CET PMC-512-D User Manual

PMC-512-D

DC Multi-Circuit Power Monitor

User Manual

Version: V1.0

December 6, 2018

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This manual may not be reproduced in whole or in part by any means without the express

written permission from CET.

The information contained in this Manual is believed to be accurate at the time of

publication; however, CET assumes no responsibility for any errors which may appear here

and reserves the right to make changes without notice. Please consult CET or your local

representative for latest product specifications.

Standards Compliance

DANGER

This symbol indicates the presence of danger that may result in severe injury or death and

permanent equipment damage if proper precautions are not taken during the installation,

operation or maintenance of the device.

CAUTION

This symbol indicates the potential of personal injury or equipment damage if proper

precautions are not taken during the installation, operation or maintenance of the device.

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DANGER

Failure to observe the following instructions may result in severe injury or

death and/or equipment damage.

 Installation, operation and maintenance of the meter should only be

performed by qualified, competent personnel that have the appropriate

training and experience with high voltage and current devices. The meter

must be installed in accordance with all local and national electrical codes.

 Ensure that all incoming AC power and other power sources are turned OFF

before performing any work on the meter.

 Before connecting the meter to the power source, check the label on top of

the meter to ensure that it is equipped with the appropriate power supply,

and the correct voltage and current input specifications for your application.

 During normal operation of the meter, hazardous voltages are present on its

terminal strips and throughout the connected potential transformers (PT)

and current transformers (CT). PT and CT secondary circuits are capable of

generating lethal voltages and currents with their primary circuits energized.

Follow standard safety precautions while performing any installation or

service work (i.e. removing PT fuses, shorting CT secondaries, …etc).

 Do not use the meter for primary protection functions where failure of the

device can cause fire, injury or death. The meter should only be used for

shadow protection if needed.

 Under no circumstances should the meter be connected to a power source if

it is damaged.

 To prevent potential fire or shock hazard, do not expose the meter to rain or

moisture.

 Setup procedures must be performed only by qualified personnel familiar

with the instrument and its associated electrical equipment.

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Limited warranty

 CET offers the customer a minimum of 12-month functional warranty on the

meter for faulty parts or workmanship from the date of dispatch from the

distributor. This warranty is on a return to factory for repair basis.

 CET does not accept liability for any damage caused by meter malfunctions.

CET accepts no responsibility for the suitability of the meter to the application

for which it was purchased.

 Failure to install, set up or operate the meter according to the instructions

herein will void the warranty.

 Only CET’s duly authorized representative may open your meter. The unit

should only be opened in a fully anti-static environment. Failure to do so may

damage the electronic components and will void the warranty.

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Table of Contents

Chapter 1 Introduction ............................................................................................................................. 8

1.1 Overview .................................................................................................................................... 8

1.2 Features ..................................................................................................................................... 8

1.3 PMC-512-D’ application in Monitoring Management Systems ............................................... 10

1.4 Getting more information........................................................................................................ 10

2.1 Appearance .............................................................................................................................. 11

2.1.1 Main Unit ..................................................................................................................... 11

2.1.2 CTs ................................................................................................................................ 12

2.1.3 Switching Power Supplies ............................................................................................ 12

2.2 Unit Dimensions ....................................................................................................................... 12

2.3 Overall Setup ........................................................................................................................... 13

2.4 Mounting ................................................................................................................................. 13

2.4.1 Mounting PMC-512-D with 35mm DIN Rail ................................................................. 13

2.4.2 CTs Dimensions and Terminal Definitions.................................................................... 14

2.4.3 Switching Power Supply ............................................................................................... 17

2.5 Wiring Connections.................................................................................................................. 17

2.5.1 PMC-512-D Wiring ....................................................................................................... 17

2.5.2 Mains Hall Effect CT Wiring .......................................................................................... 19

2.5.3 Residual Current Hall Effect CT Wiring ......................................................................... 20

2.5.4 Branch Circuits Hall Effect CT Wiring ........................................................................... 20

2.5.5 Mains & Branch Circuits Hall Effect CT wiring (sharing the same PMC-DP) ................. 21

2.5.6 Communications Wiring ............................................................................................... 21

2.5.7 Digital Input Wiring ...................................................................................................... 22

2.5.8 Analog Input Wiring ..................................................................................................... 22

2.5.9 Digital Output Wiring ................................................................................................... 22

2.5.10 Power Supply Wiring .................................................................................................. 22

Chapter 3 User Interface ........................................................................................................................ 23

3.1 Front Panel LED Indicators ....................................................................................................... 23

3.2 Front Panel Buttons ................................................................................................................. 24

3.2.1 PMC-512-D Transducer Version ................................................................................... 24

3.2.2 Buttons on LCD PMC-512-D (Future) ........................................................................... 24

3.3 Data Display (Optional with the Future LCD Version) .............................................................. 25

3.3.1 Auto-Scroll.................................................................................................................... 25

3.3.2 Metering ...................................................................................................................... 25

3.3.3 Alarm Status ................................................................................................................. 25

3.3.4 DI/DO Status ................................................................................................................ 26

3.3.5 SOE Log ........................................................................................................................ 26

3.3.6 Information .................................................................................................................. 26

3.4 Setup and Maintenance via the Front Panel ........................................................................... 26

3.4.1 Making Setup Changes ................................................................................................. 26

3.4.2 Setup Menu .................................................................................................................. 28

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3.4.3 Configuration ............................................................................................................... 29

3.4.4 Maintenance ................................................................................................................ 31

Chapter 4 Applications ........................................................................................................................... 32

4.1 Inputs and Outputs .................................................................................................................. 32

4.1.1 Digital Inputs ................................................................................................................ 32

4.1.2 Analog Input ................................................................................................................. 32

4.1.3 Energy Pulse Outputs ................................................................................................... 32

4.2 Power, Energy and Demand .................................................................................................... 33

4.2.1 Basic Measurements .................................................................................................... 33

4.2.2 Energy Measurements ................................................................................................. 33

4.2.3 Demands ...................................................................................................................... 33

4.3 Alarm Setpoints ....................................................................................................................... 34

4.3.1 Alarm Status ................................................................................................................. 34

4.3.2 Universal Hysteresis and Current ON/OFF Status ........................................................ 34

4.3.3 Voltage Alarms and ON/OFF Status ............................................................................. 35

4.3.4 Mains Current Alarms .................................................................................................. 37

4.3.5 DC Residual Current Alarm .......................................................................................... 38

4.3.6 SM Current Alarm ........................................................................................................ 39

4.3.7 AI Alarm ....................................................................................................................... 41

4.3.8 DI Alarm ....................................................................................................................... 42

4.4 Data Logging ............................................................................................................................ 43

4.4.1 Peak Demand Log......................................................................................................... 43

4.4.2 Monthly Energy Log ..................................................................................................... 43

4.4.3 SOE Recorder ............................................................................................................... 43

4.4.4 Data Recorder Log ........................................................................................................ 43

Chapter 5 Modbus Register Map ........................................................................................................... 45

5.1 Status Register ......................................................................................................................... 45

5.1.1 General Status .............................................................................................................. 45

5.1.2 Instantaneous Alarm .................................................................................................... 46

5.1.3 Latched Alarm .............................................................................................................. 47

5.2 Basic Measurements ................................................................................................................ 48

5.3 Energy Measurements ............................................................................................................. 48

5.4 Monthly Energy Log ................................................................................................................. 48

5.5 Demands .................................................................................................................................. 49

5.5.1 Present Demands ......................................................................................................... 49

5.5.2 Peak Demand Log of This Month (Since Last Reset) .................................................... 50

5.5.3 Peak Demand Log of Last Month (Before Last Reset) .................................................. 50

5.6 Log Register ............................................................................................................................. 50

5.6.1 SOE Log ........................................................................................................................ 50

5.6.2 Data Recorder Log ........................................................................................................ 51

5.7 Device Setup ............................................................................................................................ 51

5.7.1 Basic Setup Parameters ............................................................................................... 51

5.7.2 AI Setup ........................................................................................................................ 52

5.7.3 DI Setup ........................................................................................................................ 52

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5.7.4 Communication Setup Parameters .............................................................................. 52

5.7.5 Alarm Setup ................................................................................................................. 53

5.7.6 SM Setup Parameters .................................................................................................. 54

5.7.7 Data Recorder Setup .................................................................................................... 55

5.8 Time Registers.......................................................................................................................... 55

5.9 Clear/Reset Control ................................................................................................................. 55

5.10 Remote Control...................................................................................................................... 56

5.11 Meter Information ................................................................................................................. 56

Appendix A - SOE Event Classification .................................................................................................... 58

Appendix B - Data Recorder Parameters ................................................................................................ 60

Appendix C - Technical Specifications .................................................................................................... 61

Appendix D - Accuracy Specifications..................................................................................................... 62

Appendix E - Standards Compliance ....................................................................................................... 63

Appendix F - Ordering Guide .................................................................................................................. 64

Contact us ............................................................................................................................................... 65

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Glossary

CET = CET Electric Technology AI = Analog Input DI = Digital Input DMD = Demand DO = Digital Output FIFO = First In First Out LED = Light Emitting Diode MB = Mega Byte PDU = Power Distribution Unit RTC = Real Time Clock SM = Sub Meter SOE = Sequence of Events

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Chapter 1 Introduction

This manual explains how to use the PMC-512-D DC Multi-Circuit Power Monitor.

This chapter provides an overview of the PMC-512-D and summarizes many of its key features.

1.1 Overview

The PMC-512-D Multi-Circuit Power Monitor is CET’s latest offer for Data Center, Telecom Base Station,

Renewable Energy, Commercial Building and Industrial Automation applications that require Direct

Current (DC) multi-circuit monitoring. Housed in compact DIN Rail Mountable enclosure, the PMC-512-

D is perfectly suited for applications that have high density metering requirements. The PMC-512-D

features quality construction with multifunction and high-accuracy measurements, one Mains Input and

up to 12 Branch Circuit Inputs. The PMC-512-D comes standard with 13 Digital Inputs for status

monitoring, one Relay Output for control or alarming as well as one Analogue Input for temperature

measurement or other analogue input applications. The standard SOE Log records all setup changes,

alarms and DI/DO operations in 1ms resolution. With dual RS-485 as standard feature supporting

Modbus RTU, the PMC-512-D can easily be deployed in a centralized monitoring and control system such

as CET’s PecStar® iEMS, for a DC Power Distribution Network.

Typical Applications

 Data Center DC Power Monitoring

 Photovoltaic DC Distribution Boards

 Telecom Base Station DC PDUs

 Other DC Power Distribution Applications

The above are just a few of the many applications. Contact CET Technical Support should you require

further assistance with your application.

1.2 Features

Ease of use

 Status LEDs - Run, Pulse and Comm. Activities

 Self-Diagnostic function

 Password-protected setup via the Front Panel (Future)

 Compact, DIN Rail Mount for easy installation

Measurements

Mains Measurements

 Option A (Mains Current Type = Incomer Current):

• Voltage

• Current, %Loading, Power and Energy

• Present Demand, Peak Demand for This Month and Last Month,

 Option B (Mains Current Type = Residual Current):

• Voltage

• Residual Current

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SM 1-12 Measurements (12 Branch Circuits Inputs)

 Current, %Loading, Power, and Energy

 Present Demand, Peak Demand for This Month and Last Month

Logs

Data Recording

 4MB Log Memory

 Up to 60 parameters @ min. 1-min recording interval for a max. 5,000 logs with timestamps

 24 Monthly Energy Logs – kWh for Mains and each SM

SOE Log

 512 FIFO events time-stamped to ±1ms resolution

 DI/DO changes, Alarms, Setup changes, Self-Diagnosis

Alarming

 4 Alarm Levels for Current and AI

 2 Alarm Levels for Voltage and Residual Current

 Status Input Alarm

 Programmable Digital Output Trigger

 Facilitate the comprehensive monitoring and alarming for Mains & 12 Sub-Meters.

Inputs and Outputs

 13xDI, external excitation @ 48VDC or 240VDC

 1xDO, mechanical relay output @ 250VAC/5A or 30VDC/5A

 1xAI (0-20mA or 4-20mA)

 LED Energy Pulse Output

Communications

 2xRS-485, Modbus RTU protocol

 Baud rate @ 1,200 to 57,600bps

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System Integration

The PMC-512-D is supported by CET’s PecStar iEMS. In addition, it can be easily integrated into

other 3rd party Automation, Energy Management or SCADA systems because of its support of

multiple communication ports and the Modbus RTU protocol.

1.3 PMC-512-D’ application in Monitoring Management Systems

1.4 Getting more information

Additional information is available from CET via the following sources:

 Visit www.cet-global.com

 Contact your local representative

 Contact CET directly via email @ support@cet-global.com

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Chapter 2 Installation

2.1 Appearance

2.1.1 Main Unit

Figure 2-1 Main Unit

F

igure 2-2 Main Unit Terminal Diagram

Caution

Installation of the PMC-512-D should only be performed by qualified, competent personnel that

have the appropriate training and experience with high voltage and current devices. The device must

be installed in accordance with all local and national electrical codes.

During the operation of the device, hazardous voltages are present at the input terminals. Failure to

observe precautions can result in serious or even fatal injury and equipment damage.

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2.1.2 CTs

Category Model Appearance

Branch Circuit

Hall Effect Solid-Core CT

(with Current Output)

PMC-DCT-50A-25mA-A

PMC-DCT-100A-50mA-A

PMC-DCT-200A-100mA-A

Mains Circuit

Hall Effect Split-Core CT

(with Voltage Output)

PMC-DCT-200A-4V-A

PMC-DCT-400A-4V-A PMC-DCT-600A-4V-A

PMC-DCT-800A-4V-A PMC-DCT-1000A-4V-A PMC-DCT-2000A-4V-A

Mains Hall Effect

DC Residual CT

(with Voltage Output)

PMC-DCT-50mA-5V-A

Table 2-1 CTs’ Appearances

2.1.3 Switching Power Supplies

Model Output Appearance

PMC-DP-240V

±12V

PMC-DP-48V ±12V

Table 2-2 Switching Power Supplies’ Appearance

2.2 Unit Dimensions

Figure 2-3 Main Unit Dimensions

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2.3 Overall Setup

Figure 2-4 Overall Setup

Figure 2-5 Overall Installation

2.4 Mounting

The PMC-512-D should be installed in a dry environment without dust and kept away from heat,

radiation and electrical noise sources. The PMC-512-D is usually installed inside the PDU cabinet.

Please reserve enough room for other accessories and make it convenient for future maintenance.

2.4.1 Mounting PMC-512-D with 35mm DIN Rail

Installation steps:

 Pre-drill the mounting holes for the DIN rail and ensure it is already in place before installation.

 Move the installation clips at the back of the PMC-512-D downward to the “unlock” position.

 Align the top of the mounting channel at the back of the PMC-512-D at an angle against the top of

the DIN rail as shown in figure below.

 Rotate the bottom of the PMC-512-D towards the back while applying a slight pressure to ensure

that the device is completely and securely fixed on to the DIN rail.

 Push the installation clips upward to the “lock” position to secure the PMC-512-D on to the DIN rail.

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Figure 2-6 Mounting Main Unit

2.4.2 CTs Dimensions and Terminal Definitions

There are multiple types of CTs available for the Mains Input, or DC Residual Current Input and Branch

Inputs. It’s extremely important for the users to understand that the Hall Effect Split-Core CTs and DC

Residual CT for the Mains Input have a Voltage Output while the Hall Effect CTs for the Branch Circuits

have a Current Output. Caution should be exercised during the installation of the Hall Effect CTs for the

Mains and Branch Inputs. Using incorrect CTs for the Mains and Branch Inputs may cause permanent

damage to the PMC-512-D. Please refer to Appendix C for their complete specifications and select the

appropriate CTs for your applications.

The following figures describe the dimensions for the various CTs and the definitions for their terminals.

2.4.2.1 200A Mains Hall Effect Split-Core CT (PMC-DCT-200A-4V-A)

Model

A B C D E F G

PMC-DCT-200A-4V-A

Ø58

Ø35

84

78

66

16

4.5

Unit: mm

Figure 2-7 PMC-DCT-200A-4V-A Dimensions

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2.4.2.2 400A/600A Mains Hall Effect Split-Core CTs (PMC-DCT-400A-4V-A & PMC-DCT-600A-4V-A)

Model

A B C D E F G H I

PMC-DCT-400A-4V-A

48.5

13

15

42

92

31.5

21.5

16

15

PMC-DCT-600A-4V-A

48.5

13

15

42

92

31.5

21.5

16

15

Unit: mm

Figure 2-8 PMC-DCT-400A-4V-A & PMC-DCT-600A-4V-A CTs Dimensions

2.4.2.3 800A Mains Hall Effect Split-Core CT (PMC-DCT-800A-4V-A)

Model

A B C D E F G

H

PMC-DCT-800A-4V-A

108

64

120

16

62

110

Ø5.5

10

Model

I J K L M N O

PMC-DCT-800A-4V-A

44

15.5

4-Ø2.2

8

20

25

46

Unit: mm

Figure 2-9 PMC-DCT-800A-4V-A Dimension

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2.4.2.4 1000A/2000A Mains Hall Effect Split-Core CTs (PMC-DCT-1000A-4V-A & PMC-DCT-2000A-4V-A)

Model

A B C D E F G

PMC-DCT-1000A-4V-A

99.5

155

169

42

86

M4.5

30

PMC-DCT-2000A-4V-A

99.5

155

169

42

86

M4.5

30

Model

H I J K L M N

PMC-DCT-1000A-4V-A

84.5

105

5.5 8 20

25

46.5

PMC-DCT-2000A-4V-A

84.5

105

5.5 8 20

25

46.5

Unit: mm

Figure 2-10 PMC-DCT-1000A-4V-A & PMC-DCT-2000A-4V-A Dimensions

2.4.2.5 50mA Mains Hall Effect DC Residual CT (PMC-DCT-50mA-5V-A)

Model

A B C D E F G

PMC-DCT-50mA-5V-A

225

182

38

135

140

50

74

Unit: mm

Figure 2-11 PMC-DCT-50mA-5V-A Dimensions

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2.4.2.6 50A/100A/200A Branch Hall Effect Solid-Core CTs

Model

A B C D E

F

PMC-DCT-50A-25mA-A

Ø20

58

68

58

4.0

20

PMC-DCT-100A-50mA-A

Ø20

58

68

58

4.0

20

PMC-DCT-200A-100mA-A

Ø25

69.5

80

68

5.0

22

Unit: mm

Figure 2-12 Branch Circuit Hall Effect CT Dimensions

2.4.3 Switching Power Supply

Figure 2-13 Switching Power Supply Dimensions

2.5 Wiring Connections

2.5.1 PMC-512-D Wiring

Figure 2-14 illustrates how to wire the PMC-512-D with multiple Hall Effect CTs to the Mains and Branch

Inputs. Following are some tips before pre-installation.

a) Ensure that all incoming DC power and other power sources are turned OFF before performing any

work on the meter.

b) Before connecting the meter to the power source, check the Serial Number label on the meter to

ensure that it is equipped with the appropriate power supply as well as the correct Voltage and

Current Input specifications for your application.

c) Confirm that the CT’s Primary and Secondary ratings are correct before installation.

d) Please keep in mind that:

i. The Hall Effect Split-Core CTs and DC Residual CT for the Mains Circuit have a Voltage Output.

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ii. The Hall Effect CTs for the Branch Circuits have a Current Output.

iii. Caution should be exercised during the installation of Hall Effect CTs for the Mains and Branch

Inputs. Using incorrect CTs for the Mains and Branch Inputs may cause permanent damage to

the PMC-512-D.

e) Please refer to Sections 2.5.2-2.5.5 to wire the Hall Effect CTs and their power supply to work with

the PCM-512-D for monitoring the Mains & Branch Circuits and the Residual Current.

Fig

ure 2-14 Typical Application

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Notes:

a) The Mains Input can be used to measure the Mains Current or the Mains Residual Current by using

the appropriate CT. The wiring connections for the Mains CT and Residual CT are the same.

b) It is important to determine the total load requirement from all the CTs to ensure that the capacity

of the power supply is sufficient.

Fi

gure 2-15 Terminal Connection

2.5.2 Mains Hall Effect CT Wiring

Fi

gure 2-16 Wiring for Mains Hall Effect CT

Note:

1. It is important to wire the G terminal on the CT to the COM Terminal on the Power Supply and the

I- Terminal on the PMC-512-D.

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2.5.3 Residual Current Hall Effect CT Wiring

Fi

gure 2-17 Wiring for Residual Current Hall Effect CT

Note:

1. It is important to wire the G terminal on the CT to the COM Terminal on the Power Supply and the

I- Terminal on the PMC-512-D.

2.5

.4 Branch Circuits Hall Effect CT Wiring

Fi

gure 2-18 Wiring for Branch Circuits Hall Effect CT

Note:

1. It is important to wire the COM Terminal on the Power Supply and the counterpart on the PMC-

512-D.

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2.5.5 Mains & Branch Circuits Hall Effect CT wiring (sharing the same PMC-DP)

Figure 2-19 Mains & Branch Circuits Hall Effect CT wiring (sharing the same PMC-DP)

Note:

1. It is important to wire the G Terminal on the Hall Effect CT for the Mains Input, the COM Terminal

on the Power Supply, the I- Terminal and the COM Terminal on the PMC-512-D.

2.5.6 Co

mmunications Wiring

The PMC-512-D provides two RS485 ports that support the Modbus RTU protocol. Up to 32 devices can

be connected on a RS485 bus. The overall length of the RS485 cable connecting all devices should not

exceed 1200m.

If the master station does not have a RS485 communications port, a RS232/RS485 or USB/RS485

converter with optical isolation and surge protection should be used.

The following figure illustrates the RS485 wiring for the PMC-512-D:

Fi

gure 2-20 RS485 Connections on PMC-512-D

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2.5.7 Digital Input Wiring

The following figure illustrates the Digital Input connections on the PMC-512-D. Please be informed

that there are two versions of the PMC-512-D with different voltage ratings for its Voltage Inputs,

Power Supply and Digital Inputs. Please refer to the Ordering Guide in Appendix F for more details.

a) PMC-512-DX43AE is designed for 48VDC system.

b) PMC-512-DX52BE is designed for 240/336VDC system.

Figure 2-21 DI Connections

2.5.8 Analog Input Wiring

The following figure illustrates the Analog Input connections on the PMC-512-D:

Figure 2-22 AI Connections

2.5.9 Digital Output Wiring

The following figure illustrates the Digital Output connections on the PMC-512-D:

Figure 2-23 DO Connections

2.5.10 Power Supply Wiring

For AC supply, connect the live wire to the L/+ terminal and the neutral wire to the N/- terminal.

For DC supply, connect the positive wire to the L/+ terminal and the negative wire to the N/- terminal.

Figure 2-24 Power Supply Wiring

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Chapter 3 User Interface

The following figures illustrate the two versions of the PMC-512-D. The Transducer Version provides

three LED indicators and one Reset button. The LCD Version (available in the future) has an easy to read

LCD display and three buttons for both data display and setup configuration purposes.

Figure 3-1 Front Panel of PMC-512-D Transducer Version

F

igure 3-2 Front Panel of PMC-512-D LCD Version

3.1 Front Panel LED Indicators

There are three LED indicators on the PMC-512-D’s Front Panel as described in the following table.

LED Indicator

Color

Status

Description

Run

Green

Blinking once per second

System is running normally

Red

Blinking once per 0.5s

Alarm Active

Solid On

Abnormal Diagnostics

Comm. Green

Blinking

Receiving data or Transmitting

data

Off

No Communication

Pulse Red

Pulsing based on the rate of

Energy Consumption

Energy Pulse Output

Table 3-1 Front Panel LED Indicators

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3.2 Front Panel Buttons

3.2.1 PMC-512-D Transducer Version

There is a button on the Front Panel of the PMC-512-D Transducer Version (No LCD), such as PMC512-DX43AE, for resetting the Communication parameters or all Setup parameters to factory default.

Button

Reset Comm. Parameters

Reset All Setup Parameters

i. Press this button for 5 seconds

when the device is running.

ii. All the LED indicators will blink

for 5 times.

i. Power off the PMC-512-D.

ii. Holding down this button for 5 seconds after

the device has been powered up.

iii. All the LED indicators will blink for 10 times.

Table 3-2 Reset Mechanism for the PMC-512-D’s Transducer Version

3.2.2 Buttons on LCD PMC-512-D (Future)

There are three buttons on the right-hand side of the PMC-512-D LCD Version, <O>, < > and < >. Their

functions are described below.

Button

Auto-Scroll Mode

Main Menu

Setup Configuration Mode

<O>

Pressing this button momentarily enters the Main Menu

•

Pressing this button enters the

highlighted sub-menu.

• Pressing this button at the

Setup menu enters the Setup Configuration Mode.

• Holding this button for 2s

returns to the Auto-Scroll mode from the Main Menu or returns to the previous menu level from inside a sub-menu.

• While inside the Setup menu,

pressing this button enters the sub-menu.

•

While inside a sub-menu,

pressing this button enters the next sub-

menu or selects a

parameter to modify.

• After the parameter has been

modified, pressing this button

saves the changes.

•

Holding this button for 2s returns

to the previous menu level.

< >

Pressing this button

scrolls through the

following Parameter Categories if the

respective option

has been enabled in the Auto Scroll

setup under the

Maintenance menu:

 SM1-12  AI

• Pressing this button inside the

Metering sub-

menu scrolls

through the following

Parameter Categories:

 I1-I12 for 12 SMs  AI

•

Pressing this button inside the

Alarm Status sub-menu scrolls through the following Alarm Categories:

 U/I for Mains Circuit  I1-I12 for 12 SMs  AI  DI1 to DI13

•

While inside other sub-menus,

pressing this button scrolls to

the previous item.

•

While inside the Setup menu or a

sub-menu, pressing this button scrolls to the previous menu item or setup parameter.

•

After a setup parameter has been

selected, pressing this button

moves the cursor one position to the left if it is a numeric value. Once the cursor has reached the

left most digit, pressing this

button again will move the cursor

to the right most digit. This

button is ignored if the selected

parameter is an enumerated

value.

< >

Pressing this button

scrolls to the next parameter in a

certain Parameter Category.

• Pressing this button scrolls to

the next sub-

menu, the next

parameter in a certain submenu, the next parameter in a certain Parameter Category inside the Metering sub-menu or the next alarm parameter in a certain Alarm Category inside the Alarm status sub-menu.

• While inside the Setup menu or a

sub-menu, pressing this button scrolls to the next menu item or setup parameter.

•

After a setup parameter has been

selected,

pressing this button

increments the selected digit if it

is a numeric value or scrolls

through the selection list if it is an

enumerated value.

Table 3-3 Button Descriptions on LCD PMC-512D

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3.3 Data Display (Optional with the Future LCD Version)

The PMC-512-D’s LCD display defaults to the Auto-Scroll display mode where measurements in each of

the selected Parameter Categories illustrated in Table 3-4 below are automatically scrolled through at

a fixed 5-second interval. If the user wishes to see all the available parameters, one can manually do so

by pressing the <O> button to enter the Main Menu and then selecting one of the following sub-menus

for the desired information. The available sub-menus are: Metering, Alarm status, DI/DO Status, Event

Log, Setup, Maintenance, and Information. The following sections describe the available information

for each of the sub-menus in detail.

3.3.1 Auto-Scroll

The Parameter Categories and their measurements are listed in the table below, and all of them are

Enabled in Auto-Scroll Mode by default. Please refer to Auto-Scroll Setup in Section 3.4.4 Maintenance

about how to enable or disable the display of a certain of SMs or AI in Auto-Scroll.

Parameter Categories

Measurements

Mains Circuit

U

I*/Ir~

%Loading1

P1

kWh1

SMx (x=1-12)

I

%Loading

P

kWh

AI

AI Scaled

AI Raw

*I stands for the Mains Current when working with the Mains Circuit Hall Effect CT. ~Ir stands for the Residual Current when working with the DC Residual Hall Effect CT.

Note:

1) When the Mains Current Type is Residual Current, the %Loading, P, and kWh are not available.

Table 3-4 Auto-Scroll Display Pages

3.3.2 Metering

The following table illustrates the available measurements under the Metering sub-menu.

Parameter Categories

Measurements

Mains Circuit

U

I*/Ir~

%Loading1

P1

kWh1

SMx (x=1-12)

I

%Loading

P

kWh

AI

AI Scaled

AI Raw

*I stands for the Mains Current when working with the Mains Circuit Hall Effect CT. ~Ir stands for the Residual Current when working with the DC Residual Hall Effect CT.

Note:

1) When the Mains Current Type is Residual Current, %Loading, P, and kWh are not available.

Table 3-5 Metering Display Pages

3.3.3 Alarm Status

Menu

Alarm Categories

Measurements

Alarm Status

Mains Circuit

U Alarm

I*/Ir~ Alarm

SMx (x=1-12)

I Alarm

AI

AI Alarm

DIx (x=1-13)

DIx (x=1 to 13) Open/Closed Alarm

*I stands for the Mains Current when working with the Mains Circuit Hall Effect CT. ~Ir stands for the Residual Current when working with the DC Residual Hall Effect CT.

Table 3-6 Alarm Status Pages

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3.3.4 DI/DO Status

Menu

Sub-Menu

Measurements

DI/DO Status

DI (1-13)

DIx (x=1 to 13)

DO

Table 3-7 DI/DO Status Display Pages

3.3.5 SOE Log

The PMC-512-D supports the display of the SOE Log with its relevant parameter values and its

timestamp. The users can scroll through the SOE Log by pressing < > or < >.

Two examples of SOE Log Display:

Figure 3-3 Examples of Event Log Display

3.3.6 Information

Menu

Description

Parameters

Info

Meter Information

Firmware

Firmware Version

Modbus

Modbus Protocol Version

Ver. Date

Firmware Version Date

S/N

Serial Number

Diagnostics

AD

A/D Diagnostics

FRAM

FRAM Diagnostics

FLASH

FLASH Diagnostics

Setup Param.

Setup Parameters Diagnostics

Table 3-8 Information Display Pages

3.4 Setup and Maintenance via the Front Panel (Optional with the future LCD Version)

3.4.1 Making Setup Changes

1) Entering the Password:

 Press <O> to enter the Main Menu.

 Press < > to advance to the Setup menu.

 A correct password must be entered before changes are allowed. The factory default password

is “0000” (four zeros).

 Press < > to shift the cursor to the left and < > to increment the numeric value for the

password.

 When the password has been entered, pressing <O> will enter the Setup sub-menu if the

password is correct (otherwise, the device will respond “Incorrect Password”).

2) Selecting a parameter to change:

 Press < > to scroll to the desired sub-menu or parameter.

 Press <O> to select the sub-menu or parameter for configuration.

 Hold <O> for 2 seconds to return to the previous menu level.

 Repeat Step 2 until all the desired setup parameters have been selected.

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3) Changing and saving a setup parameter:

 For a numeric parameter, press < > to shift the cursor to the left by one position or < > to

increment the numeric value.

 For an enumerated parameter, press < > or < > to scroll backward and forward in the selection

list.

 After modification, press <O> to save the change into memory or hold <O> for 2 seconds to exit

the currently selected parameter without change.

 Repeat steps 2) and 3) if necessary.

4) Exiting the Setup Configuration Mode

 Hold <O> for 2 seconds to return to the Main Menu.

 Also, the Setup Configuration Mode will be automatically exited if there is a period of inactivity

of 5 minutes or longer.

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3.4.2 Setup Menu

Figure 3-4 Setup Menu

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3.4.3 Configuration

The Setup Configuration Mode provides access to the following setup parameters:

Label

Description Range Default

Menu

1st

2nd

3rd

Setup

Basic

Nom. Voltage

Nominal Voltage

48 V/240 V/336 V

240 V

Mains Current Type

Incomer/Residual

Incomer

Mains CT Primary

1

1 to 3,000 A/mA1

400 A/mA1

Mains CT Secondary

0.1-5.0 V

4 V

Mains Breaker Rating

1 to 3,000 A

250 A

Dmd Period

Demand Interval

1 to 60 min

15

No. of Windows

Number of Sliding Windows

1 to 15

1

Dmd S.R. Time

Self-Read Time for Demand

See Note 2)

0

Dmd S.R. Mode

Self-Read Mode for Demand

Auto/Manual

Auto

Mthly Energy Log S.R. Time

Self-Read Time for

Monthly Energy Log

See Note 2) 0

R.C. Arm

Enable Arm before Execute

Remote Control

Enabled/Disabled Enabled

DO Pulse Width

Specifies the Pulse Width for

which the relay output will be active when a remote control

command is received to activate

it. The DO is in Latched mode if

it’s set to zero.

0.0 ~600.0 s 0 s

EN Pulse CNST LED Energy Pulse Constant

1/10/100/400/

1000/3200 imp/kWh

400

LED EN Pulse

Specifies which kWh will be

enabled as the LED Energy Pulse

0 to 143 0 (Disabled)

Date Format Set Date Format

YYYY/MM/DD

MM/DD/YYYYY

DD/MM/YYYY

YYYY/MM/DD

Language

System language

EN/SC/TC

EN

SM Config.

CT Primary

SMx (x=1-12) CT Primary

1 to 3000 A

100 A

CT Secondary

SMx (x=1-12) CT Secondary

1 to 100 mA

50 mA

Breaker Rating

SMx (x=1-12) Breaker Rating

1 to 3,000 A

250 A

Comm.

COM1 Unit ID

COM1 Modbus Address

1 to 254

100

COM1 Baud Rate

COM1 Data rate in bits per COM1

second

1200/2400/4800/9600

19200/38400/57600

38400

COM1 Config

COM1 Data Format

8N2/8O1/8E1/8N1

8E1

COM2 Unit ID

COM2 Modbus Address

1 to 254

100

COM2 Baud Rate COM2 Data rate in bps

1200/2400/4800/9600/

19200/38400/57600

9600

COM2 Config

COM2 Data Format

8N2/8O1/8E1/8N1

8E1

Alarm Global Alarm

Uni. Hys.

Universal Hysteresis

0 to 10%

2%

ON/OFF Threshold

Current ON Threshold

0 to 10%

5%

ON Time

Current ON Delay

0 to 9999(s)

10s

OFF Time

Current OFF Delay

0 to 9999(s)

30s

Voltage Alarm

H Limit

U H Alarm Limit

0~300.0V 0 H Delay

U H Alarm Delay

0~9999s

0

L Limit

U L Alarm Limit

0~300.0V

0

L Delay

U L Alarm Delay

0~9999s

0

Trigger U Alarm Trigger

None/DO/Alarm

LED/DO & Alarm LED

None

Mains Current Alarm4

HH Threshold

Current HH Alarm Threshold

0 to 100 (%)5

80%

HH Delay

Current HH Alarm Delay

0 to 9999 (s)

10s

H Threshold

Current H Alarm Threshold

0 to 100 (%)5

60%

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H Delay

Current H Alarm Delay

0 to 9999 (s)

10S

L Threshold

Current L Alarm Threshold

0 to 100 (%)

5

0

L Delay

Current L Alarm Delay

0 to 9999 (s)

0

LL Threshold

Current LL Alarm Threshold

0 to 100 (%)

5

0

LL Delay

Current LL Alarm Delay

0 to 9999 (s)

0

Trigger Current Alarm Trigger

None/DO/Alarm

LED/DO & Alarm LED

None

DC Residual Current Alarm

4

HH Threshold

Current HH Alarm Threshold

0 to 1000 (mA)0HH Delay

Current HH Alarm Delay

0 to 9999 (s)0H Threshold

Current H Alarm Threshold

0 to 1000 (mA)0H Delay

Current H Alarm Delay

0 to 9999 (S)

0

Trigger Current Alarm Trigger

None/DO/Alarm

LED/RO & Alarm LED

None

SM Current Alarm

Enable 1-6

Select SMs 1-6 to be included in

Current Alarm

1-6

□□□□□□

Off

Enable 7-12

Select SMs 7-12 to be included in

Current Alarm

7-12

□□□□□□

Off

HH Threshold (%)

SM Current HH Alarm Threshold

0 to 100%

80%

HH Delay

SM Current HH Alarm Time Delay

0 to 9999 (s)

10 s

H Threshold (%)

SM Current H Alarm Threshold

0 to 100%, 0%

60%

H Delay

SM Current H Alarm Time Delay

0 to 9999(s), 0s

10 s

L Threshold (%)

SM Current L Alarm Limit

0 to 100%

0

L Delay

SM Current L Alarm Time Delay

0 to 9999(s)

0 s

LL Threshold (%)

SM Current LL Alarm Threshold

0 to 100%0LL Delay

SM Current LL Alarm Time Delay

0 to 9999(s)

0 s

Trigger SM Current Alarm Trigger

None/DO/Alarm

LED/RO & Alarm LED

None

DIx Alarm(X=1-13)

Active Mode

Decide whether & when the

alarm should active

Disabled/ Close/ Open Disabled

Active Delay

0~9999 (s)

0

Trigger DI Alarm Trigger

None/DO/Alarm

LED/DO & Alarm LED

None

AI Alarm

Alarm Mode Set/Enable Alarm Level(s)

HH H L LL

□□□□

Off

HH Limit

AI HH Alarm Threshold

-999999 to 999999

0

HH Delay

AI HH Alarm Delay

0 to 9999 (s)

10 s

H Limit

AI H Alarm Threshold

-999999 to 999999

0

H Delay

AI H Alarm Delay

0 to 9999 (s)

10 s

L Limit

AI L Alarm Threshold

-999999 to 999999

0

L Delay

AI L Alarm Delay

0 to 9999 (s)

10 s

LL Limit

AI LL Alarm Threshold

-999999 to 999999

0

Trigger AI Alarm Trigger

None/DO/Alarm

LED/DO & Alarm LED

None

DI Setup (x=1-13)

DIx Excitation5 Excitation Voltage

0=220VDC*

1=220VAC, 2=110VDC

3=110VAC, 4=48VDC

5=-48VDC

DC220V

DIx Debo.

Debounce Time

1 to 9999 (ms)

40 ms

Analog Input

Type

Select between

0-20mA or 4-20mA input

4-20 mA / 0-20 mA 4-20 mA

Zero Scale

The value that corresponds to the

minimum Analog Input of 0 or 4

mA

-999,999 to 999,999 400

Full Scale

The value that corresponds to the

maximum Analog Input of 20 mA

-999,999 to 999,999 2000

Table 3-9 Setup Parameters

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Notes:

1) The unit of Mains CT Primary is variable, which is A or mA, and depends on whether the Mains Current Type is Incomer or Residual.

2) The Dmd S.R. Time and Mthly Energy Log S.R Time support the following two options:

a. A zero value means that the Self-Read will take place at 00:00 of the first day of each month. b. A non-zero value means that the Self-Read will take place at a specific time and day based on the formula: Self-Read

Time = (Day x 100 + Hour) where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For example, the value 1512 means that the SelfRead will take place at 12:00pm on the 15th day of each month.

3) The LED Energy Pulse Modes are listed in the table below:

Value

Parameter

Value

Parameter

Value

Parameter

0

Disabled

5

SM4 kWh

10

SM9 kWh

1

Mains kWh

6

SM5 kWh

11

SM10 kWh

2

SM1 kWh

7

SM6 kWh

12

SM11 kWh

3

SM2 kWh

8

SM7 kWh

13

SM12 kWh

4

SM3 kWh

9

SM8 kWh

Table 3-10 LED Energy Pulse Modes

4) Since the Mains Current Type can be configured as Incomer or Residual, the Current Alarm settings should be configured accordingly. When Incomer is selected as the Mains Current Type, the Mains Current Alarm settings would be used for alarming, and vice versa.

5) The available options for DIx Excitation would depend on the PMC-512-D Model. The 48VDC and -48VDC options are only available for the hardware that is only equipped with 48VDC DI while the 220VDC, 220VDC, 110VDC and 110VAC options are available for the 240VDC (max.336VDC) DI.

3.4.4 Maintenance

Parameters

Descriptions

Range

Default

Clock Setup Time and Date

YYYY/MM/DD

hh:mm:ss

-

Password Setup

Set New Password

-

BLTO

Backlight Time Out1

0 to 60 min.

5

Contrast

LCD Contrast

0 to 9

5

Auto-Scroll

Auto Scroll Setup2

See Note 2)

Clear Energy

Clear all Energy registers

Yes/No

No

Clear Max Demands

Clear Peak Demand Log of This Month

(Since Last Reset)

Yes/No No

Clear All Demands

Clear all Demand Logs

Yes/No

No

Clear SOE

Clear SOE Logs

Yes/No

No

Clear DR Log

Clear DR Logs

Yes/No

No

Clear All Data

Clear All of the above

Yes/No

No

Factory Reset

Reset factory default settings

Yes/No

No

Table 3-11 Maintenance Parameters

Notes:

1) If BLTO is set to 0, the Backlight Time Out is disabled, which means that the Backlight will always be on.

2) Auto-Scroll Setup allows users to select which SM and whether Analog Input would be displayed in Auto-Scroll Mode. For Example, if the PMC-512-D is used for monitoring 9 branch circuits with SM1 to SM9, the remaining three SMs can be disabled in the Auto-Scroll Mode to prevent unnecessary information from being displayed. The Parameter Categories and their measurements are listed in the table below, and all of them are Enabled in Auto-Scroll Mode by default. The Parameter

Category Mains Circuit is always shown and cannot be disabled in Auto-Scroll mode.

Parameter Categories

Measurements

Mains Circuit

U

I*/Ir~

%Loading1

P1

kWh1 SMx (x=1-12)

Ix

%Loadingx

Px

kWhx

AI

AI Scaled

AI Raw

*I stands for the Mains Current when working with Mains Circuit Hall Effect CT. ~Ir stands for the Residual Current when working with DC Residual Hall Effect CT.

Note:

1) When the Mains Current Type is Residual Current, %Loading, P, and kWh are not available.

Table 3-12 Auto-Scroll Display Pages

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Chapter 4 Applications

4.1 Inputs and Outputs

4.1.1 Digital Inputs

The PMC-512-D is equipped with 13 Wet Contact Digital Inputs (DIs) that are used for breaker status

monitoring. Changes in Digital Input status are stored as events in the SOE Log at 1 ms resolution. Each

DI has the following setup parameters:

Setup Parameter

Definition

Options/Default*

DIx Excitation1

(Reg. # 6100)

Specifies the voltage excitation level.

0 = 220VDC*

1= 220VAC, 2 = 110VDC

3= 110VAC, 4= 48VDC

5= -48VDC

DIx Debounce

(Reg. # 6101~6113)

Specifies the minimum duration the DI must

remain in the Active or Inactive state before a

DI state change is considered to be valid.

1 to 9999 (ms)

40ms*

Table 4-1 Definition for DI Parameters

Note:

1. The available options for DI Excitation would depend on the PMC-512-D model. The 48VDC and -48VDC options are only available for the hardware that are equipped with 48VDC DI while the 220VDC, 220VAC, 110VDC and 110VAC options are available for the 240VDC (max. 336VDC) DI.

4.1.2 Analog Input

The PMC-512-D comes standard with an Analog Input which can be programmed as 0mA to 20mA or

4mA to 20mA input. There are 3 setup parameters:

Setup Parameter

Definition

Options/Default*

AI Type

(Reg. # 6050)

Select between 0-20mA or 4-20mA input.

0 = 4 -20 mA*

1 = 0 -20 mA

AI Zero

(Reg. # 6051)

This value corresponds to the minimum Analog

Input of 4 mA (for 4-20mA input) and has a range of

-999,999 to +999,999.

-999,999 to +999,999 400*

AI Full

(Reg. # 6053)

This value corresponds to the maximum Analog

Input of 20 mA and has a range of -999,999 to

+999,999.

-999,999 to +999,999

2000*

Table 4-2 AI Setup Parameters

For example, to measure the oil temperature of a transformer, connect the outputs of the temperature

sensor to the AI terminals of the PMC-512-D. The temperature sensor outputs 4mA when the

temperature is -25°C and 20mA when the temperature is 100°C. As such, the Type parameter should be

programmed as 4-20mA. The AI FULL parameter should be programmed with the value 100, and the AI

ZERO parameter should be programmed with the value -25. Therefore, when the output of the sensor is

20mA, the reading will be 100.00°C. When the output is 4mA, the reading will be -25.00°C. When the

output is 12mA, the reading will be (100°C - (-25°C)) x (12mA-4mA) / (20mA-4mA) + (-25°C) = 37.50°C.

4.1.3 Energy Pulse Outputs

The PMC-512-D comes standard with one Front Panel LED Pulse Output for kWh pulsing. Energy pulsing

mode can be programmed from the Front Panel or through communications via the LED EN Pulse setup

parameter. Energy Pulse Outputs are typically used for accuracy testing. The pulse constant can be

configured as 1/10/100/400/1000/3200 imp/kWh.

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4.2 Power, Energy and Demand

4.2.1 Basic Measurements

The PMC-512-D provides the following basic measurements that can be accessed via the communication:

Parameter

Description

Mains Current Type = Incomer

Mains Current Type = Residual

U

Mains Voltage ● ●

I

Mains Current ● ○

Ir

Residual Current ○ ●

%Loading

Mains Loading rate

●

○

P

Mains Power ● ○

kWh

Mains Energy ● ○

I1-I12

SM1-12 Current ● ●

%Loading1-12

SM1-12 %Loading ● ●

P1-P12

SM1-12 Power ● ●

kWh1-12

SM1-12 Energy ● ●

AI

Analog Input ● ●

Table 4-4 Basic Measurements

4.2.2 Energy Measurements

The PMC-512-D's Energy measurements include Mains Energy (if the Mains Current Type = Incomer)

and SM 1-12 Energy at a resolution of 0.01kWh and a maximum value of 999,999.99kWh. When the

maximum value is reached, it will automatically roll over to zero.

The energy can be reset manually via the Front Panel or through communications.

4.2.3 Demands

Demand is defined as the average power consumption over a fixed interval (usually 15 minutes) based

on the sliding window method. The PMC-512-D provides the Current and kW Total Present Demand of

Mains and Branch Circuits as well as the Current and kW total Peak Demand of Mains and Branch Circuits

for This Month (Since Last Reset) and Last Month (Before Last Reset). Please note that the kW total

Present and Peak Demand for the Mains Circuit are not available if the Mains Current Type is Residual

Current. The Present Demand and Peak Demand data can be retrieved via Communications and, its Setup

Parameters are available via the Front Panel and through communications.

The PMC-512-D provides the following Demand setup parameters:

Parameter

Definition

Options

Demand Period

(Reg. # 6006)

1 to 60 minutes. For example, if the # of Sliding Windows is

set as 1 and the Demand Period is 15, the demand cycle will

be 1×15=15min.

1 to 60 minutes Default=15

# of Sliding

Windows

(Reg. # 6007)

Number of Sliding Windows.

1 to 15 Default=1

Self-Read Time

(Reg. # 6008)

The Self-Read Time allows the user to specify the time and

day of the month for the Peak Demand Self-

Read operation.

The Self-Read Time supports three options:

• A zero value means that the Self-Read will take place at 00:00 of the first day of each month.

• A non-zero value means that the Self-Read will take place at a specific time and day based on the formula: Self-Read

Time = Day x 100 + Hour where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For example, the value 1512 means that the Self-

Read will take place at 12:00pm on the 15th day of each month.

• A 0xFFFF value will disable the Self-Read operation and replace it with manual operation. A manual reset will

cause the Max. Demand of This Month to be transferred to

Default=0xFFFF

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the Max. Demand of Last Month and then reset. The

terms This Month and Last Month will become Since Last

Reset and Before Last Reset.

Self-Read Mode

(Reg. # 6009)

• 0=Auto

• 1=Manual

Default = 0

Table 4-5 Demand Setup

4.3 Alarm Setpoints

The PMC-512-D provides powerful alarming functions for the Mains Meter, 12 Sub-Meters as well as

different parameters. Each Alarm Type has an independent enable switch, which allows the alarms for

Mains Meter, SM and other parameters to be enabled individually as needed. The alarms may also be

disabled by setting their respective alarm thresholds to 0.

4.3.1 Alarm Status

The PMC-512-D supports both the Instantaneous Alarm and Latched Alarm, which are defined below.

Instantaneous Alarm

The status of an Instantaneous Alarm becomes ALARM when the alarm condition is met and is

automatically reset to NORMAL when the alarm condition is no longer met. Instantaneous Alarm cannot

be reset manually.

Latched Alarm

On the other hand, the status of a Latched Alarm becomes ALARM when the alarm condition is met and

will remain in the ALARM state even after the alarm condition is no longer met. The Latched Alarm must

be reset manually. However, the Latched Alarm cannot be reset while the alarm condition remains.

Figure 4-1 Alarm Status

4.3.2 Universal Hysteresis and Current ON/OFF Status

The Universal Hysteresis, Current ON Threshold, Current ON Delay and Current OFF Delay are global

parameters that are valid for all relevant alarms.

Parameters Description Range

Default

Value

Universal Hysteresis

The hysteresis rate for calculating the Return Threshold for all Alarms.

0 to 10% 2%

Current ON Threshold

The ON Threshold that applies to all Current

channels for switching from the OFF to ON

state.

0 to 10% 5%

Current ON Delay

The minimum duration that the Current of

a particular channel must exceed the ON Threshold before the Status would switch

from OFF to ON.

0 to 9999 (s) 10 s

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Current OFF Delay

The minimum duration that the Current of

a particular channel must fall below the OFF Threshold before the Status would

switch from ON to OFF.

0 to 9999 (s) 30 s

Table 4-6 Global Parameters

The Universal Hysteresis is a global parameter that is used to prevent measurement fluctuation around

the threshold point from causing an alarm to fluctuate between the Active and Inactive states.

The PMC-512-D provides the ON/OFF status for each Current channel to indicate whether the channel is

ON (Loaded) or OFF (No Load). If the channel status is OFF, it means that the channel has no load which

would prevent the Low and Low-Low alarms from activating.

The following figures illustrate the logic diagram of the Current ON/OFF status, respectively.

Where

Current ON Limit = Breaker Rating

×

Current ON Threshold

Current OFF Threshold = Current ON Threshold × (1 – Universal Hysteresis)

Current OFF Limit = Breaker Rating

×

Current OFF Threshold

It should be noted that the absolute value of the Current ON/OFF Limit is calculated based on the

Breaker Rating parameters. Therefore, it’s critical to set the Breaker Rating correctly for the Mains and

each Branch Circuit for the Current Alarms to work properly.

Figure 4-2 Current ON Logic Diagram Figure 4-3 Current OFF Logic Diagram

Figure 4-4 Current ON/OFF Status

4.3.3 Voltage Alarms and ON/OFF Status

PMC-512-D provides the Voltage ON/OFF status as well as two Voltage Alarm levels (High and Low) for

the Mains Circuit. The Voltage H/L Alarms will only be evaluated if it’s determined that the Voltage

status is ON.

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It should be noted that the absolute value of the Voltage ON/OFF Threshold is calculated based on the

Nominal Voltage parameter. Therefore, it’s critical to set the Nominal Voltage correctly for the

Voltage ON/OFF to work properly.

Voltage Alarm ON Limit = Nominal Voltage x 5.0%

Voltage Alarm OFF Limit = Voltage ON Limit x (1 – Universal Hysteresis)

The following figures illustrate the logic diagram of the Voltage Alarm ON/OFF status, respectively.

Fi

gure 4-5 Voltage ON Logic Diagram Figure 4-6 Volta ge OFF Logic Diagram

The following table illustrates the Voltage Alarm parameters.

Parameters

Description

Range/Default

Voltage H Alarm Limit

0*1 to 300V

Voltage H Alarm Time Delay

0* to 9999(s)

Voltage L Alarm Limit

VLN H Alarm Limit

0* to 300V

Voltage L Alarm Time Delay

VLN H Alarm Time Delay

0* to 9999(s)

Voltage Alarm Trigger VLN Alarm Trigger

0*2 = Disabled

Bit 0 = RO

Bit 1= Alarm Indicator

Bits 2-15=Reserved

Table 4-7 Voltage Alarm Parameters

Notes:

1) 0 means this Alarm Channel is disabled.

2) 0 means the Alarm Trigger is disabled.

The logic diagram of Voltage H Alarm is illustrated in Figure 4-7.

Figure 4-7 Voltage H Alarm Logic Diagram

The logic diagram of Voltage L Alarm is illustrated in Figure 4-8.

Figure 4-8 Voltage L Alarm Logic Diagram

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4.3.4 Mains Current Alarms

PMC-512-D provides four Current alarm levels (High-High, High, Low, Low-Low) for the Mains Current.

The Current Alarms will only be evaluated if it’s determined that the Current ON status is true for the

Mains Meter. The Mains Current Alarms will only be evaluated if the Mains Current Type is Incomer.

The following table illustrates the Mains Current Alarms parameters.

Parameters

Description

Range/Default

Current HH Alarm Threshold (%)

Mains Current HH Alarm Threshold

0* to 100%

Current HH Alarm Time Delay

Mains Current HH Alarm Time Delay

0 to 9999(s), 10s*

Current H Alarm Threshold (%)

Mains Current H Alarm Threshold

0 to 100%, 0%*

Current H Alarm Time Delay

Mains Current H Alarm Time Delay

0 to 9999(s), 0s*

Current L Alarm Threshold (%)

Mains Current L Alarm Threshold

0* to 100%

Current L Alarm Time Delay

Mains Current L Alarm Time Delay

0* to 9999(s)

Current LL Alarm Threshold (%)

Mains Current LL Alarm Threshold

0* to 100%

Current LL Alarm Time Delay

Mains Current LL Alarm Time Delay

0* to 9999(s)

Current Alarm Trigger Mains Current Alarm Trigger

0*=Disabled, Bit 0=DO

Bit 1=Alarm LED

Bits 2-15=Reserved

Table 4-8 Current Alarm Parameters

For High and High-High Alarms, which are conceptually similar to Over Setpoint:

Return Threshold = Alarm Threshold x (1 – Universal Hysteresis)

For Low and Low-Low Alarms, which are conceptually similar to Under Setpoint:

Return Threshold = Alarm Threshold x (1 + Universal Hysteresis)

The following logic diagrams illustrates the different levels of Current Alarms.

Where

Current Alarm Limit = Mains’ Breaker Rating x Alarm Threshold (%)

Current Return Limit = Mains’ Breaker Rating × Return Threshold (%)

It should be noted that the absolute value of the Current Alarm Limit is calculated based on the

Breaker Rating parameters. Therefore, it’s critical to set the Breaker Rating correctly for the Current

Alarms to work properly.

Current HH Alarm:

F

igure 4-9 Current HH Alarm Logic Diagram

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Current H Alarm:

Figure 4-10 Current H Alarm Logic Diagram

Cur

rent L Alarm:

Figure 4-11 Current L Alarm Logic Diagram

Current LL Alarm

Fig

ure 4-12 Current LL Alarm Logic Diagram

4.3.5 DC Residual Current Alarm

When the Mains Current Type is Residual, the PMC-512-D provides 2 alarm levels (High-High, High) for

the Residual Current Alarm. If the Mains Current Type is Incomer, the Residual Current Alarm is

disabled.

The following table illustrates the Residual Current Alarm parameters.

Parameters

Description

Range/Default

Current H Alarm Limit

Residual Current HH Alarm Limit

0*1 to 1000 mA

Current H Alarm Time Delay

Residual Current HH Alarm Time Delay

0* to 9999 (s)

Current HH Alarm Limit

Residual Current H Alarm Limit

0*1 to 1000 mA

Current HH Alarm Time Delay

Residual Current H Alarm Time Delay

0*1 to 9999 (s)

Current Alarm Trigger Residual Current Alarm Trigger

0*2=Disabled, Bit 0=DO

Bit 1=Alarm LED

Bits 2-15=Reserved

Table 4-9 Current Alarm Parameters

Notes:

1) 0 means this Alarm Channel is disabled.

2) 0 means the Alarm Trigger is disabled.

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For High and High-High Alarms, which are conceptually similar to Over Setpoint:

Return Limit = Alarm Limit x (1 – Universal Hysteresis)

Residual Current H Alarm:

Figure 4-13 Current H Alarm Logic Diagram

Residual Current HH Alarm:

Figure 4-14 Current HH Alarm Logic Diagram

4.3.6 SM Current Alarm

PMC-512-D also provides four Current alarm levels (High-High, High, Low, Low-Low) for each SM Current.

The SM Current Alarms will only be evaluated if it’s determined that the respective SM Current ON status

is true. The SM Current Alarm Enable register provides

the ability to individually enable the Current

Alarm for each SM. The Alarm Threshold and Time Delay settings would apply to all SMs that are enabled

for SM Current Alarm.

The following table illustrates the SM Current Alarm setup parameters.

Parameters

Description

Range/Default

Current Alarm Enable

Enable SM1-12 to for Current Alarm

0*-0x0FFF

1

Current HH Alarm Threshold (%)

SM Current HH Alarm Threshold

02 to 100%, 80%*

Current HH Alarm Time Delay

SM Current HH Alarm Time Delay

0 to 9999 (s), 10s*

Current H Alarm Threshold (%)

SM Current H Alarm Threshold

02 to 100%, 60%*

Current H Alarm Time Delay

SM Current H Alarm Time Delay

0 to 9999(s), 10s*

Current L Alarm Threshold (%)

SM Current L Alarm Limit

0*2 to 100%

Current L Alarm Time Delay

SM Current L Alarm Time Delay

0* to 9999(s)

Current LL Alarm Threshold (%)

SM Current LL Alarm Threshold

0*2 to 100%

Current LL Alarm Time Delay

SM Current LL Alarm Time Delay

0* to 9999(s)

Current Alarm Trigger SM Current Alarm Trigger

0*3=Disabled, Bit 0=DO

Bit 1=Alarm LED

Bits 2-15=Reserved

Table 4-10 Current Alarm Parameters

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Notes:

1) Bits 0 to 11 represent the SM Current Alarm Enable for SM1 to 12 respectively, with the bit value “0” meaning Disabled and “1” meaning Enabled. For example, 0x003F means SM1 to 6 are enabled for Current Alarm and SM7 to 12 are disabled.

2) 0 means this Alarm Channel is disabled.

3) 0 means the Current Alarm Trigger is disabled.

For High and High-High Alarms, which are conceptually similar to Over Setpoint:

Return Threshold = Alarm Threshold x (1 – Universal Hysteresis)

For Low and Low-Low Alarms, which are conceptually similar to Under Setpoint:

Return Threshold = Alarm Threshold x (1 + Universal Hysteresis)

The following logic diagrams illustrates the different levels of Current Alarms.

Where

SMx Current Alarm Limit = SMx’s Breaker Rating x Alarm Threshold (%)

It should be noted that the absolute value of the Current Alarm Limit is calculated based on the Breaker

Rating parameters. Therefore, it’s critical to set the Breaker Rating correctly for each SM Current for

the Current Alarms to work properly.

Current HH Alarm:

F

igure 4-15 Current HH Alarm Logic Diagram

Current H Alarm:

F

igure 4-16 Current H Alarm Logic Diagram

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Current L Alarm:

F

igure 4-17 Current L Alarm Logic Diagram

Current LL Alarm

Figure 4-18 Current LL Alarm Logic Diagram

4.3.7 AI Alarm

PMC-512-D provides four AI Alarm Levels (High-High, High, Low, Low-Low). The following table illustrates

the AI Alarm parameters.

Parameters

Range

Default

AI Alarm Enable (Reg. # 6484)

0* = Disable

Bit0=HH Bit1=H Bit2=L Bit3=LL

0

AI HH Alarm Threshold (Reg. # 6485)

-999999 to 999999 0

AI HH Alarm Time Delay (Reg. # 6487)

0 to 9999 (s) 10 s

AI H Alarm Threshold (Reg. # 6488)

-999999 to 999999 0

AI H Alarm Time Delay (Reg. # 6490)

0 to 9999(s) 10 s

AI L Alarm Threshold (Reg. # 6491)

-999999 to 999999 0

AI L Alarm Time Delay (Reg. # 6493)

0 to 9999(s) 10 s

AI LL Alarm Threshold (Reg. # 6494)

-999999 to 999999 0

AI LL Alarm Time Delay (Reg. # 6496)

0 to 9999(s) 10s

AI Alarm Trigger (Reg. # 6497)

0*=Disabled

Bit 0=DO, Bit 1=Alarm LED

Bits 2-15=Reserved

0

Table 4-11 AI Alarm Parameters

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The logic diagram of AI H/HH Alarm is illustrated in Figure 4-19.

Fi

gure 4-19 AI H Alarm Logic Diagram

The logic diagram of AI L/LL Alarm is illustrated in Figure 4-20.

Fi

gure 4-20 AI L Alarm Logic Diagram

4.3.8 DI Alarm

The following table illustrates the DI Alarm parameters.

Parameters

Description

Default

DIx Alarm Type

0=Disabled

1=DI1 Closed Trigger; 2=DI1 Open Trigger

0

DIx Alarm Time Delay

0 to 9999 (s)

0 s

DIx Alarm Trigger

0* = Disabled

Bit 0 = DO, Bit 1 = Alarm LED

Bit 2-15=Reserved

0

x indicates 1 to 13

Table 4-12 DI Alarm Parameters

The logic diagram of DI Closed Alarm is illustrated in Figure 4-21.

Figure 4-21 DI Closed Alarm Logic Diagram

The logic diagram of DI Open Alarm is illustrated in Figure 4-22.

Fi

gure 4-22 DI Open Alarm Logic Diagram

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4.4 Data Logging

4.4.1 Peak Demand Log

The PMC-512-D records the Peak Demand of This Month (Since Last Reset) and Last Month (Before Last

Reset) with timestamp for Current, kW Total for Mains Meter and SMs. All Peak Demand information

can be accessed through communications. Please refer to Section 4.2.3 for a complete description of the

Self-Read Time and its operation. The Peak Demand Log of This Month (Since Last Reset) and all the

Peak Demand can be reset individually through the Front Panel or via communications.

4.4.2 Monthly Energy Log

The PMC-512-D stores monthly energy data of the Mains Meter and SMs for the present month and the

last 24 months. The Monthly Energy Log Self-Read Time setup parameter allows the user to specify the

time and day of the month for the Recorder’s Self-Read operation via communications. The Monthly

Energy Log is stored in the meter’s non-volatile memory and will not suffer any loss in the event of power

failure, and they are stored on a First-In-First-Out basis where the newest log will overwrite the oldest.

The Monthly Energy Log Self-Read Time supports two options:



A zero value means that the Self-Read will take place at 00:00 of the first day of each month.



A non-zero value means that the Self-Read will take place at a specific time and day based on the

formula: Energy Self-Read Time = Day x 100 + Hour where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For example,

the value 1512 means that the Self-Read will take place at 12:00pm on the 15th

day of each month.

The Monthly Energy Log can be reset manually through the Front Panel or via communications.

4.4.3 SOE Recorder

The PMC-512-D’s SOE Log can store up to 512 events such as Power-On, Power-Off, Alarms, Relay actions,

Digital Input status changes, Diagnostics and Setup changes in non-volatile memory. Each event includes

a cause, its relevant parameter values and a timestamp in 1ms resolution.

All events can be retrieved through the Front Panel or via communications. If there are more than 512

events, the newest event will replace the oldest event on a FIFO basis. The SOE Log can be reset through

the Front Panel or via communications.

4.4.4 Data Recorder Log

The PMC-512-D provides one Data Recorder capable of recording a maximum of 60 parameters. Up to

5,000 Data Recorder Logs can be stored in the device’s non-volatile memory and will not suffer any loss

in the event of a power failure.

The programming of the Data Recorder is only supported over communication. The Data Recorder

provides the following setup parameters:

Setup Parameters

Value/Option

Default

Trigger Mode

0=Disabled / 1=Triggered by Timer

0

Recording Mode

0=Stop-When-Full / 1=First-In-First-Out

0

Recording Depth

1 to 5000 (entry)

5000

Recording Interval

60 to 345,600 seconds

60 s

Offset Time

0 to 43,200 seconds, 0 indicates no offset.

0

Number of Parameters

0 to 60

0

Parameter 1 to 60

See Appendix B

0

Table 4-13 Setup Parameters for Data Recorder

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The Data Recorder Log is only operational when the values of Trigger Mode, Recording Mode, Recording

Depth, Recording Interval, and Number of Parameters are all non-zero.

The Recording Offset parameter can be used to delay the recording by a fixed time from the Recording

Interval. For example, if the Recording Interval parameter is set to 3600 (hourly) and the Recording

Offset parameter is set to 300 (5 minutes), the recording will take place at 5 minutes after the hour every

hour, i.e. 00:05, 01:05, 02:05…etc. The value of the Recording Offset parameter should be less than the

Recording Interval parameter.

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Chapter 5 Modbus Register Map

This chapter provides a complete description of the Modbus register map (Protocol Version 2.0) for

the PMC-512-D to facilitate the development of 3

rd

party Modbus RTU communications driver for

accessing information on the PMC-512-D.

The PMC-512-D supports the following Modbus functions:

1) Read Holding Registers (Function Code 0x03)

2) Force Single Coil (Function Code 0x05)

3) Preset Multiple Registers (Function Code 0x10)

4) Read Energy Files (Function Code 0x14)

For a complete Modbus Protocol Specification, please visit http://www.modbus.org

.

5.1 Status Register

5.1.1 General Status

Register

Property

Description

Format

Note

0000

RO

DI Status1

Bitmap

0001

RO

DO Status2

Bitmap

0002

RO

Diagnostics3

Bitmap

0004

RO

SOE Pointer4

UINT32

0006~0007

RO

Reserved

UINT32

0008

RO

DR Log Pointer5

UINT32

0010

RO

Monthly Energy Log Pointer5

UINT32

0012

RO

General Alarm Status

UINT16

0=Normal, 1=Alarm

Table 5-1 General Status

Notes:

1) For the DI Status register, the bit values of Bit0 to Bit12 represent the state of DI1 to DI13, respectively, with “1” meaning active (closed) and “0” meaning inactive (open).

2) For the DO Status register, the bit value of Bit0 represent the states of DO, with “1” meaning active (closed) and “0” m eaning inactive (open). The remaining bits are reserved.

3) The Diagnostics register indicates the various system statuses with a bit value of 0 meaning normal and 1 meaning fault. The following table illustrates the details of the Diagnostics register.

Bit

Alarm Event

Bit 0

NVRAM Fault

Bit 1

Flash Fault

Bit 2

A/D Chips Fault

Bit 3

Internal Power Supply Fault

Bit 4

System Parameters Error

Bit 5

Internal Parameters Error

Bit 6-31

Reserved

Table 5-2 Diagnostics Register (Reg. # 0002)

4) The range of the SOE Pointer is between 0 and 0xFFFFFFFFH. The SOE Pointer is incremented by one for every event generated and will roll over to 0 if its current value is 0xFFFFFFFFH. The SOE Log capacity is relatively small with only 512 events in the PMC-512-D, and it can be reset to zero and then immediately incremented by one with a new “Clear SOE via Communications” event. When the number of events is larger than 512, only the latest 512 events will be stored.

5) The range of the DR Log/Monthly Log Pointer is between 0 and 0xFFFFFFFFH. The pointers point to the current logging position and are incremented by one for every new record generated and will ro ll over to 0 if its current value is 0xFFF FFFFFH. Use the following equation to determine the latest log location:

Latest Log Location = Modulo [SOE Pointer/Log Depth]

Where Log Depth = 512 for SOE Log and DR’s Recording Depth for the DR Log

.

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5.1.2 Instantaneous Alarm

Register

Property

Description

Format

Note

0030

RO

Alarm#1 Status

Bitmap 0031

RO

Alarm#2 Status

Bitmap 0032

RO

Alarm#3 Status

Bitmap 0033

RO

Alarm#4 Status

Bitmap 0034

RO

Alarm#5 Status

Bitmap

Table 5-3 Instantaneous Alarm

Note:

1. For the Alarm #x Status register, each bit values of B0 to B11 represent different alarms, with “1” meaning active (Alarm) and “0” meaning inactive (Normal).

Bit

Bit 2

Bit 1

Bit 0

Status

Mains Current HH Alarm

Mains Current L Alarm

Mains Current H Alarm

Bit

Bit 5

Bit 4

Bit 3

Status

Residual Current HH Alarm

Residual Current H Alarm

Mains Current LL Alarm

Bit

Bit 8

Bit 7

Bit 6

Status

AI H Alarm

Voltage L Alarm

Voltage H Alarm

Bit

Bit 11

Bit 10

Bit 9

Status

AI LL Alarm

AI HH Alarm

AI L Alarm

Table 5-4 Alarm#1 Status (Register 0030)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM1 I-LL Alarm

SM1 I-HH Alarm

SM1 I-L Alarm

SM1 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM2 I-LL Alarm

SM2 I-HH Alarm

SM2 I-L Alarm

SM2 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM3 I-LL Alarm

SM3 I-HH Alarm

SM3 I-L Alarm

SM3 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM4 I-LL Alarm

SM4 I-HH Alarm

SM4 I-L Alarm

SM4 I-H Alarm

Table 5-5 Alarm#2 Status (Register 0031)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM5 I-LL Alarm

SM5 I-HH Alarm

SM5 I-L Alarm

SM5 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM6 I-LL Alarm

SM6 I-HH Alarm

SM6 I-L Alarm

SM6 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM7 I-LL Alarm

SM7 I-HH Alarm

SM7 I-L Alarm

SM7 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM8 I-LL Alarm

SM8 I-HH Alarm

SM8 I-L Alarm

SM8 I-H Alarm

Table 5-6 Alarm#3 Status (Register 0032)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM9 I-LL Alarm

SM9 I-HH Alarm

SM9 I-L Alarm

SM9 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM10 I-LL Alarm

SM10 I-HH Alarm

SM10 I-L Alarm

SM10 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM11 I-LL Alarm

SM11 I-HH Alarm

SM11 I-L Alarm

SM11 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM12 I-LL Alarm

SM12 I-HH Alarm

SM12 I-L Alarm

SM12 I-H Alarm

Table 5-7 Alarm#4 Status (Register 0033)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

DI4 Alarm

DI3 Alarm

DI2 Alarm

DI1 Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

DI8 Alarm

DI7 Alarm

DI5 Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

DI12 Alarm

DI11 Alarm

DI10 Alarm

DI9 Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

Reserved

DI13 Alarm

Table 5-8 Alarm#5 Status (Register 0034)

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5.1.3 Latched Alarm

Register

Property

Description

Format

Note

0130

RO

Alarm#1 Status

Bitmap

0131

RO

Alarm#2 Status

Bitmap

0132

RO

Alarm#3 Status

Bitmap

0133

RO

Alarm#4 Status

Bitmap

0134

RO

Alarm#5 Status

Bitmap

0134~0145

RO

Reserved

Bitmap

Table 5-9 Latch Alarm

Note:

1. For the Alarm #x Status register, each bit values of B0 to B15 represent different alarms, with “1” meaning active (closed) and “0” meaning inactive (open).

Bit

Bit 2

Bit 1

Bit 0

Status

Mains Current HH Alarm

Mains Current L Alarm

Mains Current H Alarm

Bit

Bit 5

Bit 4

Bit 3

Status

Residual Current HH Alarm

Residual Current H Alarm

Mains Current LL Alarm

Bit

Bit 8

Bit 7

Bit 6

Status

AI H Alarm

Voltage L Alarm

Voltage H Alarm

Bit

Bit 11

Bit 10

Bit 9

Status

AI LL Alarm

AI HH Alarm

AI L Alarm

Table 5-10 Alarm#1 Status (Register 0130)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM1 I-LL Alarm

SM1 I-HH Alarm

SM1 I-L Alarm

SM1 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM2 I-LL Alarm

SM2 I-HH Alarm

SM2 I-L Alarm

SM2 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM3 I-LL Alarm

SM3 I-HH Alarm

SM3 I-L Alarm

SM3 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM4 I-LL Alarm

SM4 I-HH Alarm

SM4 I-L Alarm

SM4 I-H Alarm

Table 5-11 Alarm#2 Status (Register 0131)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM5 I-LL Alarm

SM5 I-HH Alarm

SM5 I-L Alarm

SM5 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM6 I-LL Alarm

SM6 I-HH Alarm

SM6 I-L Alarm

SM6 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM7 I-LL Alarm

SM7 I-HH Alarm

SM7 I-L Alarm

SM7 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM8 I-LL Alarm

SM8 I-HH Alarm

SM8 I-L Alarm

SM8 I-H Alarm

Table 5-12 Alarm#3 Status (Register 0132)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

SM9 I-LL Alarm

SM9 I-HH Alarm

SM9 I-L Alarm

SM9 I-H Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

SM10 I-LL Alarm

SM10 I-HH Alarm

SM10 I-L Alarm

SM10 I-H Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

SM11 I-LL Alarm

SM11 I-HH Alarm

SM11 I-L Alarm

SM11 I-H Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

SM12 I-LL Alarm

SM12 I-HH Alarm

SM12 I-L Alarm

SM12 I-H Alarm

Table 5-13 Alarm#4 Status (Register 0133)

Bit

Bit 3

Bit 2

Bit 1

Bit 0

Status

DI4 Alarm

DI3 Alarm

DI2 Alarm

DI1 Alarm

Bit

Bit 7

Bit 6

Bit 5

Bit 4

Status

DI8 Alarm

DI7 Alarm

DI5 Alarm

Bit

Bit 11

Bit 10

Bit 9

Bit 8

Status

DI12 Alarm

DI11 Alarm

DI10 Alarm

DI9 Alarm

Bit

Bit 15

Bit 14

Bit 13

Bit 12

Status

Reserved

DI13 Alarm

Table 5-14 Alarm#5 Status (Register 0134)

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5.2 Basic Measurements

Register

Property

Description

Format

Scale

Unit

0500 RO Channel Polarity UINT32

x1

Bit 0: Voltage

Bit 1: Mains I

Bit 2: SM1 I

…

Bit 13: SM12 I

Others: Reserved

0=Normal

1=Reverse

0502~0503

RO

Reserved

FP32 0504

RO

U

FP32 V 0506

RO

Mains Current1

FP32 A 0508

RO

Residual Current2

FP32

mA

0510~0511

RO

Reserved

FP32

0512

RO

SM1 Current

FP32

A

0514

RO

SM2 Current

FP32 … … FP32

0532

RO

SM11 Current

FP32

0534

RO

SM12 Current

FP32

0536~0539

RO

Reserved

FP32 0540 Mains kW

FP32 W 0542

RO

SM1 kW

FP32 W 0544

RO

SM2 kW

FP32

0546

RO

SM3 kW

FP32 … … FP32

0564

RO

SM12 kW

FP32

0566~0569

RO

Reserved

0570

RO

Mains %Loading3

FP32 - 0572

RO

SM1 %Loading3

FP32

0574

RO

SM 2 %Loading3

FP32 … … FP32

0594

RO

SM12 %Loading3

FP32

0596~0601

RO

Reserved

FP32 0602

RO

AI Raw

UINT16

x0.01

mA

0603

RO

AI Scaled

FP32

Table 5-15 Real-time Measurements

Notes:

1) When Mains Current Type is Residual, this register is invalid.

2) When Mains Current Type is Incomer, this register is invalid.

3) For example, the return value 0.001 means the %Loading = 0.1%.

5.3 Energy Measurements

Register

Property

Description

Format

Scale

Unit

2000

RO

Mains kWh

INT32

x0.01 kWh

2002

RO

SM1 kWh

INT32

2004

RO

SM2 kWh

INT32

2006

RO

SM3 kWh

INT32

2008

RO

SM4 kWh

INT32

2010

RO

SM5 kWh

INT32

2012

RO

SM6 kWh

INT32

2014

RO

SM7 kWh

INT32

2016

RO

SM8 kWh

INT32

2018

RO

SM9 kWh

INT32

2020

RO

SM10 kWh

INT32

2022

RO

SM11 kWh

INT32

2024

RO

SM12 kWh

INT32

Table 5-16 Energy Measurements

5.4 Monthly Energy Log

Register

Property

Description

Format

Scale

Unit

2700

RW

Month1

UINT16

0* to 24

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2701 RO

High-order Byte: Year (0-99)

Low-order Byte: Month (1-12)

UINT16

Time Stamp

(20YY/MM/DD

HH:MM:SS)

2702 RO

High-order Byte: Day (1-31)

Low-order Byte: Hour (0-23)

UINT16

2703 RO

High-order Byte: Minute (0-59)

Low-order Byte: Second (0-59)

UINT16

2704

RO

Millisecond

UINT16

2705

RO

Mains kWh

INT32

x0.01 kWh

2707

RO

SM1 kWh

INT32

2709

RO

SM2 kWh

INT32

2711

RO

SM3 kWh

INT32

2713

RO

SM4 kWh

INT32

2715

RO

SM5 kWh

INT32

2717

RO

SM6 kWh

INT32

2719

RO

SM7 kWh

INT32

2721

RO

SM8 kWh

INT32

2723

RO

SM9 kWh

INT32

2725

RO

SM10 kWh

INT32

2727

RO

SM11 kWh

INT32

2729

RO

SM12 kWh

INT32

Table 5-17 Monthly Energy Log

Notes:

1. This Register represents the Month when it is read. To read the Monthly Energy Log, this register must be first written to indicate the PMC-512-D which log to load from memory. The range of this register is from 0 to 24, which represents the Present Month and the Last 24 Months.

2. For each Monthly Energy Log, the time stamp shows the exact Self-Read time (20YY/MM/DD/HH:MM:SS) when the log was recorded. For the monthly Energy Log of the Present Month, the time stamp shows the current time of the meter because the present month is not yet over.

3. The Monthly Energy Log for this Month can be modified, but the Monthly Energy Log for the last 24 months are Read Only.

5.5 Demands

5.5.1 Present Demands

Register

Property

Description

Format

Scale

Unit

3500

RO

Mains Current Demand*

FP32

x1

A

3502

RO

SM1 Current Demand

FP32

3504

RO

SM2 Current Demand

FP32

3506

RO

SM3 Current Demand

FP32

3508

RO

SM4 Current Demand

FP32

3510

RO

SM5 Current Demand

FP32

3512

RO

SM6 Current Demand

FP32

3514

RO

SM7 Current Demand

FP32

3516

RO

SM8 Current Demand

FP32

3518

RO

SM9 Current Demand

FP32

3520

RO

SM10 Current Demand

FP32

3522

RO

SM11 Current Demand

FP32

3524

RO

SM12 Current Demand

FP32

3526

RO

Mains kW Demand*

FP32

W

3528

RO

SM1 kW Demand

FP32

3530

RO

SM2 kW Demand

FP32

3532

RO

SM3 kW Demand

FP32

3534

RO

SM4 kW Demand

FP32

3536

RO

SM5 kW Demand

FP32

3538

RO

SM6 kW Demand

FP32

3540

RO

SM7 kW Demand

FP32

3542

RO

SM8 kW Demand

FP32

3544

RO

SM9 kW Demand

FP32

3546

RO

SM10 kW Demand

FP32

3548

RO

SM11 kW Demand

FP32

3550

RO

SM12 kW Demand

FP32

*When Mains Current Type is Residual, this register is invalid

Table 5-18 Present Demand Measurements

50

CET Inc.

5.5.2 Peak Demand Log of This Month (Since Last Reset)

Register

Property

Description

Format

Scale

Unit

4000

RO

Mains Current Demand*

FP32

x1

A

4002

RO

Timestamp

UINT32 s

4004

RO

SM1 Current Demand

FP32

x1

A

4006

RO

Timestamp

UINT32 s

4008

RO

SM2 Current Demand

FP32

x1

A

4010

RO

Timestamp

UINT32 s

…

4048

RO

SM12 Current Demand

FP32

x1

A

4050

RO

Timestamp

UINT32 s

4052

RO

Mains kW Demand*

FP32

x1

A

4054

RO

Timestamp

UINT32 s

4056

RO

SM1 kW Demand

FP32

x1

W

4058

RO

Timestamp

UINT32 s

4060

RO

SM2 kW Demand

FP32

x1

W

4062

RO

Timestamp

UINT32 s

…

4100

RO

SM12 kW Demand

FP32

x1

W

4102

RO

Timestamp

UINT32 s

*When Mains Current Type is Residual, this register is invalid

Table 5-19 Peak Demand Log of This Month (Since Last Reset)

5.5.3 Peak Demand Log of Last Month (Before Last Reset)

Register

Property

Description

Format

Scale

Unit

4104

RO

Mains Current Demand*

FP32

x1

A

4106

RO

Timestamp

UINT32 s

4108

RO

SM1 Current Demand

FP32

x1

A

4110

RO

Timestamp

UINT32 s

4112

RO

SM2 Current Demand

FP32

x1

A

4114

RO

Timestamp

UINT32 s

…

4152

RO

SM12 Current Demand

FP32

x1

A

4154

RO

Timestamp

UINT32 s

4156

RO

Mains kW Demand*

FP32

x1

A

4158

RO

Timestamp

UINT32 s

4160

RO

SM1 kW Demand

FP32

x1

W

4162

RO

Timestamp

UINT32 s

4164

RO

SM2 kW Demand

FP32

x1

W

4166

RO

Timestamp

UINT32 s

…

4204

RO

SM12 kW Demand

FP32

x1

W

4206

RO

Timestamp

UINT32 s

*When Mains Current Type is Residual, this register is invalid

Table 5-20 Peak Demand Log of Last Month (Before Last Reset)

5.6 Log Register

5.6.1 SOE Log

Register

Property

Description

Format

10000-10008

RO

Event 1

See Appendix A

SOE Log Data

Structure

10009-10017

RO

Event 2

10018-10026

RO

Event 3

10027-10035

RO

Event 4

….

14599~14607

RO

Event 512

Table 5-21 SOE Log

51

CET Inc.

Offset

Property

Description

Format

Range/Note

+0 RO

High-order Byte: Event Classification

UINT16

See Appendix A

Low-order Byte: Sub-Classification

See Appendix A

+1 RO

High-order Byte: Year

UINT16

0-99 (Year-

2000)

Low-order Byte: Month

1 to 12

+2 RO

High-order Byte: Day

UINT16

1 to 31

Low-order Byte: Hour

0 to 23

+3

RO

High-order Byte: Minute

UINT16

0 to 59

Low-order Byte: Second

0 to 59

+4

RO

Millisecond

UINT16

0 to 999

+5

RO High-order Byte: Reserved

UINT16

RO Low-order Byte: Status

UINT16

+6

RO

Event Value High Word

INT16

+7

RO

Event Value Low Word

INT16

+8

RO

Channel No.

UINT16

Table 5-22 SOE Log Data Structure

5.6.2 Data Recorder Log

Register

Property

Description

Format

21000

RW

DR Log x Index

UINT32

21002 RO

High-order Byte: Year (0-99)

Low-order Byte: Month (1-12)

UINT16

21003 RO

High-order Byte: Day (1-31)

Low-order Byte: Hour (0-23)

UINT16

21004 RO

High-order Byte: Minute (0-59)

Low-order Byte: Second (0-59)

UINT16

21005

RO

Millisecond

UINT16

21006

RO

Parameter #1

FP32

21008

RO

Parameter #2

…

… 21124

RO

Parameter #60

Table 5-23 DR Log

Notes:

1) Writing “n” to the DR Log X Index register will load the Log Record at pointer position “n” into the DR Log X Buffer from the device’s memory.

2) Writing an index value that points to a Log Record that is either already expired or has not been generated yet to the DR Log X Index register will generate an exception response with the Illegal Data Value error code (0x03) as defined by the Modbus protocol.

5.7 Device Setup

5.7.1 Basic Setup Parameters

Register

Property

Description

Format

Range, Default*

6000

RW

Nominal Voltage

UINT16

1 to 400 V, 240*

6001 RW Mains Current Type

UINT16

0*= Incomer

1= Residual

6002

RW

Mains CT Primary

1

UINT16

1 to 3000A/mA, 400*

6003

RW

Mains CT Secondary

UINT16

1 to 50V (x0.1), 40*

6004

RW

Mains Breaker Rating

UINT16

1 to 3000A, 250*

6005

RW

Reserved

UINT16

6006

RW

Demand Period

UINT16

1 to 60 mins, 15*

6007

RW

Number of Sliding Windows

UINT16

1* to 15

6008

RW

Demand Log Self-Read Time

2

UINT16

0*

6009

RW

Demand Log Self-Read Mode

UINT16

0=Auto*, 1=Manual

6010 RW

Monthly Energy Log

Self-Read Time2

UINT16 0*

6011

RW

Reserved

6012

RW

Arm before Execute

UINT16

0=Disabled*, 1=Enabled

6013

RW

DO Pulse Width

0* to 6000 (x0.1s)

6014 RW Energy Pulse Constant UINT16

0=1 imp/kWh, 1=10 imp/kWh

2=100imp/kWh,3=400imp/kW*

52

CET Inc.

4=1000 imp/kWh 5=3200 imp/kWh

6015

RW

LED EN Pulse Mode3

UINT16

0* to 13

6016 RW Date Format UINT16

0=YYYY/MM/DD*

1=MM/DD/YYYY

2=DD/MM/YYYY

6017

RW

Demo

UINT16

0=Disabled*, 1=Enabled

Table 5-24 Basic Setup

Notes:

1. The unit of Mains CT Primary is A for Mains Current or mA for Residual Current.

2. The Demand Log’s and Monthly Energy Log’s Self-Read Time support the following two options: a) A zero value means that the Self-Read will take place at 00:00 of the first day of each month. b) A non-zero value means that the Self-Read will take place at a specific time and day based on the formula: Self-Read

Time = (Day x 100 + Hour) where 0 ≤ Hour ≤ 23 and 1 ≤ Day ≤ 28. For example, the value 1512 means that the SelfRead will take place at 12:00pm on the 15th day of each month.

3. The LED Energy Pulse Modes are listed in the table below:

Value

Parameter

Value

Parameter

Value

Parameter

0

Disabled

5

SM4 kWh

10

SM9 kWh

1

Mains kWh

6

SM5 kWh

11

SM10 kWh

2

SM1 kWh

7

SM6 kWh

12

SM11 kWh

3

SM2 kWh

8

SM7 kWh

13

SM12 kWh

4

SM3 kWh

9

SM8 kWh

Table 5-25 LED Energy Pulse Modes

5.7.2 AI Setup

Register

Property

Description

Format

Range, Default*

6050

RW

AI Type

UINT16

0=4~20mA*, 1=0~20mA

6051 RW AI Zero Scale INT32

-999,999 to +999,999 400*

6053 RW AI Full Scale INT32

-999,999 to +999,999

2000*

Table 5-26 AI Setup

5.7.3 DI Setup

Register

Property

Description

Format

Range, Default*

6100 RW DI Excitation1 UINT16

0 = 220VDC*

1=220VAC, 2 =110VDC

3=110VAC, 4=48VDC

5=-48VDC

6101

RW

DI1 Debounce2

UINT16

1 to 9999 ms, 40*

6102

RW

DI2 Debounce2

UINT16

6103

RW

DI3 Debounce2

UINT16

…

RW

…

UINT16

6112

RW

DI12 Debounce2

UINT16

6113

RW

DI13 Debounce2

UINT16

Table 5-27 AI Setup

Notes:

1) For the model that supports 48VDC for DI, the DI Excitation can only be ±48V (such as PMC-512-DX43AE). For the model that supports 240VDC for DI, the DI Excitation option are 110VAC, 110VDC, 220VAC or 220VDC (such as PMC-512-DX43BE).

2) The DI Excitation must be set correctly for the DI Debounce to work.

5.7.4 Communication Setup Parameters

Register

Property

Description

Format

Range, Default*

6200

RW

COM1 Unit ID

UINT16

1 to 254, 100*

6201 RW COM1 Baud Rate UINT16

0=1200, 1=2400, 2=4800, 3=9600,

4=19200, 5=38400*, 6=57600

6202

RW

COM1 Comm. Config.

UINT16

1=8O1, 2=8E1*, 3=8N1

6203

RW

COM2 Unit ID

UINT16

1 to 254, 100*

6204 RW COM2 Baud Rate UINT16

0=1200, 1=2400, 2=4800, 3=9600*,

4=19200, 5=38400, 6=57600

6205

RW

COM2 Comm. Config.

UINT16

1=8O1, 2=8E1*, 3=8N1

Table 5-28 Communication Setup

53

CET Inc.

5.7.5 Alarm Setup

Register

Property

Description

Format

Range/Default*

6400

RW

Universal Hysteresis1

UINT16

0 to 100 (x0.1%), 20*

6401

RW

Current ON Threshold2

UINT16

0 to 100 (x0.1%), 50*

6402

RW

Current ON Time Delay

UINT16

0 to 9999 (s), 10s*

6403

RW

Current OFF Time Delay

UINT16

0 to 9999 (s), 30s*

6404~

6409

RW Reserved

6410

RW

Voltage H Alarm Limit2

UINT16

0* to 5000V (x0.1)

6411

RW

Voltage H Alarm Time Delay

UINT16

0* to 9999 (s)

6412

RW

Voltage L Alarm Limit2

UINT16

0* to 5000V (x0.1)

6413

RW

Voltage L Alarm Time Delay

UINT16

0* to 9999 (s)

6414

RW

Voltage Alarm Trigger

UINT16

0* to 0x0003

6415

RW

Mains Current H Alarm Threshold (%)

2, 3

UINT16

0 to 1000 (x0.1), 600*

6416

RW

Mains Current H Alarm Time Delay

UINT16

0 to 9999 (s), 10*

6417

RW

Mains Current HH Alarm Threshold (%)

2, 3

UINT16

0 to 1000 (x0.1), 800*

6418

RW

Mains Current HH Alarm Time Delay

UINT16

0* to 9999 (s), 10

6419

RW

Mains Current L Alarm Threshold (%)

2, 3

UINT16

0* to 1000 (x0.1)

6420

RW

Mains Current L Alarm Time Delay

UINT16

0* to 9999 (s)

6421

RW

Mains Current LL Alarm Threshold (%)2

UINT16

0* to 1000 (x0.1)

6422

RW

Mains Current LL Alarm Time Delay

UINT16

0* to 9999 (s)

6423

RW

Mains Current H Alarm Trigger

UINT16

0* to 0x0003

6424

RW

Residual Current H Alarm Threshold24

Bitmap

0* to 10000mA (x0.1)

6425

RW

Residual Current H Alarm Time Delay

UINT16

0* to 9999 (s)

6426

RW

Residual Current HH Alarm Threshold24

Bitmap

0* to 10000mA (x0.1)

6427

RW

Residual Current HH Alarm Time Delay

UINT16

0* to 9999 (s)

6428

RW

Residual Current H Alarm Trigger

UINT16

0* to 0x0003

6429~

6433

Reserved

6434 RW SM Current Alarm Channel Enable UINT16

0* to 0x0FFF5

0 = Disabled

1 = Enabled

6435

RW

SM I-H Alarm Threshold2

UINT16

0 to 1000 (x0.1), 600*

6436

RW

SM I-H Alarm Time Delay

UINT16

0 to 9999 (s), 10*

6437

RW

SM I-HH Alarm Threshold2

UINT16

0 to 1000 (x0.1), 800*

6438

RW

SM I-HH Alarm Time Delay

UINT16

0 to 9999 (s), 10*

6439

RW

SM I-L Alarm Threshold2

UINT16

0* to 1000 (x0.1)

6440

RW

SM I-L Alarm Time Delay

UINT16

0* to 9999 (s)

6441

RW

SM I-LL Alarm Threshold2

UINT16

0* to 1000 (x0.1)

6442

RW

SM I-LL Alarm Time Delay

UINT16

0* to 9999 (s)

6443

RW

Circuit I Alarm Trigger

UINT16

0* to 0x0003

6444

RW

Reserved

Bitmap

6445 RW DI1 Alarm Configuration UINT16

0 = Disabled*

1 = DI1 Closed Trigger

2 = DI1 Open Trigger

6446

RW

DI1 Alarm Time Delay

UINT16

0* to 9999 (s)

6447

RW

DI1 Alarm Trigger

UNIT16

0* to 0x0003

…

RW

…

UINT16

…

6481 RW DI13 Alarm Configuration UINT16

0 = Disabled*

1 = DI12 Closed Trigger

2 = DI12 Open Trigger

6482

RW

DI123 Alarm Time Delay

UINT16

0* to 9999 (s)

6483

RW

DI13 Alarm Trigger

UINT16

0* to 0x0003

6484 RW AI Alarm Enable UINT16

0x00* to 0x0F

See Notes 6)

6485 RW AI HH Alarm Threshold2 INT32

-999,999 to 999,999, 0*

6487

RW

AI HH Alarm Time Delay

UINT16

0 to 9999 (s), 10*

6488 RW AI H Alarm Threshold2 INT32

-999,999 to 999,999, 0*

6490

RW

AI H Alarm Time Delay

UINT16

0* to 9999 (s)

6491 RW AI L Alarm Threshold2 INT32

-999,999 to 999,999,

10*

6493

RW

AI L Alarm Time Delay

UINT16

0* to 9999 (s)

6494

RW

AI LL Alarm Threshold2

INT32

-999,999 to 999,999,

54

CET Inc.

0*

6496RWAI LL Alarm Time Delay

UINT16

0 to 9999 (s), 10*

6497

RW

AI Alarm Trigger

UINT16

0* to 0x0003

Table 5-29 Alarm Setup Parameters

Notes:

1) The calculation method for the Universal Hysteresis is listed below:

Universal Hysteresis=

∣Alarm Threshold-Alarm Return Threshold∣

Alarm Threshold

×%

2) If the Threshold/Limit is set to 0, the corresponding channel alarm is disabled.

3) The Incomer Current Alarm is invalid when the Mains Current Type is Residual.

4) The Residual Current Alarm is invalid when the Mains Current Type is Incomer.

5) Bits 0 to 11 represent the SM Current Alarm Enable for SM1 to 12 respectively, with the bit value “0” meaning Disabled and “1” meaning Enabled. For example, 0x003F means SM1 to 6 are enabled for Current Alarm and SM7 to 12 are disabled.

6) 0x03 stands for 2 bits (BIN). Bit 0 and 1 represents RO trigger enable and Alarm LED enable respectively. For every bit, 0=Alarm Disabled and 1=Alarm Enabled. For example, 0x03 means that both RO trigger and Alarm LED are enabled for AI

Alarm.

5.7.6 SM Setup Parameters

Register

Property

Description

Format

Range, Default*

6600WOSM CT Primary (Bulk)

UINT16

1 to 3000A

6601WOSM CT Secondary (Bulk)

UINT16

1 to 100mA

6602WOSM Breaker Rating (Bulk)

UINT16

1 to 3000A

6603

RW

SM1 CT Primary

UINT16

1 to 3000 (A), 100*

6604

RW

SM1 CT Secondary

UINT16

1 to 100 (mA), 50*

6605

RW

SM1 Breaker Rating

UINT16

0 to 3000A, 63*

6606

RW

SM2 CT Primary

UINT16

1 to 3000 (A), 100*

6607

RW

SM2 CT Secondary

UINT16

1 to 100 (mA), 50*

6608

RW

SM2 Breaker Rating

UINT16

0 to 3000A, 63*

6609

RW

SM3 CT Primary

UINT16

1 to 3000 (A), 100*

6610

RW

SM3 CT Secondary

UINT16

1 to 100 (mA), 50*

6611

RW

SM3 Breaker Rating

UINT16

0 to 3000A, 63*

6612

RW

SM4 CT Primary

UINT16

1 to 3000 (A), 100*

6613

RW

SM4 CT Secondary

UINT16

1 to 100 (mA), 50*

6614

RW

SM4 Breaker Rating

UINT16

0 to 3000A, 63*

6615

RW

SM5 CT Primary

UINT16

1 to 3000 (A), 100*

6616

RW

SM5 CT Secondary

UINT16

1 to 100 (mA), 50*

6617

RW

SM5 Breaker Rating

UINT16

0 to 3000A, 63*

6618

RW

SM6 CT Primary

UINT16

1 to 3000 (A), 100*

6619

RW

SM6 CT Secondary

UINT16

1 to 100 (mA), 50*

6620

RW

SM6 Breaker Rating

UINT16

0 to 3000A, 63*

6621

RW

SM7 CT Primary

UINT16

1 to 3000 (A), 100*

6622

RW

SM7 CT Secondary

UINT16

1 to 100 (mA), 50*

6623

RW

SM7 Breaker Rating

UINT16

0 to 3000A, 63*

6624

RW

SM8 CT Primary

UINT16

1 to 3000 (A), 100*

6625

RW

SM8 CT Secondary

UINT16

1 to 100 (mA), 50*

6626

RW

SM8 Breaker Rating

UINT16

0 to 3000A, 63*

6627

RW

SM9 CT Primary

UINT16

1 to 3000 (A), 100*

6628

RW

SM9 CT Secondary

UINT16

1 to 100 (mA), 50*

6629

RW

SM9 Breaker Rating

UINT16

0 to 3000A, 63*

6630

RW

SM10 CT Primary

UINT16

1 to 3000 (A), 100*

6631

RW

SM10 CT Secondary

UINT16

1 to 100 (mA), 50*

6632RWSM10 Breaker Rating

UINT16

0 to 3000A, 63*

6633

RW

SM11 CT Primary

UINT16

1 to 3000 (A), 100*

6634

RW

SM11 CT Secondary

UINT16

1 to 100 (mA), 50*

6635RWSM11 Breaker Rating

UINT16

0 to 3000A, 63*

6636

RW

SM12 CT Primary

UINT16

1 to 3000 (A), 100*

6637

RW

SM12 CT Secondary

UINT16

1 to 100 (mA), 50*

6638RWSM12 Breaker Rating

UINT16

0 to 3000A, 63*

Table 5-30 SM Setup Parameters

55

CET Inc.

5.7.7 Data Recorder Setup

Register

Property

Description

Format

Range, Default*

6900RWTrigger Mode

UINT16

0=Disabled, 1=Enabled

6901 RW Recording Mode UINT16

0*=Stop-When-Full 1=First-In-First-Out

6902RWRecording Depth

UINT16

0 to 5000

6903RWRecording Interval

UINT32

60 to 345600s, 600*

6905RWRecording Offset

1

UINT16

0* to 43200s

6906RWParameters Number

UINT16

0* to 60

6907RWParameter1

UINT16

Please refer to Appendix B for a

complete list of the Data

Recorder Parameters.

6908RWParameter2

UINT16

6909RWParameter3

UINT16

……UINT16

6966RWParameter60

UINT16

Table 5-31 DR Parameter Setup

Note:

1. Recording Offset < Recording Interval.

5.8 Time Registers

There are two sets of Time registers supported by the PMC-PMC-512-D – Year / Month / Day / Hour /

Minute / Second (Registers # 60000 to 60002) and UNIX Time (Register # 60004). When sending time to

the PMC-512-D over Modbus communications, care should be taken to only write one of the two Time

register sets. All registers within a Time register set must be written in a single transaction. If registers

60000 to 60004 are being written to at the same time, both Time register sets will be updated to reflect

the new time specified in the UNIX Time register set (60004) and the time specified in registers 60000-

60002 will be ignored. Writing to the Millisecond register (60003) is optional during a Time Set operation.

When broadcasting time, the function code must be set to 0x10 (Pre-set Multiple Registers). Incorrect

date or time values will be rejected by the meter. In addition, attempting to write a Time value less than

Jan 1, 2000 00:00:00 will be rejected.

Register

Property

Description

Format

Note

60000 9000 RW

High-order Byte: Year

UINT16

0-37 (Year-2000)

Low-order Byte: Month

1 to 12

60001 9001 RW

High-order Byte: Day

UINT16

1 to 31

Low-order Byte: Hour

0 to 23

60002 9002 RW

High-order Byte: Minute

UINT16

0 to 59

Low-order Byte: Second

0 to 59

60003

9003RWMillisecond

UINT16

0 to 999

60004

~

60005

9004

~

9005

RW UNIX Time UINT32

0x386D4380 to 0x 7FE8177F

The corresponding time is

2000.01.01 00:00:00 to

2037.12.31 23:59:59

(GMT 0:00 Time Zone)

Table 5-32 Time Registers

5.9 Clear/Reset Control

Register

Property

Description

Format

Note

9600WOClear All Latched Alarms

UINT16

Writing “0xFF00” to the

register executes the

described action

9601 WO Clear SOE Log UINT16

9602WOClear Energy

1

UINT16

9603 WO

Clear Peak Demand of This

Month (Since Last Reset) 1

UINT16

9604WOClear DR Log

UINT16

Writing “0xFF00” to the

register executes the

described action

9605WOClear All

2

UINT16

9606WOReset to Default

UINT16

9607WOClear Monthly Energy Log

UINT16

56

CET Inc.

9608WOHall Zero Setting

UINT16

9609WOReset Hall Zero Parameters

UINT16

Table 5-33 Clear/Reset Control Setup

Notes:

1) The following table provides a detailed description of the different values that can be written to the Clear Energy and Clear

Peak Demand of This Month (Since Last Reset) registers to clear the different Energy and Peak Demand registers for Mains

Meter and SMs. Writing “0xAAFF” to clear all the Energy and Peak Demand of This Month (Since Last Reset) log for all

channels.

Key

Clear Register Values

Description

High Order Low Order

1

0xAA

(Mains and

SMs)

0x00

Clear Mains (0x0000)

0x01

Clear SM1(0x0001)

…

0x11

Clear SM11 (0x0011)

0x12

Clear SM12 (0x0012)

Table 5-34 Clear Energy and Peak Demand Register Values

2) Writing “0xFFFF” to the register clears Energy Measurements, Peak Demand Log of This Month (Since Last Rest), Peak

Demand Log of Last Month (Before Last Reset), SOE Log and DR Log that are listed in Section 5.3 to 5.6.

5.10 Remote Control

The DO Control registers are implemented as both “Write-Only” Modbus Coil Registers (0XXXXX) and

Modbus Holding Registers (4XXXXX), which can be controlled with the Force Single Coil command

(Function Code 0x05) or the Preset Multiple Hold Registers (Function Code 0x10). The PMC-512-D does

not support the Read Coils command (Function Code 0x01) because DO Control registers are “Write-

Only”.

The PMC-512-D adopts the ARM before EXECUTE operation for the remote control of its Digital

Outputs if this function is enabled through the Arm Before Execute Enable Setup register (6014), which

is disabled by default. Before executing an OPEN or CLOSE command on a Digital Output, it must be

“Armed” first. This is achieved by writing the value 0xFF00 to the appropriate register to “Arm” a

particular DO operation. The DO will be “Disarmed” automatically if an “Execute” command is not

received within 15 seconds after it has been “Armed”. If an “Execute” command is received without

first having received an “Arm” command, the meter ignores the “Execute” command and returns the

0x04 exception code.

Register

Property

Description

Format

Note

9100

WO

Arm DO Close

UINT16

Writing “0xFF00”

to the register to

perform the

described action.

9101WOExecute DO Close

UINT16

9102

WO

Arm DO Open

UINT16

9103WOExecute DO Open

UINT16

Table 5-35 DO Control

5.11 Meter Information

Register

Property

Description

Format

Note

60200

~

60219

9800

~

9819

RO Meter model UINT16 See Note 1)

60220 9820 RO Firmware Version UINT16

e.g. 10000 shows

the version is

V1.00.00

60221 9821 RO Modbus Version UINT16

e.g. 10 shows the

version is V1.0

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60222

9822

RO

Firmware Update Date: Year-2000

UINT16

e.g. 160110 means

January 10, 2016

60223

9823

RO

Firmware Update Date: Month

UINT16

60224

9824

RO

Firmware Update Date: Day

UINT16

60225 9825 RO Serial Number: High-Order Byte UINT16

e.g. 1701030100

means it is the

100th device that

are produced in

January 3, 2017

60026 9826 RO Serial Number: Low-Order Byte UINT16

60227

9827

RO

Reserved

UINT16

60228

9828

RO

Reserved

UINT16

60229 9829 RO

Bit0: Input Voltage

UINT32

0=-48V

1=240/336VDC

Bit1: Power Supply

0=20 to 60VDC

1=88 to 370VDC

Bit2: DI Excitation

0=48VDC

1=240VDC

60231 9831 RO Hardware Version UINT16

e.g. 10 shows the

version is V1.0

Table 5-36 Meter Information

Note:

1. The Meter Model appears in registers 9800 to 9819 (60200 to60219) and contains the ASCII encoding of the string “PMC-

512-D” as shown in the following table.

Register

Value (Hex)

ASCII

60200

9800

0x50

P

60201

9801

0x4D

M

60202

9802

0x43

C

60203

9803

0x2D

-

60204

9804

0x35

5

60205

9805

0x31

1

60206

9806

0x32

2

60207

9807

0x2D

-

60208

9808

0x44

D

60209-60219

9809-9819

0x20

<Null>

Table 5-37 ASCII Encoding of “PMC-512-D”

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Appendix A - SOE Event Classification

Event

Classification

Sub-

Classification

Channel

Event

Value

DPI Description

0

1

--

2/1

DI1 Close/DI1 Open

2

--

2/1

DI2 Close/DI2 Open

3

--

2/1

DI3 Close/DI3 Open

4

--

2/1

DI4 Close/DI4 Open

5

--

2/1

DI5 Close/DI5 Open

6

--

2/1

DI6 Close/DI6 Open

7

--

2/1

DI7 Close/DI7 Open

8

--

2/1

DI8 Close/DI8 Open

9

--

2/1

DI9 Close/DI9 Open

10

--

2/1

DI10 Close/DI10 Open

11

--

2/1

DI11 Close/DI11 Open

12

--

2/1

DI12 Close/DI12 Open

13

--

2/1

DI13 Close/DI13 Open

1

1 -- -- 2/1

DO Operated/Released by Remote Control

2

--

2/1

DO Operated/Released by Setpoint

2

1

Alarm

Channel¹

Trigger

Value

(x1000)

Current HH Alarm Active

2

Current H Alarm Active

3

Current L Alarm Active

4

Current LL Alarm Active

5

Trigger

Value

(x100)

Voltage H Alarm Active

6

Voltage L Alarm Active

7

Mains Current HH Alarm Active

8

Mains Current LL Alarm Active

9

Mains Current H Alarm Active

10

Mains Current L Alarm Active

11

Trigger

Value

(x1000)

Residual Current HH Alarm Active

12 Residual Current H Alarm Active

13-14

Reserved

15

Alarm

Channel¹

Trigger

Value

(x1000)

AI HH Alarm Active

16

AI H Alarm Active

17

AI L Alarm Active

18

AI LL Alarm Active

19

DI Status

DI Alarm Active

3

1

Method:

Front Panel

Power On

2

Power Off

3

Set Time

4

Set System Parameters

5

Set Communication Parameters

6

Set AI Parameters

7

Set DI Parameters

8

Set Alarm Parameters

9

Set SM Parameters

10

Set DR Parameters

11

Set Calibration Parameters

12

Reset Alarm

13

Clear Energy

14

Clear Historic Energy

15

Clear Present Max Demand Logs

16

Clear All Demand Logs

17

Clear SOE

18

Clear DR Logs

19

Clear All Recorder

20

Load Factory Default Configuration

21

Load Communication Default Configuration

22

Preset Energy

23

Set First Power On

24

Hall Calibration

25

Recover Hall Calibration

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4

1

First Power On

2

A/D Fault

3

Internal Power Fault

4

FRAM Fault

5

FLASH Fault

6

System Parameters Fault

7

Internal Parameters Fault

Note:

The following table provides a detailed description of the Channel Number.

Channel Number

Description

0

Invalid

1

I1

2

I2

…

11

I11

12

I12

13

DI1

14

DI2

…

24

DI12

25

DI13

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Appendix B - Data Recorder Parameters

1) SMs Group Structure

Offset

Description

+0

Current

+1

kW

+2

%Loading

+3

Current Demand

+4

kW total Demand

+5

kWh

SMs Real-time and Demand Measurement

Key

Description

Key

Description

1~6

SM1

37~42

SM7

7~12

SM2

43~48

SM8

13~18

SM3

49~54

SM9

19~24

SM4

55~60

SM10

25~30

SM5

61~66

SM11

31~36

SM6

67~72

SM12

2) Mains Current and Voltage Real-time Measurement

Key

Description

73

Voltage

74

Mains Current

75

Residual Current

76

Reserved

77

kW

78

%Loading

79

Current Demand

80

kW Total Demand

81

kWh

3) AI Measurement

Key

Description

82

AI

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Appendix C - Technical Specifications

Voltage Inputs

Standard

Optional Range

240V 48VDC

Burden

Overload

240V

48VDC

0-400VDC (RMS), 0.05xUn-Umax 0-60VDC (RMS), 0.05xUn-Umax <0.05VA @240VDC

1.2xUn continuous, 2xUn for 10s

Current Inputs

Mains Circuit Hall Effect Split-Core CTs

In

Range Overload Starting Current

Nominal Output

200A/400A/600A/800A/1000A/2000A

0.5% to 120% In

1.2xIn continuous, 2xIn for 10s

0.15%In

±4VDC

Mains Hall Effect Solid-Core DC Residual CT

In

Range Overload Starting Current

Nominal Output

50mA

0.5% to 100% In

1.2xIn continuous, 2xIn for 10s

0.15%In

±5VDC

Branch Circuit Hall Effect Solid-Core CTs

In

Range Overload Starting Current Burden Output In=50A In=100A

In=200A

50A/100A/200A

0.5% to 100% In

1.2xIn continuous, 2xIn for 10s

0.15%In <0.15W

0 to 25mA 0 to 50mA

0 to 100mA

Power Supply (L+, N-, GND)

Standard (240V)

Optional (48VDC)

Burden

85-264VAC, 88-370VDC, 47-440Hz

20-60VDC

<0.1W

Digital Inputs (13xDI)

Type

48VDC or 240VDC External Excitation

Digital Outputs

Type Loading

Normally Open 5A @ 250VAC or 30VDC

Analog Inputs

Type Overload

0-20 mA or 4-20 mA 500Ω

Installation Torque

Current Input, AI

0.2 N.m

Others

0.4 N.m

Environmental Conditions

Operating Temp.

Storage Temp. Humidity Atmospheric Pressure

Altitude

-25°C to 70°C

-40°C to 85°C 5% to 98% non-condensing 70 kPa to 106 kPa

≤3,000m

Mechanical Characteristics

Unit Dimensions

126x90x65 mm

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Appendix D - Accuracy Specifications

Parameters

Accuracy

Resolution

Voltage

±0.5%

0.01V

Current

±0.5%

0.001A

Residual Current

±1.0%

0.01mA

kW

±0.5%

0.001kW

kWh

Class 0.5 (Main Unit)

Class 1.0 (including Hall Effect CT)

0.01kWh

Analog Input

±0.5%

-

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CET Inc.

Appendix E - Standards Compliance

Safety Requirements

CE LVD 2014 / 35 / EU

EN 61010-1: 2010, EN 61010-2-030: 2010

Electrical safety in low voltage distribution systems up to 1000VAC and 1500 VDC

IEC 61557-12: 2008

Insulation

Dielectric test:

Insulation resistance:

Impulse voltage:

2kV @ 1 minute

>100MΩ

6kV, 1.2/50µs

IEC 60255-5-2000

Electromagnetic Compatibility

CE EMC Directive 2014 / 30 / EU (EN 61326: 2013)

Immunity Tests

Electrostatic Discharge

EN 61000-4-2: 2009

Radiated Fields

EN 61000-4-3: 2006+A1: 2008+A2: 2010

Fast Transients

EN 61000-4-4: 2012

Surges

EN 61000-4-5: 2006

Conducted Disturbances

EN 61000-4-6: 2009

Magnetic Fields

EN 61000-4-8: 2010

Oscillatory Waves

EN 61000-4-12: 2006

Emission Tests

Limits and methods of measurement of

electromagnetic disturbance characteristics of industrial, scientific and medical (ISM) radio-

frequency equipment

EN 55011: 2009 + A1: 2010 (CISPR 11)

Limits and methods of measurement of radio

disturbance characteristics of information technology

equipment

EN 55022: 2010+AC: 2011

(CISPR 22)

Limits for harmonic current emissions for equipment with rated current ≤16 A

EN 61000-3-2: 2014

Limitation of voltage fluctuations and flicker in low-

voltage supply systems for equipment with rated

current ≤16 A

EN 61000-3-3: 2013

Emission standard for residential, commercial and light-industrial environments

EN 61000-6-4: 2007+A1: 2011

Electromagnetic Emission Tests for Measuring Relays and Protection Equipment

EN 61000-4-12: 2006

Mechanical Tests

Vibration Test

Response

IEC 62052-11: 1988 Level I

Endurance

IEC 62052-11: 1988Level I

Shock Test

Response

IEC 62052-11: 1988 Level I

Endurance

IEC 62052-11: 1988 Level I

Bump Test

IEC 62052-11: 1988 Level I

Appendix F - Ordering Guide

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CET Inc.

Contact us

CET Electric Technology Headquarters

8/F, Westside, Building 201, Terra Industrial & Tradepark, Che Gong Miao, Shenzhen, Guangdong,

P.R.China 518040

Tel: +86.755.8341.5187

Fax: +86.755.8341.0291

Email: support@cet-global.com

Web: www.cet-global.com