RAM) Command

5 MPU Measurement Outputs

6 Configuration Parameter Entry

6.1 MPU Param eters

6.2 CE Parameters

7 Address Content Summary

8 Contact Information

Revision Hi story