Siemens MD-BMS User manual

125-202
Building Technologies
06/06/2017 125-202, Rev.CA
MD-BMS and MD-BMED Power
Meters
User Guide

Copyright Notice
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Building Technologies 125-202
06/06/2017
Copyright Notice
Notice
Document information is subject to change without notice by Siemens Industry, Inc.
Companies, names, and various data used in examples are fictitious unless otherwise
noted. No part of this document may be reproduced or transmitted in any form or by
any means, electronic or mechanical, for any purpose, without 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 manual, please
submit them to: [e-mail]
Other product or company names mentioned herein may be the trademarks of their
respective owners.
Printed in the USA.

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Table of Contents
Introduction
................................
................................
................................
.................
5
Product Description
................................
................................
................................
.........
5
Certificate of Calibration
................................
................................
................................
..
7
Warranty
................................
................................
................................
.........................
8
Meter Anatomy
................................
................................
................................
................
9
Safety Summary and Specifications
................................
................................
.................
9
Sommaire des informations de séc
urité
................................
................................
....
11
MD
-
BMS and MD
-
BMED Technical Specifications
................................
....................
13
Maintenance
................................
................................
................................
..................
16
Prepping for Installation
................................
................................
...............................
17
Where to Obtain ViewPoint Software
................................
................................
.............
17
Installing the ViewPoint Software
................................
................................
...................
18
Connecting a Communication Cable
................................
................................
..............
19
Connecting and Communicating using a USB Connection
................................
........
19
Connecting and Communicating Using an Ethernet (TCP/IP) Connection (MD
-
BMED
Communications LEDs
................................
................................
................................
..
28
Version Control
................................
................................
................................
..............
29
Meter Setup
................................
................................
................................
...................
29
Entering Wiring Information for an Element
................................
...............................
30
Selecting a Scalar
................................
................................
................................
.....
32
Comms Setup (Communications Setup)
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................................
........
35
RS
-
485 Settings
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................................
................................
.......
35
BACnet Device Settings
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................................
...........................
35
Ethernet Settings
................................
................................
................................
......
36
Connecting the Ports
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................................
................................
.....
36
Establishing Comm
unication Protocol
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................................
............
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
-
BMS and MD
-
BMED Power Meters
...............................
41
Completing the Installation
................................
................................
.............................
42
Using the Digital Pulse Output Port Functio
n
................................
................................
..
42
Modbus Output Port Registers
................................
................................
..................
43
BACnet Output Port Objects
................................
................................
.....................
43
Wiring CTs
................................
................................
................................
....................
44
Completi
ng the Wiring Connections
-
RS
-
485, Voltage Leads and CTs
.....................
45
Connecting Split
-
Core Mil
livolt CTs to a Load
................................
...........................
47
Connecting Rogowski Coil CTs to a Load
................................
................................
.
49
CT Wire Lead Polarity
................................
................................
...............................
50
Connecting the Voltage
................................
................................
................................
.
50

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Powering the Meter
................................
................................
................................
...
51
MD
-
BMS or MD
-
BMED Single
-
Phase Conne
ctions
................................
....................
51
MD
-
BMS and MD
-
BMED Power Meters Wiring Diagrams
................................
..............
52
Checking Phases
................................
................................
................................
..........
57
Verifying the MD
-
BM and MD
-
BMS Power Meter Setup Using the LEDs
....................
57
Verifying Installation with ViewPoint Software
................................
................................
58
Real
-
Time Values
................................
................................
................................
......
59
Read/Write Registers
–
Read/Set Objects
................................
................................
..
61
Firmware
................................
................................
................................
...................
63
Appendices
................................
................................
................................
...............
65
Appendix A
-
MD
-
BMS and MD
-
BMED Power Meters BACnet Analog Value Objects
.....
65
Configuration Objects (10020
-
13000)
................................
................................
......
69
Pulse Output/Input Objects
................................
................................
........................
71
Device Status Objects
................................
................................
...............................
71
Positive Power/Energy Accumulator Objects
................................
..............................
71
Negative Power/Energy Accumulator Objects
................................
............................
72
Appendix B
-
MD
-
BMS and MD
-
BMED Power Meters Modbus Absolute/Net Value
Protocol Commands
................................
................................
................................
..
86
Appendix C
-
C
onnecting 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 Meter
92
Downloading and Installing Firmware
................................
................................
.........
92
Verifying Installation with ViewPoint Software
................................
............................
92
Appendix E
–
Modbus VERIS H8035/H8036 Emulation
................................
..................
95
Appendix F
-
Decimal to Hexad
ecimal Conversion Table
................................
.............
100
Appendix G
-
MD
-
BMED with Visual Display
................................
................................
102
Appendix H
-
Troubleshooting
................................
................................
......................
104
Troubleshooting Communication Issues
................................
................................
..
104
Appendix I
-
Core Measurement Parameters: Voltage, Current, and Frequency
............
106
Appendix J
-
Core Measurement Parameters: Power Factor
................................
........
108
Appendix K
-
Core Measurement Parameters
-
Power
................................
.................
110
Appendix L
-
Cor
e Measurement Parameters
-
Energy
................................
................
115
Frequently Asked Questions
-
FAQs
................................
................................
...........
118
Glossary
................................
................................
................................
.................
120

Introduction
Product Description
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Introduction
Product Description
MD-BMS and MD-BMED Power Meters monitor the voltage, current, power, power
factor, energy, and many other electrical parameters on single- and three-phase
electrical systems. Each MD-BMS and MD-BMED meter uses direct connections to
each phase of the voltage, and uses current transformers to monitor each phase of the
current. Information on energy use, demand, power factor, line frequency, and more
are derived from the voltage and current inputs.
The communications interface to the meters is an RS-485 serial or Ethernet connection
that uses the BACnet Master Slave Token Passing (MS/TP) protocol (default) or
Modbus protocol (user-selectable) for sending commands and retrieving data. A
separate remote terminal unit (RTU), Data Logger, or Building Management and
Control System is usually connected to the MD-BMS and MD-BMED meters to provide
data recording and trend logging plus a human interface or display.
The MD-BMS and MD-BMED meters are light-weight and compact enough to mount
within an electrical panel. They are used for long-term monitoring of electrical systems.
Up to 100 MD-BMS and MD-BMED serial meters can be connected to a single BACnet
MS/TP network for monitoring and recording power usage at multiple locations within a
single site. Up to 150 serial meters 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, or to toggle on
and off to control a remote device or relay.
The MD-BMED Power Meter includes a backlit visual display that cycles through meter
information and real-time values of Volts, Amps, KW, KVA, Power Factor, kWh, and so
on. See Appendix H .
Table 1: Product Numbers.
Part Number Power Meter Kit Description
MD-BMS Power Meter Bundled Kits, Standard
MD-BMS-3-CTSC-100A Meter with three 100A, split-core current transformers with 1" windows
MD-BMS-3-CTSC-200A Meter with three 200A, split-core current transformers with 1" windows
MD-BMS-3-CTSC-400A Meter with three 400A, split-core current transformers with 1.25" windows
MD-BMS-3-CTSC-600A Meter with three 600A, split-core current transformers with 2" windows
MD-BMS-3-RC-16 Meter with three 4000A, 16” Rogowski Coil CTs, with 5" diameter windows
MD-BMS-3-RC-36 Meter with three 4000A, 36” Rogowski Coil CTs with 10” diameter windows
MD-BMED Power Meter, with Ethernet and Display, Bundled Kits, Standard
MD-BMED-3-CTSC-100 Meter with display and Ethernet, and three 100A, split-core current transformers with 1" windows
MD- BMED-3-CTSC-200 Meter with display and Ethernet, and three 200A, split-core current transformers with 1" windows

Introduction
Product Description
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MD-BMED Power Meter, with Ethernet and Display, Bundled Kits, Standard
MD- BMED-3-CTSC-400 Meter with display and Ethernet, and three 400A, split-core current transformers with 1.25" windows
MD- BMED-3-CTSC-600 Meter with display and Ethernet, and three 600A, split-core current transformers with 2" windows
MD- BMED-3-RC-16 Meter with display and Ethernet, and three 4000A, 16” Rogowski Coil CTs with 5” diameter windows
MD- BMED-3-RC-36 Meter with display and Ethernet, and three 4000A, 36” Rogowski Coil CTs with 10” diameter windows
MD-BMS Power Meter Bundled Kits; Revenue Grade
MD-BMS-3-RGCT-50A Meter with three 50A, split-core current transformers with 0.5” windows
MD-BMS-3-RGCT-100A Meter with three 100A, split-core current transformers with 1.25” windows
MD-BMS-3-RCGT-200A Meter with three 200A, split-core current transformers with 1.25” windows
MD-BMS-3-RGCT-400A Meter with three 400A, split-core current transformers with 1.25” windows
MD-BMED Power Meter Bundled Kits; Revenue Grade with Display and Ethernet
MD-BMED-3-RGCT-50 Meter, display and Ethernet, three 50A, split-core current transformers with 0.5” windows
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).
Part Number Description
MD Power Meters ONLY, no CTs included (field configure to selected CTs onsite)
MD-BMS Power Meter Only, BACnet-Modbus
MD-BMED Power Meter Only, BACnet-Modbus with Display and Ethernet
Current Transformers (CTs), Split Core Models, Quantity 1
SCT-HSC-0050-U 50-Amp MINI hinged CT with 0.4“ window
SCT-HMC-0100-U 100-Amp, MIDI Hinged CT with 1“ window (used in MD-BM*-3-CTSC-100* meter kits)
SCT-HMC-0200-U 200-Amp, MINI Hinged CT with 1“ window (used in MD-BM*-3-CTSC-200* meter kits)
SCT-SCS-0050-U 50-Amp, Small Split Core CT with 0.75“ window
SCT-SCS-0100-U 100-Amp, Small Split Core CT with 0.75“ window
SCT-SCM-0100-U 100-Amp, Medium Split Core CT with 1.25“ window
SCT-SCM-0200-U 200-Amp, Medium Split Core CT with 1.25“ window
SCT-SCM-0400-U 400-Amp, Medium Split Core CT with 1.25“ window (used in MD-BM*-3-CTSC-400* meter kits
SCT-SCM-0600-U 600-Amp, Medium Split Core CT with 1.25“ window
SCT-SCL-0600-U 600-Amp, Large Split Core CT with 2“ window (used in MD-BM*-3-CTSC-600* meter kits)

Introduction
Product Description
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Current Transformers (CTs), Split Core Models, Quantity 1
SCT-SCL-1000-U 1000-Amp, Large Split Core CT with 2“ window
Current Transformers (CTs), Rogowski Coil Models, Quantity 1
SCT-R16-A4-U 4000-Amp, Rogowski Coil, 16“ wit 4.5“ window (used in MD-BM*-3RC-16 meter kits)
SCT-R24-A4-U 4000-Amp, Rogowski Coil, 24“ with 7“ window
SCT-R36-A4-U 4000 Amp, Rogowski Coil, 36“ with 10.8“ window (used in MD-BM*-3-RC-36 meter kits)
Current Transformers (CTs), Revenue Grade Split Core Models, Quantity 1
SCT-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 Toroidal Solid Core Models, Quantity 1
SCT-RGT12-0005-U 5-Amp, Revenue Grade, Toroidal Solid Core CT with 0.5“ window
SCT-RGT12-0020-U 20-Amp, Revenue Grade, Toroidal Solid Core CT with 0.5“ window
SCT-RGT123-0050-U 50-Amp, Revenue Grade, Toroidal Solid Core CT with 0.5“ window
SCT-RGT12-0100-U 100-Amp, Revenue Grade, Toroidal Solid Core CT with 0.5“ window

Introduction
Certificate of Calibration
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Certificate of Calibration
The MD-BMS and MD-BMED Power Meters include documents such as the Certificate
of Calibration (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 warranty.

Introduction
Meter Anatomy
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Meter Anatomy
Safety Summary and Specifications
This general safety information must be used by both the Logger operator and
servicing personnel. Siemens Industry, Inc. assumes no liability for user’s failure 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 disconnect all high voltage wiring before using or servicing
the meter.

Introduction
Safety Summary and Specifications
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CAUTION
Denotes caution.
Equipment damage or loss of data may occur if you do not follow a procedure as
specified. Using this device in a manner for which it is not intended may impair its
means of protection.
WARNING
Shock Hazard
Follow these steps in sequence when connecting the MD BMS and MD-BMED Power
Meters to prevent a shock hazard:
●De-energize the circuit to be monitored.
●Connect the Current Transformers to the phases being monitored.
●Connect the voltage leads to the different phases. Use proper safety equipment
(gloves and protective clothing) as required for the voltages being monitored.
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
DEN
OTES HIGH VOLTAGE.
RISK OF ELECTRICAL SHOCK. LIFE THREATENING VOLTAGES MAY BE
PRESENT. QUALIFIED PERSONNEL ONLY.
As with any high voltage electrical system, it is imperative that proper personal
protective equipment be worn before inspecting or servicing electrical equipment.
Before inspecting or servicing installed power meters, read and follow the Medium
Risk, NFPA Category 2 PPE requirements (see NFPA 70E, Section 9.1, NFPA 70E
PPE Selection Tables).
WARNING
MD
-
BMS, MD
-
BMED hazardous voltages e
xist.
There are no user-serviceable parts inside. Do not open the enclosure.