1. Manuals
  2. Brands
  3. Siemens Manuals
  4. Measuring Instruments
  5. MD-12HD
  6. User manual

Siemens MD-12HD User Manual

Networked metering systems
Hide thumbs
Table of Contents

Advertisement

Quick Links

User Guide
MD-12HD
MD-48HD
Networked Metering Systems
A6V11564207
ii
Siemens Industry, Inc.

Advertisement

Table of Contents
loading

Related Manuals for Siemens MD-12HD

Summary of Contents for Siemens MD-12HD

  • Page 1 User Guide MD-12HD MD-48HD Networked Metering Systems A6V11564207 Siemens Industry, Inc.
  • Page 3 User Guide: MD-xxHD Networked Power Meters ©2019 Siemens. All rights reserved. This manual 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.

  • Page 4: Table Of Contents

    ViewPoint HD™ Documentation—Instructional Videos .......... 25 Configuring Electrical Components using ViewPoint HD ........26 Configuring Communications using Viewpoint HD ..........27 Configuring Alarms in ViewPoint HD ............... 28 Configuration Input Methods ..................28 Setting the Real Time Clock ..................29 Siemens Industry, Inc.
  • Page 5 Read Only Permission Register ................47 Read/Write Permission Register ................47 Reading PINs over Modus ..................47 ViewPoint HD – Unrestricted Access ..............47 Verification of Installation ................... 48 Installation Phase Verification ................. 48 Phase Checking By Phasor Plot ................49 Siemens Industry, inc.
  • Page 6 Multipliers ........................ 52 CT Phase Shifts ...................... 52 Demand ........................52 RTU Programming and Scripting - Details ..............53 Register Organization ....................53 https://www.dentinstruments.com/siemens ............. 53 Element vs. System Scope ..................53 Element ........................53 Channel ........................53 System ........................54 Configuring Element and Channel Register for Service Types .........

  • Page 7: Introduction

    Introduction There are two meters in the MD-xxHD Series: the MD-12HD and the MD-48HD. These meters monitor the voltage, current, power, energy, and many other electrical parameters on single and three-phase electrical systems. A MD-xxHD meter uses direct connections to each phase of the voltage and current transformers to monitor each phase of the current.

  • Page 8: Md-Xxhd Components

    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) Siemens Industry, Inc.

  • Page 9: Alternate Product Configuration

    Alternate Product Configuration MD-12HD-C-D-N (Enclosure with Cover Removed) Siemens Industry, inc.

  • Page 10: Md-Xxhd Meter Safety Summary And Specifications

    MD-48HD-C-D-N, MD-48HD-C-N-N SC1731-EM, SC1732-EM MD-12HD-P-D-N and MD-48HD-P-D-N meters need to be installed in a user-supplied UL Listed/ uR recognized enclosure in order to comply with NEC and local electrical codes. The MD-xxHD is an Over-Voltage Category III device. Use approved protection when operating the device.

  • Page 11: Maintenance

    There is no required maintenance with the MD-xxHD. Abide by the following items: Cleaning: No cleaning agents, including water, shall be used on the MD-xxHD. No accessories are approved for use with the MD-xxHD meter other than those specified in the Siemens product literature and price sheets.

  • Page 12: Meter Safety

    INSULATION, the leads must be segregated or insulated from different circuits. 4. The current transformers are intended for installation within the same enclosure as the equipment. These may not be installed within switchgears and panel boards or similar. Siemens Industry, Inc.

  • Page 13: Planning For Field Installation

    USB, or Ethernet. The third interface (LCD) is an optional component and is intended for intermittent end-user observation and is restricted in capability. The RTU can also be used for configuration if communication settings are already established.The feature set of each interface is summarized next. Siemens Industry, inc.

  • Page 14: Information Access By Interface Type

    Information Access by Interface Type Siemens Interface Options Customer Smart Device or Tablet PC or Laptop Running LCD on Meter (Host System) ViewPoint HD (if equipped) MD-xxHD Web App Modbus/BACnet Meter Setup Field Visit End User Building System Field Visit...

  • Page 15: Meter Configuration Overview

    Electrical installation • Wiring and supplies, labels, wire ties • Install voltage cover • Tablet, Smart Device, or • Apply power to meter Laptop PC • Confirm basic operation of meter • Multi Meter, Current Clamp • Camera Siemens Industry, inc.

  • Page 16: Verification And Communication Overview

    Laptop PC (Remote Access to RTU) Confirm meter communication settings • Remote troubleshooting • Confirm communication protocols • Register List • Exercise remote connectivity • Run configuration scripting • Set alarms • Set security PINs • Confirm data integrity Siemens Industry, Inc.

  • Page 17: Meter Configuration - Details

    Locate the ViewPoint HD Installer and open this folder. Typical Installation Double-click the “RunMe to Install ViewPoint HD.bat” batch file to install ViewPoint and its support files in Windows default location. This option works for most users. Siemens Industry, Inc.

  • Page 18: Custom Installation

    PC and re-attempt the installation. 2) Administrative Access. In some cases, user privilege settings may disallow the installation of new applications. This may require logging in as an administrator. Siemens Industry, Inc.

  • Page 19: Connection And Configuration Options Using Viewpoint Hd

    The MD-xxHD meter draws 450 mA from the USB port which may overload “out of spec” USB hosts. If the meter fails to power, or flickers when powering over USB, an alternate configuration for power must be used. Siemens Industry, inc.
  • Page 20 Ethernet communications at a static IP address and then switching from USB over to Ethernet to locate it. This is facilitated in ViewPoint HD by pressing the Refresh Connectivity icon located in the upper right hand corner. Siemens Industry, Inc.

  • Page 21: Ethernet Network Connections

    Change the IP address in the meter to match the subnet of your PC’s IP address, making the meter IP unique, or note the current address on the meter and prepare to configure your PC’s IP settings as shown below: Siemens Industry, inc.

  • Page 22: 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 done ahead of time using another interface (such as USB or serial). Siemens Industry, Inc.

  • Page 23: Network Scan

    After prompting the user for a meter model (shown below), ViewPoint HD launches under a mode with restricted functionality. This mode operates on files only. Siemens Industry, inc.

  • Page 24: Viewpoint Hd Software Overview

    Display Data Monitor Monitor Power Power Energy Energy Demand Demand Power Factor Waveform Capture Harmonics Phasor Plot Setup Setup Meter Setup Meter Setup Communication Setup Communication Setup Advanced Alarms About the Meter Advanced About the Meter Siemens Industry, Inc.

  • Page 25: Viewpoint Hd Documentation

    User-selectable fields are shown in white. Greyed out fields indicate restrictions imposed by the meter. Wiring Diagrams Diagrams of different wiring configurations, such as illustrated here, are available directly within the software for quick reference. Siemens Industry, inc.

  • Page 26: Viewpoint Hd™ Documentation-Instructional Videos

    PIN Demo.mp4 LCD display or web page. Excel Register List Tips Register List Demo \ Discover how to use filters in the MS Excel Register document to quickly Register List.mp4 locate registers or BACnet objects of interest. Siemens Industry, Inc.

  • Page 27: Configuring Electrical Components Using Viewpoint Hd

    Configuring Electrical Components using ViewPoint HD Siemens Industry, inc.

  • Page 28: Configuring Communications Using Viewpoint Hd

    Set Device ID DHCP Set MS/TP Address DHCP Static IP STATIC Set Max Masters (optional) Set Static IP Address Set Max Info Frames Set Subnet Mask (optional) Set Gateway Mask Set Default Gateway Press SEND SETUP TO METER Siemens Industry, Inc.

  • Page 29: Configuring Alarms In Viewpoint Hd

    80% of an installed circuit breaker to alert when that breaker exceeds NEC recommendations. Absolute Values Entering alarms based on absolute value is a matter of entering the triggering values directly in the register fields (black background). Siemens Industry, inc.

  • Page 30: Setting The Real Time Clock

    Users desiring to use the Interval Data Recording capability of the MD-xxHD meter will want to have a procedure that ensures the Real Time Clock is set as part of the commissioning process. Siemens Industry, Inc.

  • Page 31: Retrieving Interval Data

    (example below). B1 kWh … Sequence Time Stamp A1 kWh A2 kWh A3 kWh A System Number 123456 5/15/2018 12:00 1.11E+5 2.22E+5 3.33E+5 6.66E+5 123457 5/15/2018 12:15 1.12E+5 2.23E+5 3.34E+5 6.69E+5 Siemens Industry, inc.

  • Page 32: Md-Xxhd Web App Overview

    The MD-xxHD Web App can be accessed by using the USB or Ethernet port. Macintosh users can configure the meter using the MD-xxHD Web App Interface by installing a driver which is available from the Siemens web site at www.dentinstruments.com/siemens Connect to Web App using USB 1.

  • Page 33: Macos Users

    7. Open Safari browser and type IP address 169.254.1.5 to access the MD-xxHD Web App 8. If no login credentials are setup, click on LOGIN button with blank for password. 9. The MD-xxHD Web App checks for login credentials and, if passed, opens Real Time Web Page. Siemens Industry, inc.

  • Page 34: Meter Installation - Details

    MD-xxHD meter. Meter Mounting Configurations 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.

  • Page 35: Installation Sequence

    Installation Sequence The following section illustrates the MD-12HD model. The MD-48HD components are slightly different, but follow the same procedure. STEP 1. Remove top cover screws (4x) and high voltage cover screws (2x) – provided. STEP 2. Locate, mark, and drill wall mounting points (2x–6x—customer supplied).
  • Page 36 STEP 3. Mount conduit fittings, conduits, and blanking plugs. STEP 4. Connect voltage leads DO NOT ENERGIZE METER WITH VOLTAGE COVER REMOVED. Siemens Industry, Inc.

  • Page 37: Connecting Voltage

    Connect 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. Siemens Industry, inc.

  • Page 38: Wiring The Md-Xxhd Meter In A 3-Wire, Split ɸ Service Panel

    EXAMPLE 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. Siemens Industry, Inc.

  • Page 39: Wiring The Md-Xxhd Meter In A 4-Wire, 3 ɸ Service Panel

    NOTE: The MD-xxHD Meter Series uses the Neutral Terminal as a voltage reference. For systems without a neutral conductor, Siemens suggests connecting a ground wire to this terminal. If the neutral terminal is left open, L-L measurements will be accurate, but L-N measurements may not be symmetric.

  • Page 40: Current Transformer Basics

    Use the Shield wire if provided (connect to PCB terminal marked S). Wiring Guide for CT Types Split, Hinged, and Solid RōCoil CTs Core CTs White: Positive White: Positive Black: Negative Brown: Negative (no shield) Bare Wire: Shield Siemens Industry, Inc.

  • Page 41: Wiring The Cts To The Md-Xxhd Meter

    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. Siemens Industry, inc.

  • Page 42: Communication And Verification - Details

    Signal Names—Some RS-485 devices use the terminology A/B while others use +/-. Note that A is (-) and B is (+). Many manufacturers incorrectly label the terminals. ▪ Bus Loading—The MD-xxHD meter is a 1/8 unit load allowing up to 256 like devices in parallel. Siemens Industry, Inc.

  • Page 43: Communication Verification

    Note that changes to the meter configuration are limited to the communication interface using the LCD. If additional changes (such as CT type) are required, they must be made using a software interface. Example LCD Navigation Siemens Industry, inc.

  • Page 44: Viewpoint Hd/Md-Xxhd Web App

    If the MD-xxHD meter is set to a static IP then its address should be assigned by an IT department to avoid multiple devices on the same network. This scheme is usually used when an RTU is expecting to find the meter at a specific IP address. Siemens Industry, Inc.

  • Page 45: Protocol Verification

    Modbus addresses are 1-240 (keeping in mind the MD-48HD requires 15 addresses beyond Element A or the MD-12HD requires 4 address beyond Element A). The slave address of the power meter sets the register address for ELEMENT A. Adjacent elements B, C, D, etc. are accessed by incrementing the slave address by 1.

  • Page 46: Pulse Inputs

    Pulse Inputs MD-12HD meters are equipped with 4 pulse inputs and MD-48HD meters (hardware version I) are equipped with two pulse inputs. Pulse counting supports accumulation of consumption data from any external meter using a dry contact (Form A Relay) or open collector outputs. The MD-xxHD pulse inputs are compatible with “low speed”...

  • Page 47: 12 Volt Auxiliary Power

    [0000]. A consequence of this is that both PIN registers need to be configured (i.e. changed from defaults) to implement a read only PIN, otherwise the situation may occur where a user Siemens Industry, inc.

  • Page 48: Read Only Permission Register

    PINs are also accessible as registers, but are encoded so that reading the value of the register through an RTU does not inform a user what the password is. This feature allows Siemens to support looking up forgotten PINs, if network access is available.

  • Page 49: Verification Of Installation

    The ViewPoint HD and the MD-xxHD Web App run PhaseChek™ continuously on all enabled elements and report low power factor in the real time values table by turning the text or by a using a red indicator. Siemens Industry, inc.

  • Page 50: Phase Checking By Phasor Plot

    MD-xxHD Web App: Real Time Values > (All power factors < 0.55 are shown in RED) LCD: Verify Installation > (LCD will list all elements having a PF < 0.55) Electrical Power Quadrants with Incorrect CT Phase shown Siemens Industry, Inc.

  • Page 51: Ct Orientation Check

    If a CT is discovered to be on backwards after the installation is complete, the direction of the CT can be reversed through a user configuration register designed for this purpose, called the “Flipper,” located at 2226, 2234, and 2235 or use ViewPoint HD’s meter setup. Siemens Industry, inc.

  • Page 52: Power Factor Convention

    HD can provide additional analysis of harmonic content in voltage and current by sampling the MD-xxHD raw data and performing digital signal processing on the signal. Using this method the individual harmonics levels can be observed. The results are presented in graphical form. Siemens Industry, Inc.

  • Page 53: Pre-Processing Aids

    Present Demand registers contain the highest average power consumption in any 15-minute interval and the average power consumption in the last 15-minute interval respectively. The Clear Peak Demand register is used to reset the peak demand detector. Siemens Industry, inc.

  • Page 54: Rtu Programming And Scripting - Details

    CT location. Registers providing data for an individual channel are also described as elements in their scope as a unique value exists for each Slave Address or BACnet object instance. Siemens Industry, Inc.

  • Page 55: System

    0 or 1 L2 – N or RōCoil Any > 0A -3.0˚ to +3.0˚ Any > 0 0 or 1 L3 – N or RōCoil Any > 0A -3.0˚ to +3.0˚ Any > 0 0 or 1 Siemens Industry, inc.
  • Page 56 Even though disabled channels are not used in calculations and report 0.0 they still contain configuration information. It is suggested that they be set to a known value rather than left at defaults to facilitate configuration validation by the RTU. Siemens Industry, Inc.

  • Page 57: Configuring System Registers

    MUST be a NUL character (ASCII 0). The meter will process the entire string only if these two conditions are met, otherwise the data is ignored. This special processing has been implemented to protect partial updates for network settings. Siemens Industry, inc.
  • Page 58 #REGS LN DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 01 87 00 00 00 17 01 10 04 37 00 08 10 31 39 32 2E 31 36 38 2E 32 2E 39 00 00 00 00 00 Siemens Industry, Inc.
  • Page 59 01 10 0A 39 00 10 20 4D 61 69 6E 73 20 62 6C 64 20 31 30 31 20 00 00 DAT08 DAT09 DAT10 DAT11 DAT12 DAT13 DAT14 DAT15 CRC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3A 18 Siemens Industry, inc.
  • Page 60 01 87 00 00 00 27 01 10 04 37 00 10 20 4D 61 69 6E 73 20 62 6C 64 20 31 30 DAT06 DAT07 DAT08 DAT09 DAT10 DAT11 DAT12 DAT13 DAT14 DAT15 31 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Siemens Industry, Inc.

  • Page 61: Floating Point Registry Entry

    Step 1. Convert 100.00 into an IEEE 754 floating point format by entering the number in a conversion utility. a. Internet Utility. Example: https://www.h-schmidt.net/FloatConverter/IEEE754.html b. ViewPoint HD a) Internet Utility The 16-bit floating point representation of 100.00 is shown below as 0x42C8 0x0000. These are the required MSW and LSW register contents respectively. Siemens Industry, inc.
  • Page 62 Refer to the MS Excel Register List (USB drive or at www.DENTinstruments.com) b. Use ViewPoint HD to discover the address of displayed data. a) Open the MS Excel Register List and locate the CH1 CT Full Scale Rating Registers under USER CONFIG POINTS group. Siemens Industry, Inc.
  • Page 63 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 CRC Calculator (a web utility can be helpful) Siemens Industry, inc.

  • Page 64: Commands Requiring A Processor Reset

    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) Siemens Industry, Inc.

  • Page 65: Bacnet

    The MD-xxHD meter supports the Structured View (SV) object container. If this option is supported in the BACnet exploring tool, objects will be grouped logically into elements which can be named to reflect electrical or physical locations, followed by system objects, as shown below for a MD-12HD having elements A-D.
  • Page 66 User Boolean Settings Multi State Value: Enumerated Settings BitString Value: Bitfield Status Words and Settings Positive Integer Value: Restricted Range User Settings Character String Value: User Text string settings The following online BACnet resources are also helpful. http://www.bacnet.org/ Siemens Industry, Inc.

  • Page 67: Appendix A-Md-Xxhd Lcd Menu Navigation

    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. Siemens Industry, Inc.

  • Page 68: Menu Navigation

    Menu Navigation Siemens Industry, Inc.

  • Page 69: Communication Navigation

    Communication Navigation Siemens Industry, inc.

  • Page 70: Appendix B-Enclosure Dimensions

    Appendix B—Enclosure Dimensions MD-48HD Enclosure Dimensions MD-12HD Enclosure Dimensions Siemens Industry, Inc.

  • Page 71: Appendix C-Mounting Templates

    Appendix C—Mounting Templates Enclosure Internal Mounting Hole Locations MD-48HD and MD-12HD Enclosure Drill Templates Siemens Industry, Inc.

  • Page 72: Sheet Metal Plate Mounting Hole Locations

    Sheet Metal Plate Mounting Hole Locations MD-48HD and MD-12HD Mounting Plate Drill Templates Siemens Industry, Inc.

  • Page 73: Appendix D- Md-Xxhd Technical Specifications

    90-346 Volts AC Line-to-Neutral, 600V Line-to-Line, CAT III. Two voltage reference inputs (MD-48HD only) Current Channels 12 (MD-12HD) or 48 (MD-48HD) channels, 0.525 VAC max, 333 mV CTs, 0-4,000 Amps depending on current transducer Maximum Current Input 150% of current transducer rating (mV CTs) to maintain accuracy. Measure up to 4000A with RōCoil CTs.
  • Page 74 Mounting Enclosure or Panel Mount High Voltage Cover IP30. Available with MD-48HD/MD-12HD Enclosure and MD-48HD Plate models Operating Temperature -20 to + 60⁰ C (-4 to 140⁰ F) (the colder the temperature the more voltage is needed to power the board)

This manual is also suitable for:

Md-48hd

Table of Contents