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Siemens MD-12HD User Manual Download Page 64

 

63 

Siemens Industry, Inc. 

Step 4) 

Putting it all together

 

VIA MODBUS RTU (SERIAL) USING FUNCTION CODE 6 / WRITE SINGLE REGISTER 

ID FC ADDR  DATA  CRC 

(note CRC order is swapped)

 

01 06 08 AA 

42 C8

 9A BC  

01 06 08 AB 

00 00 

FA 4A

 

 

VIA MODBUS RTU (SERIAL) USING FUNCTION CODE 16 / WRITE MULTIPLE REGISTER 

ID FC ADDR  #REGS  LN DATA0 DATA CRC 

01 10 08 AA 00 02 04 

42 C8 00 00

 8B EE 

 
 

VIA MODBUS TCP (ETHERNET) USING FUNCTION CODE 6 / WRITE SINGLE REGISTER 

TXNID PROID LENGT ID FC ADDR  DATA 

(TXNID will be arbitrary)

 

01 87 00 00 00 06 01 06 08 AA 

42 C8

 

01 88 00 00 00 06 01 06 08 AB 

00 00

 

 

VIA MODBUS TCP (ETHERNET) USING FUNCTION CODE 16 / WRITE MULTIPLE REGISTER 

TXNID PROID LENGT ID FC ADDR  #REGS LN DATA0 DATA1  

01 87 00 00 00 0B 01 10 08 AA 00 02 04 

42 C8 00 00 

 

Commands Requiring a Processor Reset 

Register manipulation of communication protocols or addressing require that the MD-xxHD perform a 
“soft reset” in order to take effect. Register 2100 can receive a user command to facilitate this process. 
BACnet users write a 

1

 and Modbus users write 

1234

 to effect a soft reset. The MD-xxHD reboot time is 

approximately 10 seconds. 

See the Modbus examples document on the DENT Instruments web site or included with your electronic 
documentation for additional support on programming Modbus. The following online resources are also 
helpful. 

http://Modbus.org/docs/PI_MBUS_300.pdf

 

http://www.Modbustools.com/Modbus.html 

http://www.simplyModbus.ca/TCP.htm 

http://www.tahapaksu.com/crc/

 

Windows Calculator (Programmer mode) 

 

 

Summary of Contents for MD-12HD

Page 1: ...ii Siemens Industry Inc User Guide MD 12HD MD 48HD Networked Metering Systems A6V11564207 ...

Page 2: ......

Page 3: ...l may not be reproduced or distributed without written permission from Siemens Content in this manual has been reproduced with permission from Dent Instruments Inc View Point HD is a trademark of Dent Instruments Inc Windows Windows 7 Windows 8 and Windows 10 are registered trademarks of Microsoft Corporation ...

Page 4: ... and Scripting Overview 15 Meter Configuration Details 16 Install the ViewPoint HD Software 16 Typical Installation 16 Custom Installation 17 Installation Trouble Shooting 17 Connection and Configuration Options Using ViewPoint HD 18 USB Connection Power and Communications 18 Ethernet Network Connections 20 Dynamic Host Configuration Protocol DHCP 20 Direct 20 LCD Display 20 No LCD Display 21 Netw...

Page 5: ...Physical Connections on an RS 485 Multidrop Network 41 Communication Verification 42 ViewPoint HD MD xxHD Web App 43 Physical Interface Verification 43 Serial Setup Verification 43 LAN Ethernet Network Verification 43 DHCP 43 Static IP 43 Protocol Verification 44 Modbus Settings 44 Modbus RTU Settings 44 Modbus TCP Settings 44 BACnet Settings 44 BACnet MSTP 44 BACnet IP 44 Pulse Inputs 45 ALARM SP...

Page 6: ...lute Address BACnet Object Assignments for Setting up Service Types 54 Configurations 54 Configuring System Registers 56 Modbus Protocol Commands 56 Slave Address 56 Modbus String Entry 56 Floating Point Registry Entry 60 Commands Requiring a Processor Reset 63 BACnet 64 BACnet Segmentation 64 BACnet Structured View 64 Appendix A MD xxHD LCD Menu Navigation 66 About Meter 66 Menu Navigation 67 Com...

Page 7: ...unication protocols that operate over an RS 485 serial network and BACnet IP and Modbus TCP are supported over Ethernet A USB port is also provided as the preferred connection for on site configuration and can be run concurrently with an RTU Unpacking the Unit The MD xxHD can be ordered with optional product features which are identifiable on the part number label MD AB HD X Y Z MD series Power Me...

Page 8: ...iemens Industry Inc MD xxHD Components All user connections are made on the circuit board Connectors are identified by function and include polarity markers MD 48HD Mounting Plate Model MD 48HD P D N Shown ...

Page 9: ...Siemens Industry inc 8 Alternate Product Configuration MD 12HD C D N Enclosure with Cover Removed ...

Page 10: ...proved protection when operating the device CAUTION THIS METER MAY CONTAIN LIFE THREATENING VOLTAGES QUALIFIED PERSONNEL MUST DISCONNECT ALL HIGH VOLTAGE WIRING BEFORE SERVICING THE METER WITH THE HIGH VOLTAGE TOUCH SAFE COVER REMOVED Symbols on Equipment Denotes caution See manual for a description of the meanings DENOTES HIGH VOLTAGE RISK OF ELECTRICAL SHOCK LIFE THREATENING VOLTAGES MAY BE PRES...

Page 11: ...sories are approved for use with the MD xxHD meter other than those specified in the Siemens product literature and price sheets If the meter appears damaged or defective first disconnect all power to the meter Then call or email technical support for assistance Siemens Industry Inc Buffalo Grove USA Phone 847 877 7545 Option 2 https support industry siemens com Email support us i bt siemens com ...

Page 12: ...n to Class 2 equipment Secure current transformer and route conductors so that they do not directly contact live terminals or bus CTs shall be listed to UL2808 Meter Installation Safety Requirements MD xxHD meters must be installed in accordance with local electrical codes Use copper conductors only Connection to the mains terminals shall be made with 14 AWG minimum wire gauge External secondary i...

Page 13: ...es an overview of typical process activities followed by details in the next section Configuration and Data Viewing Options The MD xxHD meter has three methods for configuration and data viewing The most powerful interface is a Microsoft Windows application ViewPoint HD that runs on PCs or Tablets ViewPoint HD is encouraged for complex installations and is required for configuring advanced functio...

Page 14: ...l Meter Parameters Waveform Capture Harmonic Analysis All Element View Phasor Plot Alarms All Meter Parameters Single Element View Voltage Current VA VAR kWh Single Element View All Meter Parameters Configuration Entire Meter Visual Guides Copy Paste Entire Meter Sans Alarms Text Based Communications Only Entire Meter Register Based Security PINs Enforced Factory Support Level 3 Read Only Level 1 ...

Page 15: ...ject Installation of ViewPoint HD Software Connect USB Ethernet cable from PC to meter Establish communication with meter Firmware update if desired Configure software for anticipated meter setup Field wiring documentation Set alarms Set security PINs Meter Installation Overview Performed by licensed electrician Tools Typical Work Mounting hardware customer supplied Wiring and supplies labels wire...

Page 16: ...e Add wire terminations if required Confirm meter communication settings Meter health metrics check for setup errors Analytics ViewPoint HD Correct instrumentation Set alarms Set security PINs Checklist RTU Programming and Scripting Overview Tools Typical Work Laptop PC Remote Access to RTU Remote troubleshooting Register List Confirm meter communication settings Confirm communication protocols Ex...

Page 17: ...serial network configurations must be pre configured or use Modbus BACnet hosts This section describes the use of the ViewPoint HD Windows Application If this interface cannot be used see the section on using the simplified MD xxHD Web App interface The web browser can be accessed from the USB port to support Mac users Install the ViewPoint HD Software Insert the ViewPoint HD thumb drive into the ...

Page 18: ...on of ViewPoint HD may be prevented by settings specific to your PC for the following reasons 1 Anti virus protection software may interfere with the installation of ViewPoint HD If the installation does not complete for this reason try temporarily disabling the virus protection software on your PC and re attempt the installation 2 Administrative Access In some cases user privilege settings may di...

Page 19: ...to B cable supplied Check out this option first ViewPoint HD Connection Options USB Connection Power and Communications Connect the MD xxHD meter to a USB port of your computer to provide both power and communications a If equipped the LCD display is the most visable indication of a running meter b For meters without a display a green flashing LED on the circuit board indicates that the MD xxHD me...

Page 20: ...ation Read the ViewPoint HD overview section below or watch the tutorial videos for additional information on configuring the meter By default MD xxHD meters are configured for DNS Ethernet addressing A very common configuration sequence is using USB to configure a meter for Ethernet communications at a static IP address and then switching from USB over to Ethernet to locate it This is facilitated...

Page 21: ...e to prevent IP conflicts with other equipment The meter is expecting to receive an IP address from a DHCP service provided by a router Layer 3 switch or a server providing DHCP service Under this configuration if the MD xxHD meter and the host PC are requesting an IP address from the same DHCP service provider they will be able to communicate Upon powering up the MD xxHD meter will indicate the I...

Page 22: ...dow 3 The meter should now be communicating ViewPoint HD is an intuitive application read the ViewPoint HD overview section below and or watch the tutorial videos for additional information on configuring the meter No LCD Display A MD xxHD meter without a display can only communicate directly with a PC over ethernet if the IP address of the meter is set to static Setting the IP address must be don...

Page 23: ...eter and select OK Test or Setup Note that the effectiveness of this technique is highly dependent on the configuration of the PC running ViewPoint HD which may have more than one network card and the network configuration Rescans can be used to make multiple attempts to locate a particular meter on busy networks UDP has no built in retry provisions Launch Configurator The final option in the View...

Page 24: ... has a content filter for viewing basic metering data or extended data that can be helpful in troubleshooting The information displayed in the drop down list for each filter setting is summarized below Display Data Monitor Power Energy Demand Monitor Power Energy Demand Power Factor Waveform Capture Harmonics Phasor Plot Setup Meter Setup Communication Setup Advanced About the Meter Setup Meter Se...

Page 25: ... models are selected in the drop down list and are identified by a combination of CT image and amperage range The parameters for the selected CT are automatically populated This information can be edited for custom use Service Type Select a service type from the drop down list A selection populates the fields with pre configured service type information User selectable fields are shown in white Gr...

Page 26: ...HD Demo mp4 Discover how to use the power meter as an oscilloscope to view electrical waveforms and identify harmonic distortion Phasor Plot MD xxHD Phasor Plot Phasor Plot Demo mp4 Discover how to use the electrical phasor plot to graphically confirm correct CT placement and orientation Alarms Demo MD xxHD Alarms Demo Alarms demo mp4 Discover how to configure and manage event alarms for condition...

Page 27: ...Siemens Industry inc 26 Configuring Electrical Components using ViewPoint HD ...

Page 28: ...R BACnet Modbus OR BACnet Modbus BACnet Modbus BACnet Set Serial Settings Set Serial Settings Set Device ID Set Max Masters optional Set Max Info Frames optional DHCP OR STATIC Set Modbus Port optional Set Device ID DHCP Static IP Set Static IP Address Set Subnet Mask Set Gateway Mask Press SEND SETUP TO METER Set MS TP Address Set BACnet Port BBMD optional Set Default Gateway ...

Page 29: ...t entry fields in grey are configuration aids and are NOT retained by the meter Only the fields with a black background are stored in the meters memory or in configuration files Nominal Values Entering alarm thresholds based on percent of nominal values is helpful when alarm conditions are desired to be centered around electrical components or industry standard conditions For example an over curre...

Page 30: ...ndow Calendar and allows the user to enter any desired date and time Set Time to Now populates the current time Press the OK button to commit this time to the RTC chip onboard the meter Real Time Clock Power Source The RTC integrated circuit is a stand alone low power circuit within the MD xxHD meter Time is kept in the absence of a connected external power source AC or USB power by a super capaci...

Page 31: ...vanced menu Click the Download button By default the name of the data file will include the Serial Number of the Meter and the System Description followed by Datalog see below After pressing OK the entire data path will be displayed The data log is a Comma Separated Values CSV file that can be opened in Excel or another program The data will be listed in Chronological Order according to an interna...

Page 32: ...ter by one of the following methods a c a Navigate to About Meter on the LCD menu b Use a network discovery tool to find the address by connecting and disconnecting the Ethernet cable c Set the meter to a static address using the serial interface 2 Connect your smart device to the same subnet as the MD xxHD meter 3 Open a Web Browser 4 Enter the MD xxHD s Ethernet address into the web browser Auth...

Page 33: ...OS version of 10 11 1 or higher 2 Drag the file dentinstruments 2 03a1 dmg onto the desktop 3 Double click the dmg file to initiate the MAC installer 4 Follow the installation prompts 5 Reboot the MAC after the installation process is complete 6 Connect the MD xxHD meter to the MAC with USB cable 7 Open Safari browser and type IP address 169 254 1 5 to access the MD xxHD Web App 8 If no login cred...

Page 34: ...figurations Siemens MD xxHD meters are sold in several form factors Enclosures are designed to be wall mounted and connected to electrical conduit Plate mounted versions are ready to be mounted inside a customer supplied NEMA enclosure Mounting Options MD 48HD MD 12HD MD xxHD Meter with Enclosure and Display MD 48HD C D N MD 12HD C D N MD xxHD Meter with Enclosure NO Display MD 48HD C N N MD 12HD ...

Page 35: ...Locate mark and drill wall mounting points 2x 6x customer supplied The plastic enclosure itself can be used as a template for marking the drill locations on the wall If the meter is not available for use as a drill template a drawing indicating the spacing between mounting holes can be found in the appendix The centerline holes are intended for fastening to wall studs If hollow wall fasteners are ...

Page 36: ...35 Siemens Industry Inc STEP 3 Mount conduit fittings conduits and blanking plugs STEP 4 Connect voltage leads DO NOT ENERGIZE METER WITH VOLTAGE COVER REMOVED ...

Page 37: ...nect the voltage leads L1 L2 L3 and N as necessary to the meter through a dedicated disconnect or circuit breaker A voltage lead of 14 AWG THHN Minimum 600VAC rating or equivalent is required IMPORTANT Verify the circuit breaker is marked as the disconnect breaker for the meter IP30 TOUCH SAFE with internal cover installed ...

Page 38: ...MPLE LOADS Single Phase L1 N or L2 N 110 VAC Lighting Appliance Living Zone Single Phase L1 L2 220 VAC Water Heater Clothes Dryer Equipment with no neutral wire Split Phase L1 L2 220 VAC Service Entrance Equipment with neutral wire 3 Wire 1 Phase used On MAINS L1 N L2 N RōCoils Shown Single Phase 110 VAC Plug Loads L1 N or L2 N Single Phase 220 VAC Plug Load L1 L2 Meter is powered from L1 to L2 on...

Page 39: ...this terminal If the neutral terminal is left open L L measurements will be accurate but L N measurements may not be symmetric If a ground wire is connected to the Neutral terminal 2 mA will flow into the ground wire Connect the Neutral wire or Ground wire to V INPUT 1 N on the MD xxHD meter Meter Power Connect all phases to the V INPUT 1 terminal Label as Disconnect 3 Wire 3 ɸ DELTA load No possi...

Page 40: ...placement Arrow points toward load or as instructed by CT label Arrow points away from Panel or as instructed by CT label Placed on First Conductor of voltage Reference L1 L2 circuits are placed on L1 Observe wiring color and polarity Use the Shield wire if provided connect to PCB terminal marked S Wiring Guide for CT Types Split Hinged and Solid Core CTs RōCoil CTs White Positive Black Negative n...

Page 41: ...w to connect CTs to the MD xxHD meter for each service type For service types that are not specifically listed it is recommended to choose single phase service and configure each channel individually Three phase loads are illustrated on the left and split phase loads on the right as an example only Elements are fully interchangeable on the meter ...

Page 42: ...ant setup modifications are anticipated a computer interface is recommended Physical Connections on an RS 485 Multidrop Network The MD xxHD meter uses a 2 Wire Half Duplex RS 485 Implementation Termination Resistors are NOT included on the MD xxHD meter If the MD xxHD meter is at the end of a daisy chain then connect a 120 ohm leaded resistor between the and terminal at the connector Bias Resistor...

Page 43: ...ace is presented in Appendix A as a navigational map Arrows indicate how to move from one menu display to the next A Reverse Contrast entry in the documentation indicates the active menu item in a list which corresponds to a blinking character in the physical LCD The ENTER button is used to select a property and up down buttons are used to select among the values supported by the meter Note that c...

Page 44: ... Mbps Verification of the meter settings over Ethernet includes ensuring that the IP address of the meter is within a range that allows communication with a host if static or is set for DHCP allowing the meter to be assigned an address by a DHCP server as described below DHCP If the MD xxHD meter is configured for DHCP when the meter is powered on or the Ethernet cable is inserted the meter is ass...

Page 45: ...d by incrementing the slave address by 1 The slave address of the MD xxHD meter needs to be set to match the address expected by the RTU and is normally part of the network specification The default address for element A is 1 Modbus TCP Settings Modbus Port The MD xxHD meter uses the industry standard Port 502 for Modbus This port number can be changed BACnet Settings BACnet Device ID In a BACnet ...

Page 46: ...direct entry mode or specifying the limits as a percentage of nominal Alarm persistence settings are used to allow for temporary conditions such as a motor starting that are beyond trigger limits For example in the case of meter upset from ESD events short persistence settings may lead to false alarm triggers When any alarm condition has been satisfied throughout the persistence interval the MD xx...

Page 47: ...EL OF security such that any network traffic acting as a master can retrieve and write data from the registers Generally this will require knowledge of the IP address or slave ID and the register list which discourages casual intrusion Security PIN Protection MD xxHD meters have two levels of PIN protection that users can choose to assign for restricting access to meter information The PIN logic i...

Page 48: ...tems and to reset the PINs This level of authorization will be required by any technician or user who needs the ability to correct setup errors in the meter The default PINs 0000 allow new users to reset the Read Write PIN from either the MD xxHD Web App or ViewPoint HD Permissions cannot be set through the LCD interface Reading PINs over Modus ViewPoint HD can be used to directly report the Read ...

Page 49: ...isplay will list the elements having at least one channel with a low power factor CHECK ELEMENTS A EF Use the navigation buttons to highlight a specific element and press ENTER or just press ENTER and move from element to element using the keys Within each element identified on the top line of the display the status of each channel is identified as good PF 0 55 or bad PF 0 55 ELEMENT F CH1 Good CH...

Page 50: ...n the absolute displacement power factor of a load is below 0 55 an angle greater than 57 degrees between voltage and current the MD xxHD meter will flag it as a phasing error ViewPoint HD has a PhasorPlot feature that can be used to study the voltage and current vectors of a given meter element Check for Low Power Factor ViewPoint HD Real Time Values All power factors 0 55 are shown in RED MD xxH...

Page 51: ...pact on the amplitude of the Power Factor A moderate power factor 0 7 in concert with a negative power is a clue that the CT is on backwards but is on the correct phase Electrical Power Quadrants with Reversed CT Shown Check that the wattage has the correct sign Designated for loads ViewPoint HD Real Time Values Confirm Sign of Power For All Elements MD xxHD Web App Real Time Values Confirm Sign o...

Page 52: ...ports overall harmonic content in power THD based on its measurement of Power Var and Apparent Power as illustrated in the figure below This method cannot indicate the harmonic number or distribution but provides the overall harmonic content In many circumstances users are interested in the harmonic content of current In cases where the voltage is very sinusoidial the THD measurement is a good est...

Page 53: ...er scaling adjustments to be included in the meter processing to eliminate post process scaling Adjustments for voltage are global to the meter while CTs can be adjusted on a channel by channel basis The multiplier is a floating point number and can also be used for post installation calibration if desired Default values are 1 0 CT Phase Shifts Current transformers like all other transformers expe...

Page 54: ...entified by alphabetic letter on the silk screen of the PCBA such as A B C D In a three phase power system these correspond to electric circuits Logically the term Element describes the scope of a data item register or point Modbus register or BACnet object Each Element based point is accessed by choosing the appropriate Modbus address BACnet object range or BACnet structured view Elements in turn...

Page 55: ...ype Every register should be explicitly written Red Text indicates Required Values Purple Text indicates Suggested Defaults if this data is not known Modbus Absolute Address BACnet Object Assignments for Setting up Service Types REGISTER TEMPLATE Service Type 2207 V_Input 2217 Description 2617 Channels Volt Ref CT Type Range Phase Shift CT Multiplier CT Sign CH1 2220 2223 2224 2225 2224 2225 2221 ...

Page 56: ...eds to be turned OFF should set the CT Type to OFF 3 Wire 1 ɸ Split Phase Service Type 4 V_Input 1 or 2 Description 31 Char Channels Volt Ref CT Type Range Phase Shift CT Multiplier CT Sign CH1 L1 N 1 mV 1 or RōCoil 2 Any 0A 3 0 to 3 0 Any 0 1 0 or 1 CH2 L2 N 2 mV 1 or RōCoil 2 Any 0A 3 0 to 3 0 Any 0 1 0 or 1 CH3 L3 N 3 OFF 0 Any 0A 3 0 to 3 0 Any 0 1 0 or 1 Even though CH3 is not used for comput...

Page 57: ...ite multiple registers useful but not required for 32 bit values and strings Report Slave ID 17 0x11 Used to read information from the identified MD xxHD meter Slave Address For Modbus TCP the base slave address or unit address as the Modbus TCP spec calls it is fixed at 1 See the section Serial Protocols for additional information on setting the Slave Address and finding the address of a specific...

Page 58: ...ISTER ID FC ADDR DATA CRC 01 06 04 37 31 39 EC B6 01 06 04 38 32 2E 9C 4B 01 06 04 39 31 36 CD 71 01 06 04 3A 38 2E 3B 2B 01 06 04 3B 32 2E 6C 4B 01 06 04 3C 39 00 5A A6 01 06 04 3D 00 00 19 36 01 06 04 3E 00 00 E9 36 VIA MODBUS RTU SERIAL USING FUNCTION CODE 16 WRITE MULTIPLE REGISTER ID FC ADDR REGS LN DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 CRC 01 10 04 37 00 08 10 31 39 32 2E 31 36 38 ...

Page 59: ...x 4D 61 69 6E 73 20 62 6C 64 20 31 30 31 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 STAR T STOP Specific Implementation Examples Element A set to ID 1 VIA MODBUS RTU SERIAL USING FUNCTION CODE 6 WRITE SINGLE REGISTER ID FC ADDR DATA CRC 01 06 0A 39 4D 61 AE A7 01 06 0A 3A 69 6E 05 A3 01 06 0A 3B 73 20 DF 37 01 06 0A 3C 62 6C 63 53 01 06 0A 3D 64 20 30 C6 01 06 0A 3E 31 30 FE 5A 01 06...

Page 60: ... 00 00 01 8F 00 00 00 06 01 06 0A 41 00 00 01 90 00 00 00 06 01 06 0A 42 00 00 01 91 00 00 00 06 01 06 0A 43 00 00 01 92 00 00 00 06 01 06 0A 44 00 00 01 93 00 00 00 06 01 06 0A 45 00 00 01 94 00 00 00 06 01 06 0A 46 00 00 01 95 00 00 00 06 01 06 0A 47 00 00 01 96 00 00 00 06 01 06 0A 48 00 00 VIA MODBUS TCP ETHERNET USING FUNCTION CODE 16 WRITE MULTIPLE REGISTER TXNID PROID LENGT ID FC ADDR REGS ...

Page 61: ...D xxHD meter data is stored as MSW LSW which may take some trial and error to identify in the RTU setup Float ABCD is an example of the how this RTU identifies the matching byte order It is anticipated that command line programmers or script writers may prefer to enter data in hexadecimal format Non programmers using Modbus or BACnet utilities or those using ViewPoint HD may prefer to use decimal ...

Page 62: ...se decimal values can be converted using a utility such as the MS Windows Calculator under Programmer mode as shown below After padding we also arrive at 0x42C8 0x0000 as the MSW and LSW register values respectively Step 2 Identify which configuration registers control the CH1 CT Full Scale Rating a Refer to the MS Excel Register List USB drive or at www DENTinstruments com b Use ViewPoint HD to d...

Page 63: ...of the registers controlled or displayed by this window The desired control registers are 2218 MSW and 2219 LSW Convert the register addresses of interest into hexadecimal notation if required STEP 3 Calculate the CRC 16 Modbus RTU for the expression There are several variations of the CRC016 ensure the one you are using is for Modbus The CRC is entered LSB first Enter the Entire Expression into a...

Page 64: ... PROID LENGT ID FC ADDR REGS LN DATA0 DATA1 01 87 00 00 00 0B 01 10 08 AA 00 02 04 42 C8 00 00 Commands Requiring a Processor Reset Register manipulation of communication protocols or addressing require that the MD xxHD perform a soft reset in order to take effect Register 2100 can receive a user command to facilitate this process BACnet users write a 1 and Modbus users write 1234 to effect a soft...

Page 65: ...foreign device registration This process requires a processor soft reset BACnet Segmentation The MD xxHD meter does not support BACnet Segmentation Segmentation is required when the requested data is longer than the underlying data packet size limitations of the protocol ie the Maximum Transmission Unit MTU The MTU for BACnet MS TP is 480 bytes and for BACnet IP it is 1476 bytes This means that so...

Page 66: ...ype Abbr Typical Usage Analog Input AI Meter Readings floating point numeric inputs Analog Value AV Analog User Settings floating point numeric outputs Binary Value BV User Boolean Settings Multi State Value MSV Enumerated Settings BitString Value BSV Bitfield Status Words and Settings Positive Integer Value PIV Restricted Range User Settings Character String Value CSV User Text string settings Th...

Page 67: ...ap is shown in diagram form in the next few pages The About Meter menu is the most commonly accessed item which requires 5 down presses or 1 up rolling menu to access The About Meter menu contains the following items which are displayed 4 lines at a time and accessed by using the keys on the front display ...

Page 68: ...67 Siemens Industry Inc Menu Navigation ...

Page 69: ...Siemens Industry inc 68 Communication Navigation ...

Page 70: ...69 Siemens Industry Inc Appendix B Enclosure Dimensions MD 48HD Enclosure Dimensions MD 12HD Enclosure Dimensions ...

Page 71: ...Siemens Industry Inc 70 Appendix C Mounting Templates Enclosure Internal Mounting Hole Locations MD 48HD and MD 12HD Enclosure Drill Templates ...

Page 72: ...71 Siemens Industry Inc Sheet Metal Plate Mounting Hole Locations MD 48HD and MD 12HD Mounting Plate Drill Templates ...

Page 73: ...HD Parameter Update Rate 1 second Interval Data Recording Energy kWh values are recorded every 15 minutes for 63 days downloadable log Each record is time stamped Measurements Volts Amps kW kVAR kVA aPF dPF kW demand kVA demand Import Received kWh Export Delivered kWh Net kWh Import Received kVAh Export Delivered kVAh Net kVAh Import Received kVARh Export Delivered kVARh Net kVARh THD Theta Freque...

Page 74: ...nections sized for 1 inch EMT conduit MD 48HD Dimensions L 33 7cm W 25 1cm H 8 0 cm 13 3 9 8 3 1 enclosure version L 26 2cm W 24 1cm H 8 0 cm 10 3 9 5 3 1 mounting plate version MD 12HD Dimensions L 24 8cm W 25 1cm H 8 0 cm 9 8 9 8 3 1 enclosure version L 17 8cm W 26 3cm H 8 0 cm 7 0 10 4 3 1 mounting plate version PCBA Dimensions L 21 6cm W 21 6cm H 6 4 cm 8 5 8 5 2 5 ViewPoint HD Minimum System ...

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