EDMI

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EDMI Meters

EDMI.png

Function Smart Meter
Connection RS232, Wi-Fi, Zigbee, Ethernet, RS422, RS485
Driver Status Release
Website http://www.edmi-meters.com
Distributor http://www.smartbuildingservices.com.au

EDMI is a smart meter that works well with the Switch Automation System because of its open protocols and many connection options. The common protocol works across all EDMI devices.

Contents

EDMI Config in Switch Builder

There are 2 main ways a EDMI can be set up. Either Live mode and Survey mode.

A Simple project showing a live EDMI meter and a survey EMI meter as viewed in the main diagram.

Live Mode

  1. Choose the Model of the EDMI you are using in your building and drag it into the Main Diagram
  2. Choose the EDMI RS485 converter.
  3. Make connections from the network switch to the EDMI RS485 converter to the EDMI meter.
  4. All the registers match the registry values of factory settings. Any of them can be changed if needed.
  5. In the address field use the EDMIs serial number.

Survey Mode

  1. Choose the Survey Model of the EDMI you are using in your building and drag it into the Main Diagram
  2. Choose the Survey EDMI RS485 converter.
  3. Make connections from the network switch to the EDMI RS485 converter to the EDMI meter.
  4. All the registers match the registry values of factory settings. Any of them can be changed if needed.
  5. In the address field use the EDMIs serial number.

Displaying EDMI properties on Control interfaces

Select the channel, Then create a Scenario with the Add button. Tick the appropriate Scenario type.

This Section will cover displaying the reading in gauges. For more information see Creating The User Interface
Much like other devices, the channels or properties of the EDMI must be put into a Scenario before it will appear on the Touchscreens or Hub Control Page. The only difference being that the property on the EDMI must be selected a indervidually placed in scenarios in stead of the device as a whole.

Calibration

Under the sensor properties menu you can set display names for the channels as well is choose a unit of measure and perform calibration. Each channel on EDMI my meter can be calibrated individually. This is often used to change the unit of measure, for example from Watts to kilowatts. Channels must be edited one at a time, Channels are selected from the drop-down box. It's best to give channels meaningful names at this stage.

Tagging for Switch Smart Hub

For more information see Tagging
In order to the data being collected by the EMI meter show up in the switch smart hub charts the channels must be tagged. This is not done in the switch builder rather be tagging tile in the switch smart hub.

EDMI RS485 Wiring

DB9 RJ45
DB9 RJ45
1 7
2 8
3 3
4 6
5 4

Sub-Metering Installation Manual

SECTION 1 – Overview & Process

Introduction

The meter installation program is an essential element in the measurement and subsequent management of energy.

Background

• The number of energy meters currently installed, their type, their location and any connection to Building Management Systems (BMS); • New meters required to allow comprehensive energy management; and • Electrical distribution network at the base.

The information collected was used to develop a list of circuits to be metered. The contractor will be responsible for identifying the best location for the meter installations, both for replacement meters and new installations.

Metering configuration

The meters are EDMI Mk10E or Mk6N. Details of the meters are available from [www.smartbuildingservices.com.au] . The meters will be delivered fully configured with modem and SIM card installed. The meter should begin to function as soon as power is applied. The LCD display will show whether each phase is wired up correctly and communication is established.

The current transformers are ESAA 0.5S extended range Class 0.5 metering CTs.

All additional components required for the installation of meters will be the responsibility of the Installation Contractor.

Scope of Works

The work is to proceed in three stages. This staged approach is to prevent equipment that is delivered to site remaining uninstalled for long periods because of unforeseeable delays:


Stage 1:

  • Preliminary assessments, identification of preferred locations, estimated installation hours, specific equipment needs (CT type, fuses or circuit breaker, meter test block, mounting panels etc.) and measurement of the mobile phone signal strength.
  • Gain approval to commit the installation hours.
  • Negotiate an installation schedule with the Base Contact that takes into account any power interruptions.
  • Order the equipment from the Project Manager.

Stage 2:

  • Installation of meter test blocks, current transformers (CT’s), voltage fuses or circuit breakers, meter mounting panels and associated wiring. All CTs are to be short-circuited and voltage connections made safe.

Stage 3:

  • Installation of the meter, radio modem, mounting of the aerial.
  • Phone the Project Manager or nominated meter reader to confirm that they can “see” the meter.

These stages may be repeated several times at a single base. All of the “easy” locations may be completed first, then the more difficult locations, then the locations that need to coordinate with programmed maintenance or long breaks like the Christmas stand down.

Email is to be used to keep track of instructions from the Project Manager, as evidence of approval to commit funds and for inventory tracking.

Roles & Responsibilities

The Project Manager is responsible for equipment procurement, equipment supply, installation contractor engagement, installation hours approval, contractor payment, meter communications and meter reading.


Installation Contractor: Will undertake all technical aspects of the installation activity. Co-ordinate with the Project Manager, Site Contact and Meter Reder to ensure the successful and timely installation of all metering points.

SECTION 2 – INSTALLATION AND COMMISSIONING

The installation has four major components – CTs, voltage connections, mobile phone network coverage, meter real estate. The selection of the “best” location for meters on a supply circuit will be influenced by all of these components.


Figure 1: Typical meter electrical connection (thanks to Ergon)

Current Transformers

Mk10-10-100-Amp-Whole-Current-Connectionsr.

Three types of solid core extended range metering CTs are available, 200/5A (45mm hole), 800/5A (85mm hole) and 1500/5A (112mm) with maximum ratings of 400A, 1600A and 3000A respectively. Dimensions are shown in Appendix A and specifications are shown below.

The smallest CT that is suitable for the job is to be used as this increases the accuracy of the metering.

Split core CTs will be considered if the load cannot be interrupted, conductors will be damaged if unbolted or many extra hours of installer effort (more than $300) will be required to fit solid core CTs. Many companies have a strong preference for the solid core CTs because they are more accurate, more durable and less expensive.


Figure 2: Solid core CTs and HRC fuses in purpose built CT enclosure. The bus bars are the “primary” conductor.
Mk10-10-100-Amp-Whole-Current-Connectionsr.


If an existing CT meter or ammeter is installed on the circuit to be metered, the existing CTs can be re-used if:

  • The CTs appear to be in good physical and electrical condition;
  • The CTs rated current is suitable for the circuit;
  • An electrical test indicates that they are working.

The CT wiring can be replaced or extended using double-screw connectors, so long as the total rated CT burden is not exceeded by the addition of the meter and extra wiring.

The 200/5A CTs supplied have a rated burden of 5VA at 5A (0.2 ohm). This corresponds to a maximum of 1.0V at the CT terminals at 200A primary current, or pro-rata for other currents.

The 800/5A and 1500/5A have a rated burden of 15VA (0.6 ohm) at the rated primary current. This corresponds to a maximum of 3.0V at the CT terminals at 800A or 1500A primary current, or pro-rata for other currents.

A new meter is probably the best test instrument to verify that the in-situ CTs are working correctly, so if it all looks good, install the new meter. If any of the CTs are found to be not working properly, replace them all as soon as practicable. If it will take more than one month, consider re-deploying the meter until the replacement CTs can be installed.

If the meter or ammeter connected to the CTs is to remain in service, the new meter can be placed in series with the other equipment so long as the CT burden is not exceeded. The new meter adds a burden of 0.5VA at 5A (0.02 ohm).

CT’s wiring is to be 7 stranded copper with a minimum 2.5 mm2 cross sectional area. Cabling specifications are covered in Table 1, below. Insulator colours are shown in Figure 1.

Table 1 – Cabling Specifications for CT’s
Rated Burden Max Circuit Length 2.5mm² Max Route Length 2.5mm² Max Circuit Length 4mm² Max Route Length 4mm² Max Circuit Length 6mm Max Route Length 6mm
5VA 15 metres 7.5 metres 25 metres 12.5 metres 36 metres 18 metres
15VA 45 metres 22.5 metres 80 metres 40 metres - -
Note:
  • 200/5 ratios CT’s have a burden of 5VA.
  • 800/5 and 1500/5 ratios CT’s have a burden of 15VA.


Table 1 – Cabling Specifications for CT’s

CT leads S1 are to be coloured in the same sequence as primary supply cables, i.e., red phase S1 will be red, white phase S1 will be white, blue phase S1 will be blue. S2 or return cables for all 3 phases are to be grey. (see figure 1)

Always short-circuit a CT when the meter is not connected and primary conductor current is flowing. The open circuit voltage can be dangerously high, electrical insulation can break down and the core will get hot. This will lead to the premature failure of the CT. When short-circuited, the secondary current substantially cancels the magnetic flux in the core. 2.2. Meter voltage connection All active voltage conductors are to be coloured according to their phase (red, white or blue). The black meter neutral can be picked up from the neutral link. All wires are to be seven strands 1.5sqmm or 2.5sqmm copper.

The meter and modem are powered by the voltage connection and pull less than 10VA / 50mA per phase. Gas arrestors are installed in the meter to protect it from voltage surges, and these are designed to operate a 6A fuse.

If voltages circuits are directly connected to the sub-station bus or main switchboard bus bars, HRC fuses are used because the fault currents in a bare-conductor short circuit can be extremely high. HRC fuses are always used with revenue meters because they are connected to the substation side of the main isolator so the meter continues to work even when the customer circuit is disconnected.

Meter voltages can be picked up from a nearby distribution board through a circuit breaker if this is easier and cheaper than using fuses. The voltage drop to the DB is to be less than 1.0V

Building sub meter installations can have up to 10 meters sharing a fuse or circuit breaker. Any fuse or CB supplying meters must not service any other load and must be clearly labelled. Any voltage fuses installed beneath a fixed panel must be safely accessible without the need to disconnect power to the switchboard.

Mobile phone aerial

The modem uses the Telstra GSM 900MHz / 1800MHz network and the aerial is to be placed in a location that produces signal strength of at least 40% as indicated by the meter LCD, but 60% signal strength or more is much preferred. The aerial generally works best when mounted vertically, but this may be affected by local signal reflections.

The Mk10 or Mk7 gives a signal strength number out of 32, so 40% corresponds to the number 13, 60% to the number 19.

A Mk7C meter with installed modem / aerial and a 3-pin power plug will be supplied to test signal strength. Make sure that any cupboard is closed or fixed panel is in place before believing the signal strength reading.

The modem is connected by a Cat5 data cable with RJ45 connectors at both ends. The meter supplies power and data to the modem through this cable. Some pre-fabricated data cables use extremely thin conductors and cannot carry the necessary current to the modem, so “genuine” Cat5 cables must be used.

The modem can be mounted up to 25m cable run away from the meter with good Cat5 cable, perhaps even further. Signal losses in the modem cable are negligible (19200bps RS232), whereas the aerial cable loses about half of the signal energy every three metres. The modem / aerial installation location in order of preference is:

  1. Modem under meter terminal cover, 15cm data cable, aerial also inside terminal cover, 10cm aerial coaxial cable (this will not work inside a metal meter box!);
  2. Modem under terminal cover, 15cm data cable, aerial within 2m coax run of meter;
  3. Modem up to 25m cable run away from meter, aerial coax 10cm;
  4. Modem up to 25m cable run away from meter, aerial coax 2m.

If the carrier network signal strength is too low, we have the alternative of another carrier (Optus, Vodafone) or another network (NextG), a high-gain aerial or fixed wire phone line. Discuss this with the Project Manager.

Some modems will be replaced in 2009 with “Zigbee” 2.4GHz wireless data units that link meters to each other, allowing them to share a GSM modem. The Zigbee units will have an integrated aerial. Modem and aerial placement may be different with Zigbee units.

Meter mounting panel, meter test blocks

The EDMI Mk10, EDMI Mk10E or EDMI Mk6N are physically large (18cm wide, 26cm tall) and have a footprint almost as large as an A4 sheet of paper.

If there is not room on the switchboard, install a meter mounting panel. If the location is awkward or unusual, consult the site contact or Project Manager. Installations are not to intrude into passageways or present any safety hazard.

The meter is to remain accessible to be read, maintained or replaced without the need to disconnect power from the switchboard. This generally means that it is not to be installed behind a fixed panel containing live busbars or exposed lugs.

Meter test blocks are to be installed where this will help with the installation or maintenance of the meters. These are about as large as an A4 sheet folded in half (A5).


Figure 3: Meter panel with Mk6 meters and test blocks

Kiosk sub stations may require a free-standing meter enclosure. The modem has a maximum operating temperature of 55C and will fail if in full sun. The meter has a maximum operating temperature of 70C. Ensure adequate shading and air circulation.

The meter and modem are to remain clear of strong magnetic fields around heavy bus bars. Magnetic fields can saturate current transformers inside the meter and induce potentials that reduce meter accuracy. The minimum clearance for rated current is shown below.

Rated current Spacing mm
150 100
400 500
600 700
1000 900
1500 1200
2000 1400
3000 1700
4000 2000


Meters

The meters are pre-configured and should connect to the mobile phone network when power is applied and the modem is connected. In the configuration at July 2008, the modems will register with the wireless-internet and “push” data when first connected and each hour thereafter.

Verify that all elements of the installation are working correctly when the meter, fuses and CTs are installed.

The LCD display scrolls when the “select” button is pressed. When the button is held down for about 2 seconds, the “set” scrolls from A to B to C to D. The pattern is shown in figure 4 below.

Figure 4: Meter LCD display scroll pattern

Signal strength: On the Mk6N meter with software at July 2008, the signal strength is not updated, but is a sample taken at the moment when the modem starts up.

CT Ratio: If this is not the same as the installed CT, scale the test results accordingly and notify the project manager.

Current: Measure the current in each primary conductor and compare it to the line current displayed on the meter. The Mk6N LCD can display all the three line voltages and currents at the same time.

Voltage: Each phase should display a voltage around 240V.

Power: In Set B, scroll the display to verify the measured power in each phase. If, for example, “PhA W” (power in watts phase A) is negative, the CT may be backwards or connected to the wrong phase.

Modem: The modem status is shown in brief “announcements” on the meter LCD. If all is going well, it shows initialization and finally “GPRS Event Connected”.

The SIM is inserted into the modem under the small removable cover, with square end inwards and the gold contacts down.

The modem may need to be unplugged and re-connected to force another “data push”.

Safety

All works must comply with AS/NZS 3000. Safety checks to be carried out on all new and modified work to ensure areas are electrically safe prior to reconnection of electrical supply. Fuse holders and fuses are to be installed, and cover panel for meter test block installed

All doors, panels and covers must be closed, remounted or otherwise made safe.

All changes and modifications to be clearly identified using certified Danger tags, indicating the status of the equipment, the installer and there contact details.

Area to be left in a clean and safe condition when work is completed. All packaging and garbage is to be removed and disposed of responsibly

Labelling

Permanent Dymo type labels are to be used. Preferably black print on white tape at least 12mm wide. Local labelling standards may be followed.

External labelling exposed to the weather may need to meet additional requirements.

Local labelling standards should be followed if more appropriate.

Record keeping

Records of the installation must be left with the Site Contact and sent to the Project Manager. Details are to include the meter and CT serial numbers. This is essential to prevent the meter from being “lost” and to make sense of the recorded energy surveys.

Records are to include photographs showing the CTs, meter, modem and fuse installation and labels. Marked up electrical and spatial drawings are to show the location of the meter, the circuit being measured and the load or facility fed by the circuit.

Additional records may be required by the Project Manager.

EDMI ENERGY METER RS485 BUS

The following provisions shall be made in the use of EDMI Energy Meters. This document shall be read in conjunction with EDMI metering specification documents. All interconnecting 4-wire RS485 cabling shall be stranded Cat5e or Cat6 data cabling (NOT solid) between all meters/loggers and LAN2Serial converters. All cabling will be labelled clearly at each termination and shall be coloured differently from any other CAT5/data cabling on the site. PURPLE Cat5e cable is to be used. The following conductors shall be used throughout the installation:

TERMINAL CAT5 CONDUCTOR
TX + GREEN / WHITE
TX - GREEN
RX + ORANGE / WHITE
RX - ORANGE
GND BROWN

Meters shall be located where indicated on drawings and shall be interconnected on a 4-wire RS 485 multi-drop communications system. No more than fifty (50) meters will be on any single multi-drop line. All multi-drop lines will terminate at an 8 or 16 Port RS485 to Ethernet converter located in the managers office. Provide additional LAN routers as necessary to connect all meters to the one system.

Additional Details

Standards and Codes

All local and National Electrical and Building Codes (Australian Standards) are applicable and must be adhered to. Network standards are to be considered as a guide as the meters are to be installed on a privately owned network.

Australian Standards, Laws and Guidelines

AS/NZS 3000 – ‘Electrical Installations’ (Wiring Rules): AS/NZS 1939 – ‘Degrees of Protection Provided by Enclosures for Electrical Equipment’; AS/NZS 3147 – Cable Manufacturing; AS/NZS 61000 – ‘Electromagnetic Compatibility (EMC)’; AS/NZS 62000 – Various Standards in this series; AS/NZS 60044.1-2003 – Current Transformers; AS/NZS 60044.2-2003 – Voltage Transformers.

Electricity Act 1994; Electricity Safety Act/Regulations 2002; National Electricity Rules.

Set Up Guide

EDMIsetup.png

  • In the above diagram, a parallel smart meter and flow meters are installed to the project. The flow meters have pulse outputs coupled to the EMS smart meter, with the data being aggregated via a 4-wire RS485 transport.
  • Connection method is via a Moxa NPort 5150 or equivalent RS485 - TCP/IP adapter. Cabling is to be a 4-wire RS485 transport over Cat5e or Cat6 terminated to RJ45 plugs. Each meter point tees off, and therefore requires the termination of 2x RJ45 plugs in the main bus, and 2 additional RJ45 plugs on the drop cable to the meter. The drop cable could be a standard pre-manufactured type if installation allows.
  • Data bus cable is to be clearly labelled and differentiated from that of Ethernet data.
  • The EDMI Atlas range has its RS485 data bus terminated to RJ45 sockets. As such, RJ45 socket splitters are required to create cable drops to each meter on the RS485 bus. 1 per meter is supplied.
  • Supported registers are Total kWh, Gas, Hot & Cold water pulse inputs and can be extended if required (on application).
  • Note that scaling factors applied in the EDMI firmware below 0.0 are not capable of being read with resolution - make scaling factors 1x or above. Please contact Rob Stewart at Smart Building Services on +61 7 3285-4344 for more information
  • The BMS collects and distributes data to the web for trend analysis, and to the IHD on demand from the unit holder.
  • The Mk7 and Mk10 meters have 4x pulse inputs for connection to flow meters. See “Cabling” section for information on all cabling requirements. The registers for the pulse inputs are to be programmed by authorized and certified EDMI programmers. For information see Smart Building Services on the aforementioned contact details.

EDMI Meter RS-232/485/422 Wiring Guide

RS232

RJ45 PIN-OUT FOR ALL EDMI ‘ATLAS’ SERIES METERS (MK10/MK10A/MK7C)

Pin Mk10A / Mk7C (Enhanced) EIA/TIA T568A Colour

(Std. SBS Patch Lead)

To DB9 pin
1 +v power 12-18v 3.6 w (if modem power fitted) Green/White N/C
2 N/C Green N/C
3 N/C Orange/White N/C
4 GND Blue 5
5 Rx Blue/White 2
6 Tx Orange 3
7 N/C Brown/White N/C
8 N/C Brown N/C


RS422/485

RJ45 PIN-OUT FOR ALL EDMI ‘ATLAS’ SERIES METERS (MK10/MK10A/MK7C)

Pin Mk10A / Mk7C (Enhanced) EIA/TIA T568A Colour

(Std. SBS Patch Lead)

1 +v power 12-18v 3.6 w (if modem power fitted) Green/White
2 N/C Green
3 Tx+ Orange/White
4 GND Blue
5 N/C Blue/White
6 Tx- Orange
7 Rx- Brown/White
8 Rx+ Brown
RJ45 PLUG front view: RJ45PlugFront.png RJ45 SOCKET looking in: RJ45SocketFront.png

For wiring daisy chain between meters, use 1-to-1 Cat5e patch leads and 1-to-1 8P8C RJ45 splitters. If doing your own terminations (i.e.: making your own patch-leads) use T568-A standard as above.

METERS WITH SCREW TERMINALS

For meters that have 5 screw terminals, such as the earlier “Genius” and “Atlas” series meters instead of an RJ45 socket for RS-485/422 comms, cut the end off a patch lead and wire it up to the screw terminals based on the conductor colour code above. This makes it easier to work with and test as you do not need to rewire anything, just plug and unplug the meter from the bus Use the same 8P8C parallel splitters as per the later meters.

Note: that pinouts are different on MK6 and MK10 models These are the screw terminals (left to right when facing the meter mounted on the wall):

Mk10 Screw Terminals (Early “Atlas” Series)
Tx+ Tx- Rx+ Rx- GND
Org/W Org Brn Brn/W Blue
MK6 Screw Terminals (Early “Genius” Series)
GND Rx- Tx+ Rx+ Tx-
Blue Brn/W Org/W Brn Org

Terminating to a Serial Device Server:

At the end of RS-485 Network, when connecting to a Serial Device Server with screw terminals (or similar) you must crossover the Tx to Rx and vice-versa. Example:

  • EDMI DaisyChain.jpg

So assuming that the T568-A standard has been followed, this would be typical wiring:

METER SIDE Colour CROSSES OVER DEVICE SERVER SIDE (DB9 Adapter)
Tx+ Orange/White To RX+
Tx- Orange To RX-
Rx+ Brown To TX+
Rx- Brown/White To TX-
GND Blue To GND

NOTES:

  1. Choose 4-wire RS422 on the Serial Device Server.
  2. Note that no Termination Resistors should be fitted.
  3. Please ensure that all wiring is done in Daisy Chain format. Branching out or ‘Star’ configuration can cause all kinds of errors (reflections) and will not be accepted/guaranteed.

RS482/422 BUS LENGTH:

With larger networks over 60 meters/loggers it becomes necessary to divide up the network into smaller busses or “Loops”. Whilst a theoretical maximum of 120 meters/loggers can be installed on the one daisy-chained bus (or “Loop”), we do not recommend “loops” of over 60 meters/loggers. This is because you may want to expand the system in the future (adding meters/loggers) and also for bus fault-finding purposes. In addition, large networks slow the speed of meter reads as only one (1) meter can be queried at any one time on the bus. Theoretical cable length for each bus is 1500m (total) at 9600 baud, or 800m total at 19200 baud, however we would recommend a maximum of 1200m (9600 baud) and 500m (19200 baud).

Pulse input connections for ‘atlas’ active input meters

The Mk7C and Mk10A meters are available with programmable pulse inputs and outputs. The pulse inputs are an “active” 12v input. i.e.: an isolated (8kv) 12v power supply is supplied by the meter. This makes it very simple to connect an input directly to any sort of voltage-free pulse source, such as those found in water meters (reed switch type), gas meters (via an intrinsic barrier), relays or other ‘dumb’ electricity meters with S0 pulse outputs. The inputs are programmable and the k-factors (or pulse ‘weight’) are able to be programmed into the meter. For instance, say a ‘dumb’ electricity meter was connected to a pulse input. The ‘dumb’ electricity meter had an impulse ratio of 800 impulses/kWh. It is possible to program the input with a ‘weight’ of 1 pulse = 1.25 Wh. If displayed on screen, the true reading/total can be shown in kWh. There is no need to apply any multipliers manually.

Logging pulses

Pulse inputs can be logged and recorded as time-series interval data in the meter load survey, just as the meters own energy can be recorded. This allows the EDMI meter to act as a data logger recording load-surveys (or load profiles) for each pulse input. Different rates can also be applied, in the same way.

Pulse outputs

Similarly, the pulse output can be programmed to output pulses for any of the meters parameters (kWh, kVar’s etc). Again, the pulse weight can be changed and the duration of the pulse can be changed (down to 50m/s)

Cable type and distance

Each pulse input can be wired using stranded Cat5e cable or ‘bell’ wire. Solid core cable should not be used. Screw terminals are provided for easy termination. Bell wire should be terminated using bootlace connectors. We find stranded Cat5e cable to be useful when wiring to water meters as the conductor size is similar to the pulse cables on most common water meters. Termination between the Cat5e cable and the water meter cable should be via silicone-gel filled ScotchLok™ connectors. It is important that these connections are tested for continuity at time of commissioning and are secreted inside a junction box or wall cavity. (Via a blank wall plate) Cable length can be up to 250m when using Cat5e cable.

Consistency when cabling

It is important to keep the same inputs on different meters consistent. In other words, if Pulse Input 1 is used for “Cold Water” and Pulse Input 2 is “Hot Water”, make Pulse Input 1 “Cold Water” on every meter in the building and likewise make Pulse Input 2 “Hot Water” on every meter in the building.

Typical mk7c pulse input connections

Mk7C PulseWiring.png

Typical mk10a pulse input connections

Mk10A PulseWiring.png

Moxa nPort settings for EDMI

Moxa nPort - EDMI settings - Operation modes
Moxa nPort - EDMI settings - Serial settings

Configure the Operating settings

Property Value
Baud Rate 9600
Data bits 8
Stop bits 1
Parity None
Flow control None
FIFO Enable

Select RS-232 or RS-485 4 wire as appropriate from the Interface property box.

Registers

EDMI uses a standard set of registers that are viewable in the EDMI commissioning software. For quick reference these commonly used registers are provided on the wiki. If these do not work then consult your EDMI programmer.

If you do not want to monitor a property of the meter, then do not enter a register number into the field.

Register ID Register Description
Pulse 1 0469
Pulse 2 0569
Pulse 3 0669
Pulse 4 0769
Pulse 5 0869
Pulse 6 0969
Total wH 1E00
Total W E033
Total V
Ch1 wH 1E01
Ch1 W E030
Ch1 V E000
Ch2 wH 1E02
Ch2 W E031
Ch2 V E001
Ch3 wH 1E03
Ch3 W E032
Ch3 V E002

EDMI Mk6E metrics that can be graphed on Switch Automation platform

Instantaneous measurement

  • Current (A-C)
  • Current offset (A-C)
  • Voltage (A-C)
  • Voltage offset (A-C)
  • Phase angles (A-C+total)
    • Angle between VTA and VTB
    • Angle between VTA and VTC
    • Power Factor
  • Absolute current angle (A-C)
  • Absolute voltage angle (A-C)
  • Active power (A-C+total)
  • Fund active power (A-C+total)
  • Reactive power (A-C+total)
  • Apparent power (A-C+total)
  • Frequency


Gated Energy

  • Import Wh (A-C+total)
  • Export Wh (A-C+total)
  • Import varh (A-C+total)
  • Export vah (A-C+total)
  • Import VAh (A-C+total)
  • Export VAh (A-C+total)
  • Import Fund VAh (A-C+total)
  • Export Fund VAh (A-C+total)


Harmonics

  • Voltage factors
    • Fund RMS
    • Distortion
    • Zero seq
    • Positive seq
    • Negative seq
  • Voltage harm (A-C)
  • Current factors
    • Fund RMS
    • Distortion
    • Zero seq
    • Positive seq
    • Negative seq
  • Current harm (A-C)


Pulsing inputs (max 6)


See also

Personal tools
Namespaces

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