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Installation
MD-BMS and MD-BMED Power Meters Wiring Diagrams

52
Building Technologies

125-202

06/06/2017

Typical 115V Single-Phase Panel Setup

Connect the Black L1 voltage lead to Voltage L1 (hot), Red L2 voltage lead to Neutral,

and White N voltage lead to Neutral. CT1 will monitor the L1 load. CT3 can be used if

the Blue L3 voltage lead is connected to L1. CT3 could then monitor any L1 branch

circuit.

System Values

System values are the sum of L1 + L2 + L3 measurements. System values may not be

meaningful since two different devices or loads can be monitored by a single MD-BMS

or MD-BMED element.
When paired with the correct voltage phase, each CT provides individual kW/kWh

readings for that CT channel.

MD-BMS and MD-BMED Power Meters Wiring Diagrams

The MD-BMS and MD-BMED Power Meters can be wired using any one of the

following five common wiring setups. These diagrams will assist you in properly

connecting your power meter for the setup desired.

NOTE:

All wire colors are U.S. Standard, and differ from Canadian standards.

For Canadian installations, reverse the red and black wires (L1 = Red, L2 = Black).

WARNING

DO NOT EXCEED 600 Vac PHASE-TO-PHASE CAT III.
When complete, close the enclosure cover, if equipped.

WARNING

Hazardous voltages exist.
MD-BMS and MD-BMED Power Meters should only be wired by qualified personnel.

Содержание MD-BMED

Страница 1: ...125 202 Building Technologies 06 06 2017 125 202 Rev CA MD BMS and MD BMED Power Meters User Guide ...

Страница 2: ...thout the express written permission of Siemens Industry Inc All software described in this document is furnished under a license agreement and may be used or copied only in accordance with license terms For further information contact your nearest Siemens Industry Inc representative Copyright 2017 Siemens Industry Inc To the Reader Your feedback is important to us If you have comments about this ...

Страница 3: ...n Control 29 Meter Setup 29 Entering Wiring Information for an Element 30 Selecting a Scalar 32 Comms Setup Communications Setup 35 RS 485 Settings 35 BACnet Device Settings 35 Ethernet Settings 36 Connecting the Ports 36 Establishing Communication Protocol 36 Switching Between BACnet and Modbus Mode 37 Installation 40 Mounting the MD BMS and MD BMED Power Meters 40 Wiring Connections on the MD BM...

Страница 4: ...olute Net Value Protocol Commands 86 Appendix C Connecting Multiple MD Power Meters to an RS 485 Network 91 Communication Protocol 91 Daisy Chain Layout for RS 485 Network 91 Networking Using the BACnet MS TP Modbus RTU Protocol 91 Appendix D Installing Firmware Updates for the MD BMS and MD BMED Power Meter92 Downloading and Installing Firmware 92 Verifying Installation with ViewPoint Software 92...

Страница 5: ...eters can be connected to a Modbus RTU network The total number of Ethernet units that can be connected is equal to the number of available IP addresses The actual number of device connections may be less depending on network bandwidth considerations There is a configurable digital pulse output port on the MD BMS and MD BMED that can be used to output kWh kVARh or kVAh pulses to external devices o...

Страница 6: ...MD BMED 3 RGCT 100 Meter display and Ethernet three 100A split core current transformers with 1 25 windows MD BMED 3 RGCT 200 Meter display and Ethernet three 200A split core current transformers with 1 25 windows MD BMED 3 RGCT 400 Meter display and Ethernet three 400A split core current transformers with 1 25 windows Individual MD Series Power Metering Devices Individually orderable not in a kit...

Страница 7: ...CT SRS 005 U 5 Amp Revenue Grade Small Split Core CT with 0 4 window SCT SRS 050 U 50 Amp Revenue Grade Small Split Core CT wit 0 4 window SCT SRL 100 U 100 Amp Revenue Grade Large Split Core CT with 1 25 window SCT SRL 200 U 200 Amp Revenue Grade Large Split Core CT with 1 25 window SCT SRL 400 U 400 Amp Revenue Grade Large Split Core CT with 1 25 window Current Transformers CTs Revenue Grade Tor...

Страница 8: ... COC that has information about the meter and is valuable for tech support Save these documents in a safe place when not in use Warranty Siemens has reset the five year warranty date start to October 1 2016 which will provide extended warranty coverage to currently installed MD Power Meters through September 30 2021 for all units prior to Rev G Rev G units Newer units will carry the standard warra...

Страница 9: ...ilure to comply with these safety guidelines The MD BMS and MD BMED Power Meters are Over Voltage Category III devices Use approved rubber gloves with mechanical protection and goggles when operating these devices Conforms to UL Std 61010 1 and IEC61010 2 030 Certified to CSA Std C22 2 No 61010 1 Symbols on Equipment WARNING This meter may contain life threatening voltages Qualified personnel must...

Страница 10: ...ed WARNING Do not exceed 600 Volts This meter is equipped to monitor loads up to 600V Exceeding this voltage will cause damage to the meter and danger to the user Always use a Potential Transformer PT for loads in excess of 600V The MD BMS and MD BMED Power Meters are 600 Volt Over Voltage Category III devices WARNING DENOTES HIGH VOLTAGE RISK OF ELECTRICAL SHOCK LIFE THREATENING VOLTAGES MAY BE P...

Страница 11: ...t harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be r...

Страница 12: ...indiquées Tout autre utilisation peut annuler ses moyens de protection WARNING Risque d électrocution Pour raccorder un MD Model Power Meter à une prise de courant alternatif suivez cette séquence pour empêcher tout risque l électrocution Mettez hors tension le circuit à surveiller Connectez le transformateur de courant aux phases à surveiller Connectez les fils de tension aux différentes phases U...

Страница 13: ... MD BMS MD BMED tension dangereuse existent Il n y a acune pièce réparaable par l utilisateur n ouvrez pas le boîtier WARNING Limites du détecteur N utilisez que des transformateurs de tension shuntés Ne pas utiliser d autres transformateurs de tension N utilisez que des transformateurs de tension shuntés d une puissance maximale 333 mV De sérieux risques d électrocution et des dommages à l enregi...

Страница 14: ...ts Volts Amps kW kWh kVA kVAR kVARh kVAh Apparent Power Factor aPF Displacement Power Factor dPF All parameters for each phase and for system total Accuracy Rated to ANSI C12 20 2010 Class 0 2 Better than 0 2 0 1 typical for V A kW kVAR kVA and PF excluding sensor Resolution 0 01 Amp 0 1 Volt 0 01 watt 0 01 VAR 0 01 VA 0 01 Power Factor depending on scalar setting LED Indicators Bi color LEDs red ...

Страница 15: ...ompatible with a TS35 7 DIN Rail Channel Digital Display An optional 2 16 character display which auto cycles between informational screens every 2 3 seconds with real time values updated every second ViewPoint Minimum System Requirements Operating System Windows 7 32 or 64 bit Windows 8 Pro Vista 32 or 64 bit XP Windows 10 32 or 64 bit Communications Port One USB port and Type AB cable Hard Drive...

Страница 16: ... kind including water on the MD BMS or MD BMED Power Meters Only accessories specified in Siemens product literature or price sheets are approved for use with MD BMS or MD BMED Power Meters If the logger appears damaged or defective 1 Disconnect all power and sensors 2 Contact Technical Support for assistance Siemens Industry Inc 1000 Deerfield Parkway Buffalo Grove IL 60089 800 877 7545 Dial 2 ...

Страница 17: ...arate logger to record data The more tasks completed before installation means less time in the field These determinations figure into how you set up the MD BMS and MD BMED meters for operation BACnet default versus Modbus Set the network address switches on the meter to either Modbus or BACnet RS 485 default versus Ethernet The type of connection is part of the configuration set up in the ViewPoi...

Страница 18: ...from the following site Web Link www dentinstruments com siemens User Name siemens Password mdpowermeter Locate the ViewPointInstaller exe program Start the installer by double clicking ViewPointInstaller exe When ViewPoint starts up the Communication screen displays This is where the software networking parameters are entered to match the MD BMS and MD BMED networking configuration meter type COM...

Страница 19: ...r MD BMS and MD BMED meters are ordered from Siemens based on the type of desired communication connection Connecting and Communicating using a USB Connection The preferred method of communicating with the MD series power meters is through a computer to USB connection on the power meter A type AB USB cable may be used between a personal computer and an MD Series Power Meter and is the preferred me...

Страница 20: ...the MD BMS or MD BMED power meters can be used to power the unit when configuring it using ViewPoint and either BACnet or Modbus protocols Secondary Option Communicating with MD Series Meters using and RS 485 Adapter If connecting with a USB cable is not practical an RS 485 to USB adapter connected to your computer may be used for communicating with your MD BMS or MD BMED Power Meter First install...

Страница 21: ... 485 port does not appear in the drop down list the RS 485 was not installed correctly 1 Insert one end of a USB cable into the RS 485 adapter and the other end into a USB port on the computer 2 Insert the CD that came with the RS 485 adapter into your computer 3 The Found New Hardware Wizard window displays 4 Select Install the software automatically and click Next 5 Click Finish when the install...

Страница 22: ... into the meter Insert each white ferrule into the appropriate slots on the connector The red wire inserts in The black wire to The green wire in GND Figure 2 RS_485 Adapter Verify that the DIP switches on the back of the RS 485 Adapter are set to RS 485 Echo Off 2 Wire 2 Wire as shown below before plugging into the adapter into the MD BMS and MD BMED Figure 3 DIP Switches on Back of RS 485 Adapte...

Страница 23: ...restarted following an RS 485 Driver installation If an RS 485 port does not appear in the drop down list the RS 485 was not installed correctly 1 Select USB RS 485 MSTP as your communication type 2 Select PS 3037 3 When connecting with an RS 485 enter a base address that matches the switches on the MD BMS or MD BMED meter A USB connection ignores address switches See Setting the Network Address S...

Страница 24: ... position hexadecimal switches The default factory setting is hex 01 The address is a hexadecimal hex value represented by the digits 0 through 9 and letters A through F For example a network address of 100 in decimal is converted to 64 hexadecimal and set on the MD BMS and MD BMED by MSB switch select 6 LSB switch select 4 In some cases the hex value may need to be converted to decimal when enter...

Страница 25: ...ch does not match the selected hex switch settings on the MD BMS and MD BMED Change the switch settings The selected Baud Rate does not match the MD BMS and MD BMED baud rate Change the baud rate For more information see Appendix I Troubleshooting Communication Issues Connecting and Communicating Using an Ethernet TCP IP Connection MD BMED Only Connect one end of the Ethernet cable into the MD BME...

Страница 26: ...Ethernet is connected any RS 485 connection is deactivated To activate the RS 485 interface the MD BMS or MD BMED Power Meters must be power cycled with the Ethernet cable removed 1 Select Ethernet TCP IP to gather information using a network connection When selected the Communications Setup screen changes and an IP address is required as address switches are ignored 2 Select your mode of communic...

Страница 27: ...ess to the meter automatically select Use DHCP This may avoid the need for a network administrator as the router will assign an IP address that does not conflict with any other devices on the network A disadvantage of the DHCP option is that the lease of the IP address may expire after a period of time and the router could assign a different IP address A new IP address means that ViewPoint cannot ...

Страница 28: ...ng your selections ViewPoint displays the following message when the connection is successful Communications LEDs The MD BMS and MD BMED COM LEDs signal the following communication information Table 4 MD Series Meters Serial COM LED Signals BACnet Modbus Description Steady Green Steady Green Power is applied to the meter Flashing Green Flashing Green The meter is communicating N A Steady Red Commu...

Страница 29: ...pop up dialog box appears if either of those is out of date See Installing the ViewPoint Software for firmware downloading instructions Meter Setup Once communication is established between the computer and the MD BMS or MD BMED Power Meter you are now ready to configure the meter for the field This is accomplished in the Meter Setup tab of ViewPoint Use Type AB USB Cable from Meter to Computer ...

Страница 30: ...sumption is recalculated and compared to the last demand window If the new window is larger than the last recorded value it is recorded This value is calculated during the sampling of the waveform The Meter Setup screen is blank when first accessed Click Retrieve Meter Setup to view the current status of the element The Element Status dialog box displays while the element is read Entering Wiring I...

Страница 31: ...t Number CT Rated Amps CT Phase Shift Value Recommended Data Digital Scalar for 3 Phase Loads Nominal CT Accuracy 230V 460V Hinged Mini SCT HSC 0050 U 50 0 75 Scalar 1 Scalar 2 0 5 Hinged Midi SCT HMC 0100 U 100 0 12 Scalar 2 Scalar 2 0 3 SCT HMC 0200 U 200 0 30 1 Split Core Small SCT SCS 0050 50 2 20 Scalar 1 Scalar 2 1 SCT SCS 0100 100 Scalar 2 Split Core Medium SCT SCM 0100 100 1 75 Scalar 2 Sc...

Страница 32: ...tes 16 bits or a maximum decimal value of 65535 Modbus requires that the data be unsigned positive integer values To overcome these limitations some measured and stored values must be scaled to fit into the Modbus registers The raw value read from the Modbus registers is multiplied by a scalar to convert the raw data The following table lists the data scalars and the respective values for the MD B...

Страница 33: ...s 230 Volts 460 Volts 5 Scalar 1 Scalar 2 20 Scalar 1 Scalar 2 50 Scalar 1 Scalar 2 100 Scalar 2 Scalar 2 200 Scalar 2 Scalar 2 400 Scalar 2 Scalar 2 600 Scalar 2 Scalar 3 1000 Scalar 3 Scalar 3 4000 Scalar 3 Scalar 3 Examples Using a Data Scalar The following examples use kW throughout For example 1 the following data is used Volts x amps watts 480 volts x 100 amps 48 000 watts Watts x 3 system w...

Страница 34: ...s two registers identified by the terms MSW Most Significant Word and LSW Least Significant Word are examples of this wide ranging parameter To interpret the values contained in these registers the steps are 1 Multiply the MSW register by 65536 2 Add the result to the value found in the corresponding LSW register 3 Multiply the result by the appropriate scalar value from Table 8 For example assume...

Страница 35: ...e communications are transferred This screen displays the fields pertinent to your power connection and communication protocol so if you are connected by RS 485 then only those fields are shown However if you are connected with a USB cable all fields are displayed Changes to these fields override any settings on the Communications tab RS 485 Settings Change the Data Bits or Baud Rate on the meter ...

Страница 36: ...d and then returns to a solid green Change the ViewPoint hardware settings and click Connect again ViewPoint fills the Device Info fields when the computer communicates with the meter MD BMS and MD BMED meter installation can be verified using the ViewPoint software See Using ViewPoint Software further in this document for more information Establishing Communication Protocol The MD BMS and MD BMED...

Страница 37: ...wer Meters are shipped with BACnet communications as the default protocol It is recommended to use the Comms Setup tab in ViewPoint to change communications modes between BACnet and Modbus NOTE The baud rate and serial settings may need to change between Modbus and BACnet Setting address switches to 00 will set the unit in Modbus protocol 9600 baud rate If communication fails see Changing Baud Rat...

Страница 38: ...unications tab and Connect Changing the MD BMS or MD BMED Power Meter from BACnet to Modbus Mode 1 Connect to the MD BMS and MD BMED using ViewPoint 2 Go to the Read Set Objects tab in ViewPoint 3 Enter 10190 into the Object field or click List to select from the Object Picker list 4 In the Value field enter 375 to change to Modbus mode 5 Click OK The status should read Writing Value Return to the...

Страница 39: ... Address Switch Communication Mode RS 485 LED COM LED 1 Modbus Factory Default Red On Off 2 BACnet Red On Red On Set MSB to one of the following baud rates MSB Address Switch Baud Rate PhaseChek LED CT1 PhaseChek LED CT2 Phase Chek LED CT3 1 9600 Factory Default Off Off Green 2 19200 Off Green Off 3 38400 Off Green Green 4 57600 Modbus only Green Off Off 5 76800 Green Off Green 6 115200 Modbus onl...

Страница 40: ...er from all power sources before mounting Mounting the MD BMS and MD BMED Power Meters The MD BMS and MD BMED Power Meters must be installed in an approved electrical panel or enclosure using proper installation practices according to the NEC and local electrical codes 1 To mount the meter use the two tabs provided at each end of the case or mount on a 35 mm Top Hat mounting DIN rail EN 50022 2 Se...

Страница 41: ...and MD BMED Power Meters have the following wiring connections Optional USB port for powering the meter and communicating during setup a three wire connector for the RS 485 BACnet Modbus link and an Ethernet port Digital pulse output port The port can be used to output kWh kVARh or kVAh pulses to external devices or to toggle on and off to control a remote device or relay Three CT inputs Four volt...

Страница 42: ...Function 2 Connect the CTs See Wiring CTs 3 Connect the voltage and power the meter See Connecting Voltage Using the Digital Pulse Output Port Function The Digital Pulse Output see Figure 5 is used to generate pulses for external devices such as data loggers that can accept pulses but do not have BACnet or Modbus capability The MD BMS or MD BMED can generate pulses based on accumulated value s suc...

Страница 43: ...lse output write 44008 into the pulse output configuration object Modbus Output Port Registers Table 11 Modbus Digital Port Pulse Output Modbus Register Offset Register Name Detailed Description 44402 4401 5301 Port 1 output control when used as an on off open closed switch 0 Output LOW closed 1 Output HIGH open default Register 45110 must 0 to use 45110 5109 5309 Digital Port 1 Configuration Turn...

Страница 44: ... switch 44001 System kWh pulses 44008 System kVARh pulses 44011 System kVAh pulses 13110 Port 1 Pulse Output Relay Type 0 Normally Open HIGH 1 Normally Closed LOW Wiring CTs 1 Attach the CTs onto the green connectors labeled CT1 CT2 and CT3 2 Place the CTs on the phase wires of the load to be monitored and corresponding to the phase of the voltage leads The CT labeled CT1 must be placed on the L1 ...

Страница 45: ...5 Voltage Leads and CTs 1 Mechanically secure communication cable where it enters electrical utility panel WARNING The communication cable within electric panels and switchgear should be jacketed shielded twisted triad wire BELDEN 1121A The jacket insulation rating must be 600V DO NOT connect the communication cable to field panel yet ...

Страница 46: ...ositive and negative wires to the RS 485 connector using the daisy chain method see figure below Keep length of exposed wire to a minimum 3 Connect the COMMON wire to the RS 485 connector S terminal see figure below 4 Tape back one of the communication cable shields and connect the other shield to the Utility Panel Ground 5 If the MD BMS or MD BMED is the last networked device install the end of l...

Страница 47: ...or incorrect wiring WARNING To avoid personal injury or damage to RS 485 trunk devices verify no significant voltage no more than 5V exists on the network The MD BMS and MD BMED Power Meters are designed to be located inside high voltage switchgear They measure electrical use and connect directly to the serial network 12 Insert the CT wires into the green connector s See Figure 6 NOTE Unused CT or...

Страница 48: ...conductor does not exceed the maximum CT rating listed in the Split Core Current Transformers Small Medium and Large Sizes Technical Specification Sheet 149 406 3 Carefully reconnect the removable leg while ensuring that the CT core alignment matches The conductor should be in the inside of the CT window 4 Repeat Steps 1 through 3 if you are using more than one CT ...

Страница 49: ... instructions printed on the CT Connecting Rogowski Coil CTs to a Load To install a Rogowski Coil CT to the conductor s NOTE See Connecting a Rogowski Coil Flexible Current Transformer to a Load Installation Instructions 129 554 for detailed instructions 1 Open the CT by squeezing the connector latch and pulling it apart 2 Connect the CT around the load conductor to be measured Orient the CT so th...

Страница 50: ...e Lead Polarity Table 13 CT Polarity CT Type CT Lead CT Lead Rogowski Coil White Brown Split Core mV White Black Rogowski Coils have a shield wire that must be connected to the meter This reduces interference and improves the accuracy of the CT The directionality for Rogowski Coil CTs is that the arrow points toward the load for example motor Connecting the Voltage 1 Connect the voltage leads L1 L...

Страница 51: ... can be used to monitor single phase loads There are several guidelines to keep in mind about this type of connection 1 The MD BMS or MD BMED meter is powered from a potential between L1 and L2 This can be phase to phase 230V or phase to neutral 115V With a single phase 230V panel the L1 and L2 voltage leads are connected between the L1 and L2 voltage sources With a 115V circuit the L1 voltage lea...

Страница 52: ... by a single MD BMS or MD BMED element When paired with the correct voltage phase each CT provides individual kW kWh readings for that CT channel MD BMS and MD BMED Power Meters Wiring Diagrams The MD BMS and MD BMED Power Meters can be wired using any one of the following five common wiring setups These diagrams will assist you in properly connecting your power meter for the setup desired NOTE Al...

Страница 53: ...Installation MD BMS and MD BMED Power Meters Wiring Diagrams 53 Building Technologies 125 202 06 06 2017 Figure 9 Two Wire Single Phase ...

Страница 54: ...Installation MD BMS and MD BMED Power Meters Wiring Diagrams 54 Building Technologies 125 202 06 06 2017 Figure 10 Three Wire Single Phase ...

Страница 55: ...Installation MD BMS and MD BMED Power Meters Wiring Diagrams 55 Building Technologies 125 202 06 06 2017 Figure 11 Three Wire Delta ...

Страница 56: ...Installation MD BMS and MD BMED Power Meters Wiring Diagrams 56 Building Technologies 125 202 06 06 2017 Figure 12 Four Wire Wye ...

Страница 57: ...three bi color LEDs for each element These LEDs provide the following information All LEDs are green the system power factor is greater than 0 55 and the CTs are properly placed on the corresponding voltage phases Any one LED is red there is a phasing connection error Two LEDs are red and one is green two CTs are reversed All three LEDs are red all CTs are incorrectly connected NOTE If the total s...

Страница 58: ...Ts flashing red Red Red Green CT1 and CT2 are reversed Switch the position of the CTs flashing red Red Green Green CT1 is swapped with either CT2 or CT3 Switch CT1 with CT2 or switch CT1 with CT3 Green Red Green CT2 is swapped with either CT1 or CT3 Switch CT2 with CT1 or switch CT2 with CT3 Green Green Red CT3 is swapped with either CT1 or CT2 Switch CT3 with CT1 or switch CT3 with CT2 Red Green ...

Страница 59: ... real time values of Volts Amps KW KVA KVAR apparent power factor aPF and displacement power factor dPF for Phase L1 Phase L2 and Phase L3 This screen also displays the current Data Digital Scalar value used for each element the CT Type connected to the MD BMS or MD BMED Power Meter and the CT Value Do one of the following Click Update to retrieve the values from the MD Model Power Meter Select th...

Страница 60: ...eal time values directly from the meter display It has two rows of 16 characters along with a push button at one end of the unit that controls the display scroll mode When the display button is held down for five seconds the MD BMED will switch between Auto Cycle mode switches screens every two seconds and Manual Cycle the button must be pressed to switch screens This change is saved to non volati...

Страница 61: ...tions allowing the changing or viewing of the value of any MD BMS or MD BMED register or object The tab name changes depending on which protocol Modbus or BACnet you are using its use is not required for a basic setup Do one of the following Enter a register object address See Appendix A and Appendix B for a list of registers objects and their descriptions Click List to select a register object fr...

Страница 62: ...eference such as time since reset kWh demands and so on Resetting BACnet Objects Modbus Registers Many of the MD BMS or MD BMED objects registers are real time values such as instantaneous watts or power factor However some objects are accumulated values such as kWh kVARh kVAh and various Peak Demand kW values To reset all BACnet accumulated objects at once Write to object identifier 10140 Clear A...

Страница 63: ...a baud rate of 9600 will download the firmware to the unit in approximately six minutes A faster baud rate can be selected to reduce the time by approximately 2 5 minutes The baud rate is synchronized between ViewPoint and the MD BMED meter by clicking the Connect button on the Communications tab NOTE Siemens Industry Inc recommends using 115 200 bps as the baud rate when downloading firmware upda...

Страница 64: ... the ViewPoint application When ViewPoint starts it can automatically contact the DENT Instruments web site to get the latest versions available It only checks online when running for the first time or if it has been seven days since the last check If there is a new version the version number of the new release displays 1 Click Browse to access the Select a Firmware Update File dialog box and sele...

Страница 65: ...tifier 14015 This sends the register as foreign device packet with a Time to Live TTL of 60000 seconds To disable BBMD foreign device registration write 0 to both BBMD IP address LSW 14014 and BBMD IP address MSW 14015 or simply write 0 0 0 0 to the BBMD field in the ViewPoint Comms Setup tab Editable Fields The Name Location and Description Notes fields are all editable with up to 32 characters I...

Страница 66: ...0 kWh Sys Total System True Energy kWh Unsigned Absolute 2010 kWh System Total Positive System True Energy Positive kWh Signed Net 2020 kWh System Total Negative System True Energy Negative kWh Signed Net 2021 kWh System Total Net System True Energy kWh Net 2040 kWh L1 Positive Individual Phase True Energy kWh Signed 2050 kWh L1 Negative 2051 kWh L1 Net Individual Phase True Energy kWh Net 2070 kW...

Страница 67: ...kVAR Dem SystemNow Average kVAR demand for most recent window resettable Displays the default value after a CAM or reset or power cycle Updates every minute thereafter True demand value takes a demand period to get to actual value Unsigned Absolute 6010 kVARh Net System System Total Reactive Energy Unsigned Absolute 6020 kVARh System Total Positive System True Energy kVARh Positive Signed Net 6030...

Страница 68: ...ot reset and does not update again until 1 demand window elapses Unsigned Absolute 8050 kVA Dem System Now Average kVA for most recent demand window resettable Displays the default value after a CAM or reset or power cycle Updates every minute thereafter True demand value takes a demand period to get to actual value Unsigned Absolute 9000 DPF System Total Displacement Power Factor PF Signed 9030 A...

Страница 69: ...oes not permit 0 stop bits Add 1 1 Add 2 2 For example 901 9600 baud no parity 1 stop bit 12080 Service Type A value of 1 configures the meter for Delta A value of 0 configures the meter for Wye 12090 Freq Set Line frequency setting for metering 50 50 Hz 60 60 Hz 12130 CTA Type CT Type for all channels 1 MilliVolt 2 Rogowski 12131 CT1 Type 1 MilliVolt 2 Rogowski 12132 CT2 Type 1 MilliVolt 2 Rogows...

Страница 70: ...es by this scalar For use with stepdown transformer Affects all parameters that use amps 12070 Com Settings Baud 900 9600 1900 19200 3800 38400 5700 57600 7600 76800 11500 115200 Parity Add 00 NO Add 10 ODD Add 20 EVEN Stop bit Add 0 1 UART does not permit 0 stop bits Add 1 1 Add 2 2 For example 901 9600 baud no parity 1 stop bit 12080 Service Type A value of 1 configures the meter for Delta A val...

Страница 71: ...ifier Device Status Objects Object Identifier Name Description 10080 Hardware ID Hardware revisions 10090 Features New features 10130 Reset Processor Processor reset 10150 MD Model Power Meter Element ID Used for ViewPoint to determine which element is being read and total number of elements available Element index multiplied by 256 number of elements Positive Power Energy Accumulator Objects Obje...

Страница 72: ...tive Power Energy Accumulator Objects Object Identifier Name Description 1090 Negative kW System Average Equals kWh System Negative Time Since Reset 3600 seconds Hr resettable 1120 kW System Maximum Negative System Highest Instantaneous Negative Draw Since Reset kW 1150 kW System Minimum Negative System Lowest Instantaneous Negative Draw Since Reset kW resettable 2020 kWh System Total Negative Sys...

Страница 73: ...ppendices Appendix A MD BMS and MD BMED Power Meters BACnet Analog Value Objects 73 Building Technologies 125 202 06 06 2017 Object Identifier Name Description 7060 kVAh L2 Negative 7090 kVAh L3 Negative ...

Страница 74: ...44007 4006 kW System Min System Minimum Instantaneous kW Lowest 500mS kW sample measured 44008 4007 kVARh System LSW System Total Reactive Energy LSW kVARh 44009 4008 kVARh System MSW System Total Reactive Energy MSW kVARh 44010 4009 kVAR System System Total Reactive Power kVAR Unsigned absolute ABS value of ABS kVAR L1 ABS kVAR L2 ABS kVAR L3 44011 4010 kVAh System LSW System Total Apparent Energ...

Страница 75: ...s kW 44030 4029 kW L2 44031 4030 kW L3 44032 4031 kVARh L1 LSW Individual Phase Reactive Energy LSW kVARh 44033 4032 kVARh L1 MSW Individual Phase Reactive Energy MSW kVARh 44034 4033 kVARh L2 LSW 44035 4034 kVARh L2 MSW 44036 4035 kVARh L3 LSW 44037 4036 kVARh L3 MSW 44038 4037 kVAR L1 Individual Phase Reactive Powers kVAR 44039 4038 kVAR L2 44040 4039 kVAR L3 44041 4040 kVAh L1 LSW Individual Ph...

Страница 76: ...ermine if sample read is a newer sample than last read 44080 4079 kW System Average Equals KWH_SYSTEM_L M TimeSinceReset_L M seconds 3600 seconds Hr resettable 44081 4080 kW Demand System Min System Minimum Demand kW 44082 4081 kVA Demand System Max System Maximum Instantaneous kVA Demand kVA resettable It displays the default value after a CAM until one demand window elapses After a power cycle o...

Страница 77: ...aling of certain registers 44603 4602 Demand Window Size Demand window size in minutes default is 15 minutes 44604 4603 Volts Multiplier Multiply volts values by this scalar Use with Step down Transformer Affects all parameters that use volts such as kW 44605 4604 Amps Multiplier Multiply amps value by this scalar For use with 5A CTs and single let monitoring of a three phase load Affects all para...

Страница 78: ...T2s 50299 10298 CT2 Phase Shift Phase Shift 100 50300 10299 CT3 Integer Integer part of CT3 50301 10300 CT3 Decimal Fractional part of NV_CT3 50325 10324 CT3 Type Select 1 mV or 2 Rogowski CT3s 50399 10398 CT3 Phase Shift Phase Shift 100 Table 17 Writable Registers Modbus Offset Register Description 40129 128 Synchronize Register Multiple MD Model Power Meter s synchronization register 44066 4065 ...

Страница 79: ...NET L3 True Energy MSW kWh 46150 6149 kWh System NET POS LSW Positive of the NET System Total True Energy LSW kwH 46151 6150 KwH System NET POS MSW Positive of the NET System Total True Energy MSW kWh 46152 6151 KWh L1 NET POS LSW Positive of the NET L1 True Energy LSW kWh 46153 6152 KWh L1 NET POW MSW Positive of the NET L1 True Energy MSW kWh 46154 6153 KWh L2 NET POS LSW Positive of the NET L2 ...

Страница 80: ...stem Positive Instantaneous Positive True Power kW net sum of all individual kWs if sum is negative value 0 46004 6003 kW Demand System Max System Maximum Demand peak demand 46005 6004 kW Demand System Now Average Power kW for most recent demand window 46006 6005 Positive kW System Max System Net Highest Instantaneous Positive Draw Since Reset kW resettable 46007 6006 Positive kW System Min System...

Страница 81: ...to L1 46022 6021 Measured Line Frequency Line frequency x 10 e g 602 60 2 Hz On startup 20 point averaging array is filled with first frequency read 46023 6022 Positive kWh L1 LSW Individual Phase Positive True Energy LSW kWh resettable 46024 6023 Positive kWh L1 MSW Individual Phase Positive True Energy MSW kWh resettable 46025 6024 Positive kWh L2 LSW 46026 6025 Positive kWh L2 MSW 46027 6026 Po...

Страница 82: ...0 actual value If the Individual dPF 44050 is positive this register will contain that value otherwise it will be zero 46051 6050 Positive Displacement PF L2 46052 6051 Positive Displacement PF L3 46053 6052 Positive Apparent PF L1 Individual Phase Positive Apparent Power Factors aPF Register is 100 actual value If the Individual aPF 44053 is positive this register will contain that value otherwis...

Страница 83: ...scription 47001 7000 Negative kWh System LSW System Negative True Energy LSW kWh resettable 47002 7001 Negative kWh System MSW System Negative True Energy MSW kWh resettable 47003 7002 Negative kW System System Negative Instantaneous Negative True Power kW net sum of all individual kWs if sum is positive value 0 47004 7003 kW Demand System Max System Maximum Demand peak demand 47005 7004 kW Demand...

Страница 84: ... to Neutral Avg Average of the system line to neutral voltages 47019 7018 Volts L1 to L2 Individual phase to phase voltages 47020 7019 Volts L2 to L3 47021 7020 Volts L3 to L1 47022 7021 Measured Line Frequency Line frequency 10 for example 602 60 2 Hz On startup 20 point averaging array is filled with first frequency read 47023 7022 Negative kWh L1 LSW Individual Phase Negative True Energy LSW kW...

Страница 85: ...eous Apparent Powers kVA 47048 7047 kVA L2 47049 7048 kVA L3 47050 7049 Negative Displacement PF L1 Individual Phase Negative Displacement Power Factors dPF Register is 100 actual value If the Individual dPF 44050 is Negative this register will contain that value otherwise it will be zero 47051 7050 Negative Displacement PF L2 47052 7051 Negative Displacement PF L3 47053 7052 Negative Apparent PF ...

Страница 86: ...value is not reset and does not update again until one demand window elapses Protocol Commands The Modbus messaging protocol used for communication follows the Modbus RTU protocol described in this section Each register read from or written to the power meters is a 16 bit unsigned positive integer value The MD BMS and MD BMED power meters support the following commands Table 23 Supported Modbus Co...

Страница 87: ...gisters to read low order bits xx 01 CRC low order bits xx 41 CRC high order bits Xx 9F Command Example This command reads from a power meter with an address switch setting of 37 hex reading one byte starting at register offset 0C hex Note that offset 12 corresponds to Modbus register 40013 All values are hexadecimal Table 25 Example for Modbus Command 03 Example Request Field Name Command Hex Res...

Страница 88: ...Table 26 Format for Modbus Command 06 Command Information Command Layout Example Command Power meter address nn 37 Command number 06 06 Register to write high order bits xx 00 Register to write low order bits xx 00 Register value to write high order bits xx 00 Register value to write low order bits xx 00 CRC low order bits xx 8C CRC high order bits Xx 5C Command Example This command writes to a po...

Страница 89: ...er the contents are written is a valid response Error Response If the first register in this write command is not in the valid range of registers the power meter returns an error message Report Slave ID This command is used to read the description current status and other information specific to a remote device A normal response includes the data contents specific to the device Table 28 Format for...

Страница 90: ...es 125 202 06 06 2017 Slave ID The MD BMS and MD BMED power meters use the following default format for the slave ID Siemens Industry MD BMS Serial Number FW Ref Major Revision Minor Revision Scalar X Example Siemens Industry MD BMS PS3912001 FW Rev 10 Scalar 3 NOTE See Veris H8035 H80346 Emulation for slave ID structure while in Veris emulation ...

Страница 91: ...le devices connected to the same network RS 485 is the protocol standard used by MD BMS or MD BMED meters as the hardware s physical interface while BACnet or Modbus is the networking protocol Daisy Chain Layout for RS 485 Network When multiple devices are connected the devices must be connected in a daisy chain A daisy chain means that all plus connections are chained together and all minus conne...

Страница 92: ...t Software and Communicating with the MD Model Power Meter for additional information 2 Select the baud rate for loading the firmware to the MD BMS or MD BMED Power Meter A baud rate of 9600 downloads the firmware to the MD BMS or MD BMED in approximately six minutes A faster baud rate can be selected to reduce the time by approximately 2 5 minutes Change the baud rate using the Communications tab...

Страница 93: ... L3 This screen also displays the CT type connected to the MD BMS or MD BMED Power Meter and the CT value Values displayed for Volts Amps Kw and so on should make sense meaning that the values in the table are relevant for the service being measured This indicates the MD BMS or MD BMED Power Meter setup is correct It may also be useful to use a handheld amp meter to test the current and compare it...

Страница 94: ...lues directly from the meter It has two rows of 16 characters that auto cycle between informational screens every two to three seconds with real time values updated every second Click the Hold button located on the side of the meter to stop the cycle until it is clicked again or until a set timeout is reached Some information such as protocol CT type Volts Aps Kw PF and so on is displayed during e...

Страница 95: ...ster 44526 contains a 1 for Veris mode the Slave ID command format is 91hFFh Veris type Full Data Modbus CT value Amp The following is an example command with CT set for 100A 91hFFhVeris H8036 0100 2 Full Data Modbus 100 Amp Example command explanation 91h version control FFh standard for active The 91h and FFh are 4 bytes in front of the string that are not displayed in the RTU Table 30 CT Amp Ra...

Страница 96: ...2 40015 14 Apparent PF L3 40016 15 Volts L1 to L2 Individual Phase to Phase Voltages Volts Delta 3 values 40017 16 Volts L2 to L3 40018 17 Volts L1 to L3 40019 18 Volts L1 to Neutral Individual Phase to Neutral Voltages Volts Wye 3 values 40020 19 Volts L2 to Neutral 40021 20 Volts L3 to Neutral 40022 21 Amps L1 Individual Phase Currents Amps 3 values 40023 22 Amps L2 40024 23 Amps L3 40025 24 kW ...

Страница 97: ... 3 0518exp 5 40014 aPF L2 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 40015 aPF L3 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 40016 VOLTS L1 L2 0 03125 0 03125 0 03125 0 03125 0 03125 40017 VOLTS L2 L3 0 03125 0 03125 0 03125 0 03125 0 03125 40018 VOLTS L3 L1 0 03125 0 03125 0 03125 0 03125 0 03125 40019 VOLTS L1 N 0 015625 0 015625 0 015625 0 015625 0 015625 40020...

Страница 98: ...System Total Power Factor LSW 40269 268 VERIS Float Volts Line to Line Avg MSW Voltage Line to Line Average MSW 40270 269 VERIS Float Volts Line to Line Avg LSW Voltage Line to Line Average LSW 40271 270 VERIS Float Volts Line to Neutral Avg MSW Voltage Line to Neutral Average MSW 40272 271 VERIS Float Volts Line to Neutral Avg LSW Voltage Line to Neutral Average LSW 40273 272 VERIS Float Amps Sys...

Страница 99: ...se to Neutral Voltage L1 to N LSW 40295 294 VERIS Float Volts L2 to Neutral MSW Phase to Neutral Voltage L2 to N MSW 40296 295 VERIS Float Volts L2 to Neutral LSW Phase to Neutral Voltage L2 to N LSW 40297 296 VERIS Float Volts L3 to Neutral MSW Phase to Neutral Voltage L3 to N MSW 40298 297 VERIS Float Volts L3 to Neutral LSW Phase to Neutral Voltage L3 to N LSW 40299 298 VERIS Float Amps L1 MSW ...

Страница 100: ...174 AE 217 D9 3 03 46 2E 89 59 132 84 175 AF 218 DA 4 04 47 2F 90 5A 133 85 176 B0 219 DB 5 05 48 30 91 5B 134 86 177 B1 220 DC 6 06 49 31 92 5C 135 87 178 B2 221 DD 7 07 50 32 93 5D 136 88 179 B3 222 DE 8 08 51 33 94 5E 137 89 180 B4 223 DF 9 09 52 34 95 5F 138 8A 181 B5 224 E0 10 0A 53 35 96 60 139 8B 182 B6 225 E1 11 0B 54 36 97 61 140 8C 183 B7 226 E2 12 0C 55 37 98 62 141 8D 184 B8 227 E3 13 ...

Страница 101: ...F3 29 1D 72 48 115 73 158 9E 201 C9 244 F4 30 1E 73 49 116 74 159 9F 202 CA 245 F5 31 1F 74 4A 117 75 160 A0 203 CB 246 F6 32 20 75 4B 118 76 161 A1 204 CC 247 F7 33 21 76 4C 119 77 162 A2 205 CD 248 F8 34 22 77 4D 120 78 163 A3 206 CE 249 F9 35 23 78 4E 121 79 164 A4 207 CF 250 FA 36 24 79 4F 122 7A 165 A5 208 D0 251 FB 37 25 80 50 123 7B 166 A6 209 D1 252 FC 38 26 81 51 124 7C 167 A7 210 D2 253 ...

Страница 102: ... digital display It has two rows of 16 characters that auto cycle between informational screens every two to three seconds with real time values updated every second A Hold button located on the side of the meter near the USB jack will stop the cycle until it is pressed again or a set timeout is reached The following flowchart shows the information displayed during the cycles ...

Страница 103: ...mory in case of power loss Auto Cycle The display will auto cycle between flowchart screens every 2 seconds Pushing the meter display button 5 seconds will serve to temporarily hold the current screen until either the display button is pushed again or until a 20 second default timeout occurs returning it to auto cycle Manual Cycle and Hold The display will advance the flowchart screens using a man...

Страница 104: ...us Base Address Switches field to 00 2 On the MD BMS or MD BMED set the address switches to 00 3 Power up the meter With both settings at 00 ViewPoint and the MD BMS or MD BMED will communicate at a 9600 baud rate regardless of a baud rate mismatch Communications is established 4 Select the desired baud rate in ViewPoint from the Baud Rate drop down list This synchronizes the baud rates between Vi...

Страница 105: ...s can also cause a communication failure Check for wiring and cabling issues with the RS 485 adapter Check for polarity frayed wires and or pinched insulation Verify that the DIP Switches on the back of the USB to RS 485 adapter are set to the following Reboot the computer Click Connect on the Communications tab to reestablish communications ...

Страница 106: ...age in Vac BACnet phase L1 L3 value unsigned individual L1 to L3 voltage in Vac positive phase L1 L3 same data as above copied here as a convenience negative phase L1 L3 same data as above copied here as a convenience 3030 44020 46020 47020 4019 6019 7019 Individual Phase to Phase Voltage L2 L3 Volts L2 L3 phase L2 L3 signed individual L2 to L3 voltage in Vac BACnet phase L2 L3 value unsigned indi...

Страница 107: ...igned individual L2 phase current in Amps BACnet phase L2 amps value unsigned individual L2 phase current in Amps positive phase L2 amps same data as above copied here as a convenience negative phase L2 amps same data as above copied here as a convenience 4030 44057 46057 47057 4056 6056 7056 Individual Phase Current L3 Amps L3 phase L3 amps signed individual L3 phase current in Amps BACnet phase ...

Страница 108: ...s register is 100x actual value positive aPF L1 value unsigned Modbus register is 100x actual value negative aPF L1 value unsigned Modbus register is 100x actual value NOTES If aPF value 0 positive aPF system aPF negative aPF 0 If aPF value 0 negative aPF system aPF positive aPF 0 9150 44053 46053 47053 4052 6052 7052 Individual Phase Apparent Power Factor L2 aPF L2 aPF L2 value signed individual ...

Страница 109: ...signed Modbus register is 100x actual value positive dPF L1 value unsigned Modbus register is 100x actual value negative dPF L1 value unsigned Modbus register is 100x actual value NOTES If dPF value 0 positive dPF system dPF negative dPF 0 If dPF value 0 negative dPF system dPF positive dPF 0 9060 44050 46050 47050 4049 6049 7049 Individual Phase Displacement Power Factor L2 dPF L2 dPF L2 value si...

Страница 110: ...nt dmd window kW NOTES If Dmd value 0 Dmd positive Dmd value Dmd negative 0 If Dmd value 0 Dmd negative Dmd value Dmd positive 0 1010 44005 46005 47005 4004 6004 7004 System Minimum Power Demand kW Demand System Min returns minimum demand value read since startup or reset of demand register kW Dmd min unsigned avg power most recent dmd window in kW BACnet kW Dmd min value unsigned avg power most r...

Страница 111: ...06 6006 7006 Individual Phase Instantaneous True Power L1 kW L1 total kW L1 value signed individual L1 phase true power in kW BACnet total kW L1 value unsigned individual L1 phase true power in kW positive kW L1 value unsigned individual L1 phase true power in kW negative kW L1 value unsigned individual L1 phase true power in kW NOTES If kW L1 value 0 positive kW L1 total kW L1 negative kW L1 0 If...

Страница 112: ...recent dmd win kVA negative kVA Dmd now unsigned kVA power most recent dmd win kVA NOTES If Dmd value 0 Dmd positive Dmd value Dmd negative 0 If Dmd value 0 Dmd negative Dmd value Dmd positive 0 8050 44083 46083 47083 4082 6082 7082 System Total Apparent Power kVA System equals unsigned value of ABS kVA L1 ABS kVA L2 ABS kVA L3 in kVA kVA Sys signed absolute in kW BACnet kVA Sys value unsigned tot...

Страница 113: ... kVAR BACnet kVAR Dmd max value unsigned absolute kVAR demand in kVAR positive kVAR Dmd max unsigned positive value kVAR demand in kVAR negative kVAR Dmd max unsigned neg value kVAR demand in kVAR NOTES If Dmd value 0 Dmd positive Dmd value Dmd negative 0 If Dmd value 0 Dmd negative Dmd value Dmd positive 0 5120 44084 46084 47084 4083 6083 7083 System Average Reactive Power Demand kVAR Demand Syst...

Страница 114: ...unsigned individual L2 kVAR power in kVAR negative kVAR L2 value unsigned individual L2 kVAR power in kVAR NOTES If kVAR L2 value 0 pos kVAR L2 total kVAR L2 neg kVAR L2 0 If kVAR L2 value 0 neg kVAR L2 total kVAR L2 pos kVAR L2 0 5060 44039 46039 47039 4038 6038 7038 Individual Phase Reactive Power L3 kVAR L3 total kVAR L3 value signed individual L3 kVAR power in kVAR BACnet total kVAR L3 value u...

Страница 115: ...in kWh positive kWh L1 value unsigned individual L2 phase true energy in kWh negative kWh L1 value unsigned individual L2 phase true energy in kWh NOTES If kWh L1 value 0 positive kWh L1 total kWh L1 negative kWh L1 0 If kWh L1 Value 0 negative kWh L1 total kWh L1 positive aPF 0 1160 2040 2050 44023 lsw 44023 msw 46023 lsw 46024 msw 47023 lsw 47024 msw 4022 lsw 4023 msw 6022 lsw 6023 msw 7022 lsw ...

Страница 116: ... L1 value unsigned individual L2 kVAh energy in kVAh positive kVAh L1 value unsigned individual L2 kVAh energy in kVAh negative kVAh L1 value unsigned individual L2 kVAh energy in kVAh NOTES If kVAh L1 value 0 pos kVAh L1 total kVAh L1 neg kVAh L1 0 If kVAh L1 value 0 neg kVAh L1 total kVAh L1 pos kVAh L1 0 7020 7030 44041 lsw 44042 msw 46041 lsw 46042 msw 47041 lsw 47042 msw 4040 lsw 4041 msw 604...

Страница 117: ... energy in kVARh positive kVARh L1 value unsigned individual L2 kVARh energy in kVARh negative kVARh L1 value unsigned individual L2 kVARh energy in kVARh NOTES If kVARh L1 value 0 pos kVARh L1 total kVARh L1 neg kVARh L1 0 If kVARh L1 value 0 neg kVARh L1 total kVARh L1 pos kVARh L1 0 6050 6060 44032 lsw 44033 msw 46032 lsw 46033 msw 47032 lsw 47022 msw 4031 lsw 4032 msw 6031 lsw 6032 msw 7031 ls...

Страница 118: ... RTU network Siemens recommends no more than 150 units due to difficulties in estimating network traffic More may be achieved based on the network traffic How is hexadecimal HEX to decimal converted Use the Decimal to Hexadecimal Conversion table in Appendix G of this manual Meter addressing is in hexadecimal What is true RMS RMS stands for Root Mean Square True RMS is the power from AC voltage cu...

Страница 119: ...y 16 bits wide and is in integer format without any fixed number of decimal points Simply putting a value directly into one of these registers would limit the smallest number to 1 and only allow for a maximum value of 65535 To handle larger numbers or numbers with better resolution we use a scalar value to apply a factor in multiples of 10 to the 16 bit data register value How do I update the firm...

Страница 120: ...d computer science hexadecimal or hex is a numeral system with a radix or base of 16 It uses sixteen distinct symbols most often the symbols 0 to 9 to represent values zero to nine and A B C D E F or a through f to represent values ten to fifteen kVAh Kilovolt Ampere Hour kVARh Kilovolt Ampere Reactive Hours kWh Kilowatt Hour LSB Least significant bit LSW Modbus mode only Least Significant Word Un...

Страница 121: ...er measures true RMS RS 485 EIA 485 is used as the physical layer underlying many standard and proprietary automation protocols used to implement Industrial Control Systems including BACnet Modbus P1 RTU A Remote Terminal Unit RTU is a microprocessor controlled electronic device which interfaces objects in the physical world to a distributed control system or a SCADA system by transmitting telemet...

Страница 122: ... Division 1000 Deerfield Pkwy Buffalo Grove IL 60089 Tel 1 847 215 1000 Siemens Industry Inc 2017 Technical specifications and availability subject to change without notice Document ID 125 202 125 202 CA MD BMS and MD BMED Power Meters Edition 06 06 2017 ...

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