Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANTIdentifies information that is critical for successful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
Summary of Changes
This manual contains new and updated information as indicated in the following
table
New and Updated
Information
This table contains the changes made to this revision.
Top icPag e
Updated wiring diagrams in Chapter 2.19…22
Added CIP message examples to Appendix C75…82
Rockwell Automation Publication 1420-UM001E-EN-P - March 20163
Summary of Changes
Notes:
4Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
6Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Preface
About This Manual
Intended Audience
Catalog Number Explanation
This manual contains detailed information on these topics:
• Mounting and wiring of the unit
• Wiring to native and optional communication port
• Set-up and use of the display module
• Information on metering functionality and measurements
• Use of the display module for configuration, monitoring, and commands
• Discussion of communication options, functionality, configuration, and
operation
• Alarm configuration and operation
• PowerMonitor™ 500 data tables
This manual is intended for qualified personnel. You need a basic understanding
of electric power and energy theory and terminology, and alternating-current
(AC) metering principles.
Bulletin Number
1420 - PowerMonitor 500
1420
Voltage
V1 - 240V AC V-LL
120V AC V-LN/208V AC V-LL
V2 - 400V AC V-LN and
690V AC V-LL
-V1P-485
Auxiliary
P - Pulse (Digital) Output
A - Analog Output
Blank - No Output
Optional Comms
485 - Serial RS-232,
RS-485, Modbus RTU
ENT - EtherNet/IP
and Modbus TCP/IP
Blank - No Comm
Rockwell Automation Publication 1420-UM001E-EN-P - March 20167
Preface
Additional Resources
These documents contain additional information concerning related products
from Rockwell Automation.
ResourceDescription
Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
Product Certifications website, http://www.ab.comProvides declarations of conformity, certificates, and
Provides general guidelines for installing a Rockwell
Automation industrial system.
other certification details.
You can view or download publications at
http://www.rockwellautomation.com/literature/
. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor or
Rockwell Automation sales representative.
8Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 Unit Overview
Chapter 1
About the PowerMonitor 500
Unit
The PowerMonitor™ 500 unit is an AC power monitor with a built-in advanced
configuration system and LCD data display. The unit is designed for
measurement of electrical parameters in various three-phase, single-phase
(2-wire European), and split-phase (3-wire North American single phase)
circuits. The unit modular housing can be mounted in a panel that provides IP65
degree protection from the front. The power monitor can be provided with
analog or digital (relay) outputs. These outputs can be selected to output a pulse
proportional to the real and reactive energy that is measured, or to annunciate
alarms. The instrument can also be equipped with a serial RS-485/RS-232 port
or an EtherNet/IP port.
Equipped with an optional communication port, the unit communicates power
and energy parameters to applications, such as FactoryTalk® EnergyMetrix™
software. The power monitor works with these software applications to address
these key customer applications:
• Load profiling - log power parameters such as real energy, apparent power,
and demand, for analysis of power usage by loads over time
• Cost allocation - report actual energy cost by department or process to
integrate energy information into management decisions
• Billing and sub billing - charge users of energy the actual usage cost rather
than allocating by square footage or other arbitrary methods
• Power system monitoring and control - display and control power flow and
energy utilization
Rockwell Automation Publication 1420-UM001E-EN-P - March 20169
Chapter 1PowerMonitor 500 Unit Overview
PowerMonitor 500 Features
and Functions
The power monitor connects to your three-phase, split-phase (3-wire North
American single phase), or single-phase (2-wire European) AC power system
directly or through instrument transformers (PTs and CTs). It converts
instantaneous voltage and current values to digital values, and uses the resulting
digital values in calculations of voltage, current, power, energy, and demand.
The power monitor family includes several models that combine the following
basic components:
• A panel-mounted power monitor in one of two AC voltage ranges:
120/208V or 400/600V
• An optional pair of digital (relay) outputs
• An optional pair of 0…20 mA analog outputs
• Optional serial RS-232/RS-485 communication supporting Modbus
RTU
• Optional Ethernet port supporting EtherNet/IP and Modbus TCP/IP
• Front protection degree: IP65, NEMA 4X, NEMA 12
• Up to four configurable virtual alarms
• Class 1 (kWh) according to EN62053-21
• Class B (kWh) according to EN50470-3
• Class 2 (kVARh) according to EN62053-23
• Accuracy ±0.5% of reading (current/voltage)
• Metering values display: Four rows x 4 digit
• Energy value display: Ten digit plus sign
• Three-phase (system) variables: V(L-L), V(L-N), A, VA, W, VAR, power
factor, frequency
• Single phase variables: V(L-L), V(L-N), A(L), An (calculated), VA, W,
VAR , pow er f ac tor
• System and single phase average and maximum variables
• Energy measurements (imported/exported): kWh and kVARh
• Revenue grade energy measurements per ANSI C12.1 Class 1.0, ANSI
C12.1
• Run hours counter (8+2 digit)
• Real-time clock function
• Universal power supply: 120/240V AC 50/60 Hz, or 120/240V DC
• Front dimensions: 96 x 96 mm (3.78 x 3.78 in)
10Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 Unit OverviewChapter 1
PowerMonitor 500
1
2
3
4
5
6
Front Panel Features
This section describes the front panel of the unit.
Front Panel Indicators and Control Buttons
The buttons are enhanced touch buttons. The touch icon turns on each time a
button is pressed. We recommend using your forefinger to activate the touch
buttons.
In Metering mode, buttons 4 and 5 (shown in Figure 1
maximum and demand (average) values of the displayed measurements.
Figure 1 - Front Panel
) are used to display the
Display ItemDescription
1Active Alarms AL1…AL4 status indicators.
2Real Energy consumption rate status indicator. Faster flashing indicates higher rate of consumption. Maximum frequency 16 Hz per EN5047-1.
3Exit Button - Press quickly to exit submenus, or to exit the programming menus in Programming mode.
When in the programming menu, press and hold Exit for at least 2 seconds to exit the programming menu. Press Program/select to confirm and return to the
metering display and exit the programming menu without saving your changes.
To save changes, use the Up and Down arrows to go to the End menu, then press Program/Select.
When not in the programming menu, press and hold for more than 2 seconds to view the information pages.
In Metering mode, press quickly to scroll through the energy co unters.
4Up Button - Press the Up button to browse menus and to increase values to be set.
5Down Button - Press the Down button to browse menus and to decrease values to be set.
6Program/select Button - Press and hold the Program/select button for at least 2 seconds to access the programming menu.
When in the programming menu, press Program/select to confirm the programmed values in the active page. Press Program/select to enter and exit edit mode on
the active page.
When not in the programming menu, press Program/select to select measured values for display. Press quickly to scroll through the metering display pages.
See Tab le 1
and Tab le 2 for a list of the measurement screens.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201611
Chapter 1PowerMonitor 500 Unit Overview
Additional Button Functions
Certain buttons have two functions. To access the second function, press and
hold the button for more than 2 seconds.
Displays PowerMonitor 500 information screens, which provide reference
standards, firmware revision, and year of manufacture.
Resets the max (maximum) of the displayed variables. You must press Program/
select to confirm the reset.
Resets the dmd (demand) of the displayed variables. You must press Program/
select to confirm the reset.
12Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 Unit OverviewChapter 1
ROW 1ROW 2ROW 3ROW 4ROW 5
1
2
3
4
5
10
9
6
7
11
8
12
9
10
11
12
Display Features
Display Item Description
1Phase displacement indicator: inductive L, -L, or capacitive C, -C.
The sign is based on the direction of real power flow.
Positive = consuming power, negative = generating power.
See the Geometric Representation of Power and Power Factor
In Programming mode, the indicator displays E when a parameter can be edited.
2Indicates the measured value phase (line-to-neutral L1 or line-to-line L12).
3Indicates the measured value phase (line-to-neutral L2 or line-to-line L23).
4Indicates the measured value phase (line-to-neutral L3 or line-to-line L31).
5Engineering unit and multiplier indicator (k, M, V, W, A, var, PF, Hz, An).
6ALR: the alarm display function is active. PROG: the programming function is active.
7Area set aside for energy counters (see Tabl e 1
8Indicates that metering values are dmd (demand) or MAX (maximum) values.
Figure 2 - Features
in Appendix A for more information.
), text messages, date and time (format: dd.mm.yy/hh:mm).
Display Icons
Display ItemDescription
9Indicates that the metering values displayed are system (three-phase) values.
10Indicates a phase sequence error alarm for Voltage rotation.
11Configuration lock switch is not active. Always indicates unlocked.
12Indication of serial RS-485/RS-232 data transmission (TX) and reception (RX).
Alarm Icons
• Indicates a high value alarm
• Indicates a low value alarm
Rockwell Automation Publication 1420-UM001E-EN-P - March 201613
Chapter 1PowerMonitor 500 Unit Overview
IMPORTANT
Selecting Data to Display
Ta b l e 1 and Ta b l e 2 provide a guide to navigation through the metering data
displays available on the front panel display. Row 1…Row 5 indicate the rows of
the display (see Figure 2 on page 13
).
Press for <2 seconds to cycle through the data that is displayed in Row 1
of the display.
Selected data for Row 1 remains displayed until is pressed.
Table 1 - Row 1 Data
Parameters123456789 10
Row 1Tot al kWh
(+)
Tot al kVARh
(+)
Tot al kWh (-)Tot al kVARh
(-)
kWh (+)
part.
kVARh (+)
part.
kWh (-)
part.
kVARh (-)
part.
Run Hours
(99999999.99)
RTC
Press for <2 seconds to cycle through the data that is displayed in Rows
2…5 of the display.
Selected data for Rows 2…5 displays momentarily and then returns to the default
display.
Use and to cycle through the max, instantaneous, and demand
(dmd) values.
The appropriate data is displayed based on the configured system. For
example, for delta (3P) systems, individual line data is not displayed for lineto-neutral voltage, VA, VAR, W, and power factor.
14Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 Unit OverviewChapter 1
IMPORTANT
To access information pages, press and hold for more than 2 seconds,
then press and to select information items, as shown in Ta b l e 3
After a period of inactivity, the information pages close, and the display returns to
the default screen.
Information items are not displayed for options that are not installed. For
example, a module that does not have the analog output option does not
display analog parameters (columns 11 and 12 in Tabl e 3
Table 3 - Rows 1…5 Information Pages
Page
No.
Row 1Serial
Row 2Yr. xxCT.rA0.001…
Row 3rEL1.0…9
Row 4A.10Pt.rAOut2Set 2Set 2Set 2Set 2Hi.A
Row 51…60
123 456789101112131415
Number
(9
digits)
Conn.
xxx
(3PN/
3P/3P1/
3P2/1P/
Status
Indicator
Pulse
kWh
Pulse
OUT1
kWh/
kVARh
(1)
Pulse
OUT2
kWh/
kVARh
Remote
out
(1)
AL1AL2AL3AL4Analog
(1)
2P)
1000
kWh per
pulse
0.001
…1000
kWh/
kVARh
per
xxxx
kWh/
kVARh
per
pulse
Out 1Variable Variable Variable Variable Hi.E
pulse
(min)
9.99k
1.0…9
999
+/- tot/
PAr
+/- tot/
PAr
on/oFFSet 1Set 1Set 1Set 10.0…
on/oFF(measur
ement)
(measur
ement)
(measur
ement)
(measur
ement)
‘dmd’
(1)
1
(2)
9999k
(3)
0.0…
100.0%
Analog2
(1)
(2)
Hi.E
0.0…
9999k
(3)
Hi.A
0.0…
100.0%
).
COM
port
Add XXX XXXdAtE
1…247 XXXtiME
bdrXXX
9.6/
19.2/
38.4/
115.2
IP
(1)
Address
XX•XX•X
X XX:XX
(Realtime
clock)
XXX
.
(1) If ap propriate option is selected.
(2) Hi.E corresponds to the configured Max Input for the analog output.
(3) Hi.A corresponds to the configured Max Output for the analog output.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201615
Chapter 1PowerMonitor 500 Unit Overview
PowerMonitor 500
Row 1
Row 2
Row 3
Row 4
Row 5
PowerMonitor 500
Row 5
Row 4
Row 3
Row 2
Row 1
Figure 3 and 4 are examples of how the information pages are displayed.
Figure 3 - Information Page 2
Figure 4 - Information Page 15
16Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Installation and Wiring
96.00 mm
(3.78 in.)
96.00 mm
(3.78 in.)
93.00 mm
(3.66 in.)
20.20 mm
(0.80 in.)
29.70 mm
(1.17 in.)
89.97 mm
(3.54 in.)
91.00 mm
(3.58 in.)
62.99 mm
(2.48 in.)
89.49 mm
(3.52 in.)
62.99 mm
(2.48 in.)
89.49 mm
(3.52 in.)
16.00 mm
(0.63 in.)
20.00 mm
(0.79 in.)
Digital and Analog Output Modules
Serial and Ethernet Communication Modules
Chapter 2
Installation
This section shows the dimensions of the unit for installation in a panel.
Figure 5 - Base Unit Dimensions
Figure 6 - Panel Cut-out
Figure 7 - Factory-installed Optional Modules
Rockwell Automation Publication 1420-UM001E-EN-P - March 201617
Chapter 2Installation and Wiring
Power Supply
Figure 8 - Installation in Panel
Figure 9 - Rear View of Unit Showing Wiring Terminals
18Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Installation and WiringChapter 2
Wiring Diagrams
The PowerMonitor™ 500 unit can monitor various three-phase, single-phase, and
split-phase circuits. Select the voltage connections, current wiring, and system
metering mode to match the configuration of the circuit being monitored.
Ta b l e 4
provides a key for you to select the proper wiring diagrams and system
metering modes.
Table 4 - Wiring Diagram Explanation
Circuit typeNo. of CTs No. of PTs Wiring DiagramSystem
3-phase, 4-wire Wye Unbalanced load3-Figure 1 2
33
3-phase, 2-wire Wye Balanced load1-Fig ure 113P.2
11
3-phase, 3-wire Delta Unbalanced load3-Fig ure 13
2-
Open Delta Unbalanced load32Figure 13
22
Open Delta Balanced load12Figure 143P.1
3-phase, Single CT Balanced load1-Fig ure 14
13
Split-phase2-Fi gure 152P
22
Single phase1-Fi gure 16
11
Configuration
3P.n
3P
3P
3P.1
1P
The wiring diagrams in this manual are drawn with U.S. (NEMA) conventions.
For convenience, a connection diagram is shown in IEC style on the left and in its
corresponding NEMA style (used in the U.S.) on the right.
Figure 10 - Wiring Diagram Interpretation
Rockwell Automation Publication 1420-UM001E-EN-P - March 201619
Chapter 2Installation and Wiring
IMPORTANT
Line
L1N
Fuse
PT 1
(VT1)
Load
Ground
Shor ti ng
terminal block
S1
I1
Ground
CT
1
L2
L3
L1
S2
PM 500
3-CT and 3-PT/VT Connec tions
S1
I2
CT
2
S2
S1
I3
CT
3
S2
Fuse
PT 2
(VT2)
L2
Fuse
PT 3
(VT3)
L3
N
Line
L1N
Fuse
Load
Ground
Shorting
terminal block
S1
I1
CT
1
L2
L3
L1
S2
PM 500
3-CT Connection
S1
I2
CT
2
S2
S1
I3
CT
3
S2
Fuse
L2
Fuse
L3
N
Meter Configuration: System = 3P.n
These diagrams are simplified. Wiring of the power monitor must comply with
all applicable codes, standards, and regulations. Protect voltage and control
power wiring with suitable overcurrent protection. Connect current transformer
(CT) secondary wiring through a suitable shorting terminal block.
In these diagrams, ‘balanced load’ configurations permit 3-phase
measurement by using only one phase connection. Unbalance in the measured
circuit affects the accuracy of the measurements.
Figure 11 - 3-phase, 2-wire Wye, Balanced Load
Meter Configuration: System = 3P.2
Line
L2
L1N
L3
CT
1
Load
Fuse
Shorting
terminal block
Ground
1-CT Connection
PM 500PM 500
L1
N
S1
I1
S2
Line
L2
L1N
L3
Fuse
Shorting
terminal block
CT
1
Load
1-CT and 1-PT/VT Connections
Groun d
(VT)
PT
L1
N
Groun d
S1
I1
S2
Figure 12 - 3-phase, 4-wire Wye, Unbalanced Load
20Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Rockwell Automation Publication 1420-UM001E-EN-P - March 201621
Chapter 2Installation and Wiring
Line
L1N
Fuse
PT 1
(VT1)
Groun d
L2
L1
PM 500
2-CT and 2-PT/VT Conn ection s
Fuse
PT 2
(VT2)
L2
Line
L1N
Fuse
Load
Groun d
Shorting
terminal block
S1
I1
CT
1
L2
L1
S2
PM 500
2-CT Connection
S1
I2
CT
2
S2
Fuse
L2
N
Load
Groun d
Shorting
terminal block
S1
I1
CT
1
S2
S1
I2
CT
2
S2
N
Meter Configuration: System = 2P
Line
L1N
Fuse
PT
(VT)
Load
Groun d
Shorting
terminal block
L1
N
S1
S2
I1
Groun d
CT
Line
L1N
Fuse
Load
Groun d
Shorting
terminal block
L1
N
S1
S2
I1
CT
PM 500PM 500
1-CT Connection
1-CT and 1-PT/VT Connection s
Meter Configuration: System = 1P
Figure 15 - Split-phase
Figure 16 - Single-phase
Supply Power
Connect the PowerMonitor™ 500 unit to a source of supply power through userprovided disconnecting means, such as a switch or circuit breaker close to the
power monitor. Provide overcurrent protection that is sized to protect the wiring.
Apply supply power only after all wiring connections are made to the unit.
Figure 17 - Supply Power
120/240V AC 50/60Hz, or 120/240V DC
22Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
F = 250V (T) 630 mA
PowerMonitor 500
+--
1
2
+
Factory Installed Option Wiring
1432
Out 1Out 2
Out 1
Out 2
Analog 20 mA DC
RS-485 PortRS-232 Port
6
7
8
1
2
3
4
6
7
8
1
2
3
4
6
7
8
1
2
3
4
Mandatory
Termination
T = Termination
A- = Transmit minus
B+ = Transmit plus
IMPORTANT
Figure 18 - Pulse (digital) Outputs (P option)
Installation and WiringChapter 2
2143
Out 1Out 2
Out 1Out 2
Figure 19 - Analog Outputs (A option)
Figure 20 - Serial RS-485 and RS-232 Communication Wiring (485 option)
6587
Additional devices that are provided with RS-485 are connected in parallel. The
termination of the serial output is implemented only on the last instrument of
the network, with a jumper between (B+) and (T). The jumper applies an
internal termination resistance between (A-) and (B+). The RS-232 and
RS-485 communication ports cannot be connected and used simultaneously.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201623
Chapter 2Installation and Wiring
Ethernet Network SwitchUplink to LAN
PowerMonitor 500PowerMonitor 500
Figure 21 - Ethernet Communication (ENT option)
The PowerMonitor 500 unit connects to industry-standard Ethernet hubs and
switches by using standard CAT-5 UTP (unshielded twisted-pair) cables with
RJ45 connectors. Ta b l e 5
Table 5 - Ethernet Network Connections
TerminalSignal
1TX+
2TX-
3RX+
4
5
6RX-
7
8
shows the cable and connector pin assignments.
24Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Unit Configuration
Chapter 3
Configure with the Display
The PowerMonitor™ 500 unit provides menu-based configuration
(programming) by using its front panel display. The programming menus let you
select parameters to edit, select digits within parameters, and increase or decrease
the value of each digit.
Place the unit in Programming mode by pressing Program/select (8) for about
2 seconds. The front panel displays the PASSWORD? menu page 0 in Editing
mode. Enter the correct password by using the Up and Down arrows (the default
password is 0) and press Program/select. The front panel then displays the
CHANGE PAS menu page 10.
See the programming flowchart that begins on page 28
organization of programming menus and submenus. Each page is identified with
a number, which is displayed in the top right corner. Menu page numbers end in
zero, while submenu pages end in 1 through 9. For example, the Change
Password page is menu 10. Likewise, the Dmd page is menu 80, and the demand
interval Time page is menu 82.
While you are programming the power monitor, the display items and control
buttons function one way when you are navigating between menu or submenu
pages, and another way when you are editing a menu page.
for a view of the
Rockwell Automation Publication 1420-UM001E-EN-P - March 201625
Chapter 3Unit Configuration
Figure 22 - Front Panel Display
1
2
3
4
5
6
7
8
Table 6 - Front Panel Display Descriptions
Display Item DescriptionNavigating MenusEditing a Menu
2Programming menu pageIdentifies the current programming menu page. See the programming flowchart that begins on page 28
3Editing mode indicatorDoes not appear.Indicates the parameter being edited.
4CursorDoes not appear.Appears beneath the digit currently being edited.
5Permitted rangeDisplays the permitted range of values for the selected parameter.
6Exit button• When in a menu page, exits Programming mode
without saving changes. Program/select button
confirms exit.
• When in a submenu page, exits to menu page.
7Up buttonSelects the next higher-numbered menu or
submenu page.
Down buttonSelects the next lower-numbered menu of submenu
page.
8 Program/select button• Press and hold for 2 seconds to enter the Program
mode.
• Selects a menu page for editing.
• When in a menu page with submenus, displays
the first submenu page.
• After pressing the Exit button, confirms exit from
Programming mode without saving changes.
• From End menu page 260, saves new
configuration and exits Programming mode.
• Moves the cursor one digit to the left.
• When the leftmost digit is selected, dP is
indicated and you can change the decimal point
and multiplier (see Edit Decimal Point and
Multiplier on page 27).
• When held for at least 2 seconds, cancels the edit
and restores the previous value of the selected
parameter.
• Increments the value of the digit indicated by the
cursor.
• When dP is indicated, increments the decimal
point and multiplier.
• Decrements the value of the digit indicated by
the cursor.
• When dP is indicated, decrements the decimal
point and multiplier.
Stores the new value of the selected parameter, but
does not save the new configuration to the power
monitor.
.
26Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Unit ConfigurationChapter 3
IMPORTANT
TIP
To save programming changes, navigate to the End menu page 260 and press
Program/select. To exit the Programming mode without saving any changes,
press Exit and confirm by pressing Program/select. If no buttons have been
pressed for 2 minutes, the power monitor exits Programming mode without
saving any changes.
You can make programming changes by using the PowerMonitor 500 software.
Edit Decimal Point and Multiplier
When the cursor is beneath the last digit on the left, pressing Exit (6) lets you
change the decimal point and the multiplier (9) (k or M). The blinking ‘dP’
(decimal point) text (10) indicates this capability.
9
10
To modify the decimal point position and the multiplier, use the Up and Down
arrow (7) to select the desired value.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201627
Chapter 3Unit Configuration
Configuration Flowchart
The following flowchart shows the configuration menus and submenus that are
accessed through the display. To navigate through the menu pages, use the up and
down arrows. To enter Edit mode or to access a submenu, press the Program/
select button. The menu pages available depend on your module type.
• 0 PASSWORD?: enter password by using up and
down arrows to change the digit. Use the Exit button
to move the cursor between digits. Press the
Program/select button to confirm password. The
default password is 0.
• 10 CHANGE PAS: this function lets you modif y the
PASS value with a new value (from 0…9999).
• 20 BACKLIGHT: adjusts backlight time from
0…255 minutes (0 = always on).
• 50 SYSTEM: this function lets you select the type of
electrical system.
See pages 19
diagrams that correspond to the system type
designations, such as, 3P and 3P.n.
• 60 CT RATIO: this function lets you select the value
of the CT ratio (primary/secondary ratio of the
current transformer being used). Example: if the CT
primary (current transformer) has a current of 300 A
and the secondary a current of 5 A, the CT ratio
corresponds to 60 (300 divided by 5).
…22 for descriptions and wiring
• 70 PT RATIO: this function lets you select the value
of the PT (VT) ratio (primary/secondary ratio of the
potential/voltage transformer being used). Example:
if the primary of the connected PT is 20 kV and the
secondary is 100V, then the PT ratio corresponds to
200 (20,000 divided by 100). If the voltage level is
such that PTs are not required and are not in place,
configure the PT ratio to 1.0.
28Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Unit ConfigurationChapter 3
Where:
Pmax is the maximum power
Pc is the contractual power
t1 is the selected time period for the calculation of the AVG/DMD value
Fixed
Slide
• 80 DMD: This function lets you select the
calculation method of the DMD/AVG value of the
selected variable.
– 81 TYPE: select the type of Calculation mode to be
used for the DMD/AVG calculation.
FIXED: The instrument calculates the
AVG/DMD value of the measured variable over the
selected interval, updates the AVG/DMD value at
the end of the interval, then resets and starts a new
calculation.
SLIDE: When first configured, the instrument
calculates the AVG/DMD value and updates its
value at the beginning after the first selected
interval. After the first interval, the instrument
calculates the AVG/DMD value every minute.
After the calculation, the instrument generates a
window whose width is the selected interval and
that moves forward every minute.
– 82 TIME: select the time interval for the DMD/
AVG calculation. Default is 15 minutes.
– 83 SYNC: select the Synchronization mode. That
mode is the method that controls the calculation
method of the average/demand according to the
selected time.
• 110 FILTER: The digital filter makes it possible to
stabilize the display of fluctuating measurements.
See Digital Filtering Operation
on page 32.
– 111 FILTER S: set the operating range (span) of the
digital filter. The value is expressed as a % (filter to
0.0 means filter excluded).
– 112 FILTER CO: set the filtering coefficient of the
instantaneous measures. By increasing the value, also
the stability and the settling time of the measures are
increased.
IMPORTANT: Some specific menus display only if
the relevant modules are installed.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201629
list of available
variables
list of available
variables
Same as DIG OUT 1
Same as VIRT ALARM 1
Same as VIRT ALARM 1
list of available
variables
-IP ADDRESS
-SUBNET
-GATEWAY
-TCP IP PRT
-ACD
ETHERNET
www.xxx.yyy.zzz
www.xxx.yyy.zzz
www.xxx.yyy.zzz
1…9999 (default = 502)
yes/no (default = no)
Same as VIRT ALARM 1
Chapter 3Unit Configuration
• 120 RS232-485: User settings for the RS-232 and
RS-485 serial communication ports.
• 130 ETHERNET: User settings for the Ethernet
communication port.
• 150 VIRT AL 1: This virtual alarm function lets you
set the alarm parameters.
– 151 ENABLE: enable (YES) or disable (NO) the
alarm.
– 152 VARIABLES: set the variable to be linked to
the alarm.
– 153 SET 1: set the on alarm set point of the variable.
– 154 SET 2: set the off alarm set point of the variable.
– 155 ON DELAY: set a delay on activation of the
alarm.
• 190 DIG OUT 1: This function lets you link a virtual
alarm to the digital relay output and to its working
parameters.
– 191 FUNCTION:
Alarm - the digital output is enabled when the
associated alarm status occurs.
Pulse - the measured energy is retransmitted by the
digital output with pulses.
Remote - the digital output can be controlled
through a command that is sent through the serial
communication port.
– 192 AL LINK: select the virtual alarm that it has to
be associated.
– 193 AL STATUS: ‘ND’ (normally de-energized
relay) or ‘NE’ (normally energized relay).
– 195 PULSE WEIG: selects the pulse weight (kWh
per pulse).
– 196 OUT TEST: Tests the digital output. YES
enables the test, No disables the test.
– 197 POWER TEST: sets a simulated power value
(kW) to test the energy pulse output. The function
remains active until you exit the programming
menu.
30Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Save the set
parameters and come
back to the measuring
mode.
List of available
variables
Same as AN OUT 1
Unit ConfigurationChapter 3
• 210 AN OUT 1: User programming of the analog
outputs (0…20 mA).
– 211 VARIABLES: selects the variable to be
retransmitted with the analog output.
– 212 MIN OUTPUT: sets the value that is expressed
as % of the output range (0…20 mA) that
corresponds to the minimum measured value.
– 213 MAX OUTPUT: selects the value that is
expressed as % of the output range (0…20 mA) that
corresponds to the maximum measured value.
– 214 MIN INPUT: minimum value of the variable
input range, corresponds to the ‘MIN OUTPUT’
value of the analog output.
– 215 MAX INPUT: maximum value of the variable
input range corresponds to the ‘MAX OUTPUT’
value of the analog output.
• 230 METERS: reset the ENERGY METERS.
Choose among the following:
– 231 TOTAL, 222 PARTIAL: resets all energy
meters, total and partial.
– 233 TOTAL +: resets the total meters of imported
energy.
– 234 TOTAL -: resets the total meters of exported
energy.
– 235 PARTIAL +: resets the partial meters of
imported energy.
– 236 PARTIAL -: resets the partial meters of
exported energy.
• 240 RESET: Resets the MAX or dmd stored values.
• 250 CLOCK:
– 251 FORMAT: UE, sets the European time format
as 24h (00:00) or sets the time format as 12h (12:00
AM/PM).
– 252 YEAR: sets the current year.
– 253 MONTH: sets the current month.
– 254 DAY: sets the current day.
– 255 HOUR: sets the current hour.
– 256 MINUTE: sets the current minute.
– 257 SECOND: sets the current second.
• 260 END:
– To save programming changes, press Program/select.
– To exit the Programming mode without saving any
changes, press Exit and confirm by pressing
Program/select.
– If no buttons are pressed for two minutes, the unit
exits Programming mode without saving changes.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201631
Chapter 3Unit Configuration
Digital Filtering Operation
Digital filtering smooths out the display of fluctuating values. The parameter
FILTER S defines the operating range of the filter. This operating range is
represented as a yellow band (each small square is one digit). While the measured
value (red curve in Figure 23
value exceeds the operating range, the filter is deactivated and a new band is active
around the new value. The range of fluctuation (in digits) is a good starting value
for such parameters.
The parameter FILTER CO represents the filtering coefficient. The higher the
FILTER CO, the smoother the curve of the displayed values (black in Figure 23
There is not a theoretical rule to define this parameter, it is set in the field. One
rule is to start with the value of the FILTER S coefficient and then increase
FILTER CO until the desired stability is reached.
The digital filter affects the values retransmitted both via serial communication
and analog output.
Figure 23 - Digital Filter
) is within this band, the filter is active. Once the
No lter action
).
Digital Fluctuation
Digital Filter Programming Examples
This section gives digital filter programming examples.
Example 1
This example describes how to stabilize the displayed value of the VL-N variable,
which fluctuates between 222V and 228V. The parameters of the digital filter
have to be programmed as follows.
FILTER S: The variable fluctuates within the mean value whose amplitude is
equal to ±0.75% of the full scale rated value of the variable itself, which is
obtained by the following calculation:
(228 - 222)/ 2= ±3V, then ±3*100/400V= ±0.75%
where 400V is the line-to-neutral rated value of a 1420-V2 unit input
32Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Unit ConfigurationChapter 3
The FILTER S parameter, which represents the action range of the digital filter, is
programmed to a value that must be slightly higher than the percentage
amplitude of the fluctuation, for example, 1.0%.
FILTER CO: if the new value that is measured by the instrument is within the
action range of the filter, the new displayed value is obtained by adding
algebraically the previous value to the variation divided by the filtering
coefficient. As a consequence, a value higher than this coefficient implies a longer
settling time and therefore better stability. You generally obtain the best result by
setting the filtering coefficient to a value equal to at least 10 times the range
parameter value.
In the following example, 1.0*10=10, the stability of the filtering coefficient can
be improved by increasing the filtering coefficient; the allowed values are
included within 1 and 255.
Example 2
This example describes how to stabilize the value of the displayed System Real
Power (W), which fluctuates 300...320 kW. In this example, the load is
connected to the instrument with a 300/5 A CT and a direct measure of the
voltage.
The parameters of the digital filter must be programmed as follows.
FILTER S: the variable fluctuates within the mean value whose amplitude is
equal to ±2.78% of the full scale rated value of this variable. This value is
obtained by the following calculation:
(320 - 300)/ 2= ±10 kW,
then ±10*100/360 kW= ±2.78%,
where 360 kW is the rated value of the System Real Power of a 1420-V2
unit input, at the CT and VT ratios and obtained with the following
formula:
VLN * VT * IN * CT * 3
Where:
VLN = rated input voltage (400V for the V1 input)
VT= primary/secondary ratio of the voltage transformer being used
IN = rated current (5 A)
CT = primary/secondary ratio of the voltage transformer being used (in
this example 400*1*5*60*3=360 kW).
The FILTER S parameter, which represents the digital filtering coefficient action
range, is programmed to a value that must be slightly higher than the percentage
of the fluctuation: for example 3.0%.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201633
Chapter 3Unit Configuration
FILTER CO: if the new value that is acquired by the unit is within the filtering
action range, the new displayed value is obtained by adding algebraically the
previous value to the variation divided by the filtering coefficient. As a
consequence, a value higher than this coefficient implies a higher settling time
and therefore better stability. Therefore, the best result is obtained by setting the
filtering coefficient to a value equal to at least 10 times the value of the range
parameters. In the example, 3.0*10=30. To improve the stability, you can increase
the filtering coefficient; the admitted values are included within
1 and 255.
Example 3
It is necessary to stabilize the value of the displayed variable A L1
(phase current 1), which fluctuates in the range 470 A and 486 A.
To be able to manage the alarm function and activation and deactivation of the
relay, this value is not to be subject to continuous fluctuations. In this example,
we have considered using a 500/5 A CT. Program the parameters of the digital
filter as follows:
FILTER S: the variable fluctuates within the mean value whose amplitude is
equal to ±1.60% of the full scale rated value of this variable (obtained with the
calculation:
(486 - 470)/ 2= ±8 A, then ±8*100/500 A= ±1.60%
where 500 A is the value referred to the primary of the transformer being
used).
The FILTER S parameter, which represents the action range of the digital filter, is
programmed to a value slightly higher than the percentage amplitude of the
fluctuation, for example 2.0%.
FILTER CO: if the new value that is acquired by the instrument is within the
filtering action range, the new displayed value is calculated algebraically adding to
the previous value the variation divided by the filtering coefficient. As a
consequence, a higher value of this coefficient implies a higher settling time and
therefore better stability. Therefore, the best result is obtained setting the filtering
coefficient at a value equal to at least 10 times the value of the range parameter. In
the example, 2.0*10=20. To improve the stability, you can increase the filtering
coefficient; the admitted values are within 1 and 255.
34Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Unit ConfigurationChapter 3
Analog Output Configuration
Examples
These examples apply to units with catalog numbers 1420-V1A and 1420-V2A.
Example 1: Power value retransmission with a 0…20 mA analog output.
This example describes how to retransmit measured power up to
100 kW with a 4…20 mA signal. Program the unit as follows:
• VAR IA BL E: W
• MIN OUT: 20.0% means 4 mA. The calculation that is used is the
• MAX OUT: 100.0% means 20 mA. The calculation is the following:
(100*maximum output)/full scale output = 100*20 mA/20 mA= 100
• MIN INPUT: 0.0 k; the multiplier k, M, G can be selected on the unit
according to the chosen VT and CT values
• MAX INPUT: 100.0 k; the k, M, G multipliers can be selected on the unit
according to the selected VT and CT values
Example 2: Retransmission of the power factor (PF) value with the
0…20 mA analog output.
In this example, the unit is configured to retransmit the whole range of the
allowed values for the PF with a signal from 0…20 mA. The value of the PF
variable can vary between C0.001 and L0.000 (for each phase); these values,
when retransmitted, correspond to 0 mA and 20 mA. When the PF value is equal
to 1, the analog output value corresponds to the middle of the scale,
which is 10 mA. Program the instrument as follows:
• VARIABLE: PF L1 (or L2 or L3 or PF
• MIN OUT: 0.0%
• MAX OUT: 100.0%
• MIN INPUT: C0.001 (the C symbol shows a CAPACITIVE value)
• MAX INPUT: L0.001 (the L symbol shows an INDUCTIVE value).
L0.001 has been chosen as minimum value to be set to avoid undesirable
rapid changes of the outputs
Σ (system real power)
Σ)
Rockwell Automation Publication 1420-UM001E-EN-P - March 201635
Chapter 3Unit Configuration
IMPORTANT
300 kW
295 kW
Alarm Configuration
Example
These examples apply to units with catalog numbers 1420-V1P and 1420-V2P.
This example describes an alarm when a measured real power value exceeds a
programmed threshold. For example, when 300 kW are exceeded, the alarm
occurs and the load that is controlled by the relay output is disconnected.
The PowerMonitor 500 unit is not intended to be applied as a protective device.
An ‘UP’ alarm is selected. The recommended programming is the following:
• ENABLE: YES
• VAR IA BLE S: W sys tem ( W·)
• SET POINT 1: 300 kW
• SET POINT 2: 295 kW
• ON DELAY: set the desired number of seconds, for example 5 seconds
To program a ‘DOWN’ alarm, configure SET POINT 1 to be a lower value than
SET POINT 2.
36Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Communication
TIP
IMPORTANT
Chapter 4
EtherNet/IP Communication
EtherNet/IP communication is supported in PowerMonitor™ 500 units that are
ordered with optional Ethernet communication. Communication parameters in
the power monitor must be configured. See Unit Configuration
Ethernet communication port supports 100 or 10 Mbps data rate, half-duplex, or
full-duplex.
The Ethernet hardware address (MAC ID) is printed on the unit label.
The PowerMonitor 500 unit provides nine Assembly Instances that contain realtime, maximum, demand, energy, and status data that can be read by a client by
using implicit messaging (Class 1) or Explicit Messaging (Class 3 or UCMM).
Appendix A
power monitor returns EtherNet/IP data as little-endian, the same byte order
that is used in the Logix family of programmable controllers.
Figure 24 - Byte Order Example
lists the Assembly Instances, sizes, data types, and other details. The
• CIP Generic Assembly Object (Class 04), Get_Attribute_Single (Service
Code 0x0E) for Attribute 4 (size in bytes)
The power monitor does not support configuration or commands on
EtherNet/IP network. To write the configuration of command data, refer to the
section on Modbus Communication
See Appendix C
implementation in the PowerMonitor 500 unit.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201637
for additional information on the EtherNet/IP communication
on page 43.
Chapter 4Communication
Electronic Data Sheet (EDS)
The EDS file is used to convey device configuration data that is provided by the
manufacturer. You can obtain EDS files for the PowerMonitor 500 unit by
downloading the file from the following website:
You can install EDS files on your computer by using the EDS Hardware
Installation Tool that comes with RSLinx® Classic software,
RSNetWorx™ for EtherNet/IP software, or other tools.
Explicit Messaging - Message Setup with CIP Generic
The following example shows how to configure your message instruction to read
from a data table in the power monitor by using a CIP Generic message type for
the Studio 5000 Logix Designer® application. This setup applies to
ControlLogix® and CompactLogix™ programmable logic controllers. The CIP
Generic message type does not support single element reads or writes. In this
example, we read the Real-time Metering Values (Voltage and Current) data table
from the power monitor.
38Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
CommunicationChapter 4
We assume that you are familiar with basic message programming in a Logix
controller. Once you configure the logic, message tag, destination tag, and
message instruction, follow these steps to configure the message. This example
uses a CompactLogix™ controller, revision 20.
1. Choose the appropriate parameters in the Message Configuration window.
Parameter Choice
Message Type Choose message type CIP Generic.
Service Type Read: Select service type Get Attribute Single (E hex)
Instance See Appendix A
monitor Real-time Metering Values (Voltage and Current) data table is instance 101 (decimal).
Class 4 hex
Attribute 3 hex
Destination Get Attribute Single - This element is the first element of the controller tag that stores the data
being read. The tag is an array of the applicable data type the same length as the Assembly
Instance; in this example, 12 REAL elements.
Source Element Not applicable to a Read
Source LengthNot applicable to a Read
for the CIP Instance of the data table to read. In this example, the power
Rockwell Automation Publication 1420-UM001E-EN-P - March 201639
Chapter 4Communication
2. Click the Communication tab and enter the path and method.
3. Click OK to complete message setup.
Path Method
<Ethernet Module, Port (always 2 for Ethernet), Power Monitor IP Address>CIP
Implicit Messaging - Generic Ethernet Module Input Data Connection
The PowerMonitor 500 unit with EtherNet/IP communication supports Class 1
connections to its nine Assembly Instances. To configure a Class 1 connection to
a selected Assembly Instance with a Logix controller, follow these steps.
1. Open the controller program offline in the Logix Designer application (or
online in Program mode if you are using a ControlLogix® controller).
2. In the I/O configuration tree, right-click the Ethernet communication
module (for example, 1756-EN2T), and choose New Module.
3. From the Communication pull-down menu, choose ETHERNETMODULE Generic Ethernet Module.
40Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
CommunicationChapter 4
4. Enter the setup parameters as listed in this dialog box and explained in
Ta b l e 7
Table 7 - Module Properties Setup Parameters
ItemChoices
General Tab
NameRequired; must be IEC 1131-3 compliant
DescriptionOptional
Comm FormatDepends on selected Assembly Instance
Address/Host NameIP AddressIP address of target PowerMonitor 500 unit
Input (select one)10020Input Data - SINTProduct Information
10112Input Data - REALReal-time Voltage and Current
10218Input Data - REALReal-time Power, PF, Frequency
10312Input Data - REALMax Voltage and Current
10417Input Data - REALMax Power, PF, Frequency
10512Input Data - REALDmd Voltage and Current
10617Input Data - REALDmd Power, PF, Frequency
10718Input Data - REALEnergy Meters
1082Input Data - INTAlarm and Output Status
Output98N/AInst. 98 used for Input Only connection
99N/AInst. 99 used for Listen Only connection
Configuration30Instance 3 is a placeholder only
Connection Tab
RPI100 ms or greater
Inhibit ModuleOptional - unchecked by default
Major FaultOptional - unchecked by default
Unicast ConnectionOptional - checked by default
.
(1)
(1)
(1) Use the Listen Only connection only when an Input Only connection exists with another controller.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201641
Chapter 4Communication
5. When finished, click OK to save the new module.
The module updates its input tag <Name>.I.Data at the Requested Packet
Interval (RPI).
You can use additional programming to show the data in another way. Instances
101…107 show data in the REAL, or floating point, format. However, Instance
100 combines ASCII characters with numeric byte (SINT) values.
This program displays the contents of Instance 100 in a more human-readable
fashion:
• The XIC instruction on tag ‘bool_Convert_i100’ enables the conversion.
• The first CPS instruction copies the first 6 bytes of the module input data
tag.
• The MOV instruction sets the serial number string length to 13.
• The last CPS instruction copies the serial number from the module input
data tag that starts at element (byte) 6.
42Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
CommunicationChapter 4
IMPORTANT
The destinations of the CPS instructions are in a tag with a user-defined data
type.
The destination tag shows the data in this way.
Modbus Communication
For a complete description of the MODBUS protocol refer to the following
documents that can be downloaded from http://www.modbus.org
• Modbus_Application_Protocol_ V1_1a
• Modbus_Messaging_Implementation_Guide_V1_0a
:
Modbus Functions Supported
Modbus RTU is supported in PowerMonitor 500 units that are ordered with
optional RS-485/RS-232 communication. In addition, Modbus TCP/IP is
supported in units that are ordered with optional Ethernet communication.
Communication parameters in the power monitor must be configured. See the
Unit Configuration
section of this manual.
We recommend that you use Modbus TCP/IP to configure or write to the
PowerMonitor 500 unit and that you use Ethernet/IP to read the
PowerMonitor 500 unit.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201643
Chapter 4Communication
The PowerMonitor 500 unit supports the following Modbus functions:
• 0x03 - Read n Holding Registers
• 0x04 - Read n Input Register
• 0x06 - Write one Holding Register
• 0x10 - Write multiple registers
• 0x08 - Diagnostic (with subfunction code 0x00)
• 0x42 - Read n Special Registers (vendor specific)
• Broadcast mode (write command on address 00h)
In this section, Modbus addresses are indicated in two ways. The ‘Modbus
address’ is expressed as the 6-digit input register address (example: 300123), used
with Modbus function code 0x04. The ‘Physical address’ is the hexadecimal
representation of the word address that is included in the communication frame.
Modbus function 0x04 can be used with the Modbus address by substituting a 4
for the first digit (example: 400123). With that distinction, functions 0x03 and
0x04 return the same data.
To avoid errors due to signal reflections or line coupling, a termination resistor
must be connected at the RS-485 ports of the master station and of the furthest
power monitor from the master station. In the PowerMonitor 500, you can
implement a jumper between (B+) and (T) to apply the required termination
resistance between (A-) and (B+) internally. Termination on both ends is
necessary even in case of point-to-point connection, with short distances.
The GND connection is optional if a shielded cable is used. For connections
longer than 1000 m (3280 ft), a line amplifier is necessary.
Data Types Supported
FormatDescriptionBitsRange
INTInteger16-32768…32767
UNITUnsigned Integer160… 65535
31
DINTDouble integer32-2
UDINTUnsigned Double Integer320…2
ULINTUnsigned long Integer640…2
REALSingle-precision Floating Point32-(1+[1-2
… 2
32-1
64-1
31-1
-23
])x2
127…2128
The IEEE754 representation of a 32-bit Floating Point number as an Integer is
defined as follows.
Bits
31 30…23 22…0
Sign Exponent Mantissa
Va l u e = (-1)
44Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Configuration - Analog Outputs: Read and WriteXX304609-3259
Analog Output Configuration ParametersXXVaries-1659
Configuration - Digital Relay Outputs: Read and
Write
Commands: Write-onlyX312369-4561
Alarm and Output StatusX316385108263
X300001
X3001051021851
X3003611041753
X301281107956
XX304865-1260
Address
(1)
CIP Assy. Instance ID
(decimal)
1001049
No. of Elements See Page
(1) To obtain the physical address, subtract 300001 from the Modbus address, and convert the result to hexadecimal. Example: Physical address 0x000B corresponds to Modbus address
300012.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201647
Appendix APowerMonitor 500 Unit Data Tables
- W = Exported real power
+ W = Imported real power
+ VAR = Imported reactive
power
- VAR = Exported reactive
power
Geometric Representation of
Power and Power Factor
Power and power factor values are signed values in accordance with EN 62053
and as indicated in the diagram. Inductive or lagging power factor (Quadrant I
and III) is indicated by a positive power factor value. Capacitive or leading power
factor (Quadrant II and IV) is indicated by a negative power factor value. The
PowerMonitor™ 500 unit indicates the quadrant by using +/- L or +/- C as
shown in Figure 25
Figure 25 - Power and Power Factor Diagram
+VAR
-VAR
PF > 0, ‘-L’PF < 0, ‘C’
.
-W+W
PF > 0, ‘L’PF < 0, ‘-C’
Q
P
48Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 Unit Data TablesAppendix A
IMPORTANT
Data Tables
These tables detail each specific data table and its associated elements, such as
address, length, description, and format.
In the data tables, the symbol is used to indicate 3-phase or system values.
The context determines whether the symbol indicates average (for example,
voltage) or total (for example, power) values.
Product Information
Table 9 - Table Properties
CIP Assembly Instance100
No. of Elements10
Length in Words10
Data TypeUINT
Data AccessRead Only
Table 10 - Product Information Data Table
ElementModbus
Address
1300001 1 Base firmware revision UINTMSB: ASCII code for model (A = V2, B = V1)
2300002 1 EtherNet/IP module firmware revisionUINTMSB: ASCII code for model
33000031Analog output module firmware revision (if exists)UINTMSB: ASCII code for model
43000331Letter 1 (from SX)
53000341Letter 3 (from SX)
63000351Letter 5 (from SX)
73000361Letter 7 (from SX)
83000371Letter 9 (from SX)
93000381Letter 11 (from SX)
103000391Letter 13 (from SX) UINTMSB: ASCII code
Length
(words)
Description / UnitsData
Form at
UINTMSB: ASCII code
Letter 2 (from SX)
UINTMSB: ASCII code
Letter 4 (from SX)
UINTMSB: ASCII code
Letter 6 (from SX)
UINTMSB: ASCII code
Letter 8 (from SX)
UINTMSB: ASCII code
Letter 10 (from SX)
UINTMSB: ASCII code
Letter 12 (from SX)
Notes
LSB: numeric number for revision
LSB: numeric number for revision
LSB: numeric number for revision
LSB: ASCII code
LSB: ASCII code
LSB: ASCII code
LSB: ASCII code
LSB: ASCII code
LSB: ASCII code
Rockwell Automation Publication 1420-UM001E-EN-P - March 201649
Appendix APowerMonitor 500 Unit Data Tables
Real-time Metering Values (voltage and current)
Table 11 - Table Properties
CIP Assembly Instance101
No. of Elements12
Length in Words24
Data TypeREAL
Data AccessRead Only
Table 12 - Real-time Metering Values (voltage and current) Data Table
ElementModbus
Address
03000812V L1-NREAL
1300083 2 V L2-NREAL
23000852V L3-NREAL
3300087 2 V L-N REAL
4300089 2 V L1-L2 REAL
53000912V L2-L3REAL
6300093 2V L3-L1REAL
7300095 2 V L-L REAL
83000972 A L1 REAL
9300099 2A L2REAL
10300101 2 A L3REAL
113001032 A N REAL Calculated by instrument base
Length
(words)
Description / UnitsData FormatNotes
50Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
304098 1 Electrical system selection UINT Value =0: 1P (1-phase 2-wire) Value =1: 2P (2-phase 3-wire)
304099 1ReservedUINT
3041011 Backlight mode UINT The timing backlight is programmable from 0…255 minutes
304107 1 DMD - Calculation UINT Selection of the DMD calculation mode Value=0: Fixed Value=1:
304108 1DMD - Time interval UINTValue=0: 1 min Value=1: 5 min Value=2: 10 min Value=3: 15 min
3041101DMD - SynchronizationUINTSynchronization selection mode Value=0: OFF Value=1: Clock
304121 2 CT - Current transformer ratio REAL 1.0…9999.0
304123 2VT(PT) - Voltage transformer ratio REAL 1.0…9999.0
304127 2 Filter Span parameter REAL Value min = 0.0
304129 2 Filter Coefficient REAL Value min = 1.0
304177 16 Virtual Alarm AL1 (LED 1)Customized See the Tab le 27
304193 16 Virtual Alarm AL2 (LED 2) Base Alarm data structure
304209 16 Virtual Alarm AL3 (LED 3)
304225 16 Virtual Alarm AL4 (LED 4)
Length
(words)
Description / UnitsData FormatNotes
Value=2: 3P (3-phase 3-wire) Value=3: 3P2 (3-phase 2-wire) one
current and 1-phase (L1) to neutral voltage measurement)
Value=4: 3P1 (3-phase 4-wire one current and 3-phase to neutral
voltage measurements) Value=5: 3PN (default =3PN)
(0 = always ON)
Slide - only for W and VA
Value=4: 20 min Value=5: 30 min Value=6: 60 min
Value max = 100.0 (Disabled = 0.0)
Value max = 256.0
Rockwell Automation Publication 1420-UM001E-EN-P - March 201657
Appendix APowerMonitor 500 Unit Data Tables
Table 27 - Configuration - Alarms
Modbus
Address
Block address
+0
Block address
+1
Block address
+2
Block address
+3
Length
Description / UnitsData FormatNotes
(words)
1 Alarm N - Enabling UINT Value=1: alarm N enabled Value=0: alarm N disabled All other
values are considered as value=0
1Alarm N - Variable type to be linked
UINTSee the Connected Variable List (Tabl e 4 5)
to
1 Alarm N - Delay ON activation (s) UINT Value min=0 Value max=3600 If the set value exceeds the allowed
range, the instrument automatically sets the value to 0
2 Alarm N – Set point 1 REAL Value min = -9999M Value max = 9999M If the set value exceeds
the allowed range, the instrument automatically sets the value to
0.000
Block address
+5
2 Alarm N – Set point 2 REAL Value min = -9999M Value max = 9999M If the set value exceeds
the allowed range, the instrument automatically sets the value to
0.000
Block address
9Reserved
+7
Table 28 - Configuration - RS-485/RS-232 Communication
Modbus
Address
304356 1 Clock format UINT 0=24h/12h 1=AM-PM
304357 1 Clock daylight-saving UINT Value=0: NO Value=1: YES
304358 1 Clock calendar: Year
304359 1 Clock calendar: Month
304360 1Clock calendar: Day
304361 1 Clock: Hour
3043621 Clock: Minutes
304363 1Clock: Seconds
304364 1 Daylight-saving: month in which to
304365 1 Daylight-saving: Sunday in which to
304366 1Daylight-saving: hour in which to
304367 1 Daylight-saving: month in which to
304368 1 Daylight-saving: Sunday in which to
304369 1 Daylight-saving: hour in which to
304401 1 RS-485 instrument address
3044021 RS-485 baud rate selection
304403 1 RS-485 parity selection
Length
(words)
Description / UnitsData FormatNotes
(1)
(1)
(1)
(1)
(1)
(1)
UINT 2009…2099
UINT1…12
UINT 1…31
UINT 0…23
UINT0…59
UINT 0…59
UINT 1…12
increase the hour (+1H)
UINT 0…4 (0= last Sunday of the month)
increase the hour (+1H)
UINT 0…23 (24h format only)
increase the hour (+1H)
UINT 1…12
decrease the hour (-1H)
UINT 0…4 (0= last Sunday of the month)
decrease the hour (-1H)
UINT 0…23 (24h format only)
decrease the hour (-1H)
selection
(2)
(2)
UINT Value min = 1 Value max = 247 If the set value exceeds the allowed
range, the instrument automatically sets the value to 1
62Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Alarm and Output Status
IMPORTANT
Table 33 - Table Properties
CIP Assembly Instance108
No. of Elements2
Length in Words2
Data TypeINT
Data AccessRead Only
Table 34 - Alarm and Output Status: read-only Mode Data Table
PowerMonitor 500 Unit Data TablesAppendix A
ElementModbus
0316385 1 Virtual alarm UINT Bit value: 0 = OFF
1316386 1 Output (port) UINT Bit value
2 (see
Important)
Address
3163871HW modules configurationUINTBit value:
Length
(words)
Description / UnitsData FormatNotes
Bit value: 1 = ON
Bit position:
0: Virtual alarm 1
1: Virtual alarm 2
2: Virtual alarm 3
3: Virtual alarm 4
0 = OFF Bit value
1 = ON (Important: only if the port is not linked to the counter)
Bit position (LSB concept): 0: Port1
1: Port2
0 = module not present
1 = module present
Bit position
0: Relay output
1: Reserved
2: RS-485/RS-232 port
3: Ethernet Modbus
4: Reserved
5: Analog output
6: Reserved
7: Reserved
8: EtherNet/IP
9…15: Reserved
A Get_Attribute_Single command returns only elements 0 and 1 of this table.
The information in element 2 is accessible in the Identity Object, Class 0x01.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201663
Appendix APowerMonitor 500 Unit Data Tables
Notes:
64Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Technical Specifications
Table 35 - Input Specifications
AttributeValue
Rated inputs System type: 1, 2, or 3-phase
Current typeGalvanic insulation with built-in CTs
Current range (by CT) 5 A nom (6 A max)
Voltage (by direct connection or VT/PT) V1: 120/208V LL; V2: 400/600V LL
Accuracy (Display and RS-485 )
(at 25 °C ±5 °C, R.H. ≤ 60%, 48…62 Hz)
V1 model I
V2 model I
Current all models From 0.01…0.25 A: ±(1.0% of reading (RDG) + 2 digits
Line-neutral voltage In the range V
Line-line voltage In the range V
Frequency ±0.1 Hz (45…65 Hz)
Real and apparent power From 0.05… 0.25 A, PF 1: ±(2% RDG +1 digit)
Power factor (PF)±[0.001+0.5% (1.000 - ‘PF RDG’)]
Reactive power From 0.5… 6 A, sinφ 0.5L/C: ±(2.0% RDG +1 digit)
Real energy Class 1 according to EN62053-21, ANSI C12.1 Class B according to EN50470-3
Reactive energy Class 2 according to EN62053-23, ANSI C12.1
Start up current5 mA
Energy additional errors According to EN62053-21 ANSI C12.1, Influence quantities Class B according to EN50470-3, EN62053-23
Temperature drift≤ 200 ppm/°C
Sampling rate 3840 samples/second at 60 Hz, 3200 samples/second at 50 Hz
MeasurementsSee List of Connectable Variables
MethodTrue RMS measurements of distorted wave forms
Coupling typeWith CTs
Crest factor ≤3 (15 A max peak)
Current, nom (I
Vol tage , nom (V
: 5 A, Imax: 6A
nom
Line-neutral RMS: 40…144V AC
Line-Line RMS: 70…250V AC
: 5 A, Imax: 6 A
nom
Line-neutral RMS: 160…480V AC
Line-line RMS: 277…830V AC
From 0.25…6 A: ±(0.5% RDG +2 digits)
From 0.25…6A, PF 0.5L, PF1, PF 0.8C: ±(1.0% RDG+1 digit)
From 0.25… 0.5 A, sinφ 0.5L/C: ±(2.5% RDG +1 digit)
From 0.25…6 A, sinφ 1.0: ±(2.0% RDG+1 digit)
From 0.1… 0.25 A, sinφ 1: ±(2.5% RDG+1 digit)
TI P: si nφ = VA R/VA
): 5 A
nom
): V1: 120V AC LN, 208V AC LL; V2: 400V AC LN, 600V AC LL
nom
: ±(0.5% RDG +1 digit)
nom
: ±(1.0% RDG +1 digit)
nom
on page 72
Appendix B
Rockwell Automation Publication 1420-UM001E-EN-P - March 201665
Function The outputs can work as alarm outputs but also as digital outputs, communication controlled outputs, or in any other
AlarmsUp alarm and down alarm that is linked to the virtual alarms, for other details, see Virtual alarms
Response time, min≤200 ms, filters excluded. Set-point on-time delay: ‘0 s’
Pulse type The listed variables can be connected to any output
Pulse duration Programmable from 0.001…10.00 kWh/kVARh per pulse. ≥100 ms <120 ms (ON), ≥120 ms (OFF),
Communication controlled outputs The activation of the outputs is managed through the serial communication port
Insulation See Tab le 44
combination
on page 70
according to EN62052-31
Isolation Between Inputs and Outputs (1 minute)
66Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Technical SpecificationsAppendix B
Table 37 - Analog Output Specifications (A option)
AttributeValue
Number of outputs 2
Accuracy (at 25 °C ±5 °C, R.H. ≤ 60%) ± 0.2% of full scale
Range 0…20 mA
Configuration By using the front keypad
Signal retransmission The signal output can be connected to any instantaneous variable. See List of Connectable Variables
Scaling factor Programmable within the whole range of retransmission; it allows the retransmission management of all values from
Response time ≤400 ms typical (filter excluded)
Ripple ≤1% (according to IEC 60688-1, EN 60688-1)
Total temperature drift ≤500 ppm/°C
Load ≤ 600 Ω
Insulation See Tab le 44
0…20 mA DC
Isolation Between Inputs and Outputs (1 minute)
on page 72
Table 38 - Serial RS-485/RS-232 Communication Specifications (485 option)
AttributeValue
RS-485/RS-422 port
Type Multidrop, bidirectional (static and dynamic variables)
Connections 2-wire Max distance 1000 m,
termination directly on the module
Addresses 247, selectable by usingthe front key-pad or through the software
Protocol Modbus RTU
Data (bidirectional)
Dynamic (reading only) System and phase variables: see the Modbus register maps in Appendix A
Static (reading and writing only) All configuration parameters; see the Modbus register maps in Appendix A
Data formatOne start bit, eight data bit, no/even/odd parity, 1 stop bit
Communication rate Selectable: 9.6, 19.2, 38.4, 115.2 Kbps
Driver input capability 1/5 unit load. Max 160 transceivers on the same bus
Insulation See Tab le 44
RS-232 port
Type Bidirectional (static and dynamic variables)
Connections Three wires. Max distance 15 m
Protocol Modbus RTU
Isolation Between Inputs and Outputs (1 minute)
Rockwell Automation Publication 1420-UM001E-EN-P - March 201667
Appendix BTechnical Specifications
Table 38 - Serial RS-485/RS-232 Communication Specifications (485 option)
AttributeValue
Data (bidirectional)
Dynamic (reading only) System and phase variables: see the Modbus register tables in Appendix A
Static (reading and writing only) All configuration parameters; see the Modbus register tables in Appendix A
Data format One star t bit, eight data bit, no/even/odd parity, 1 stop bit
Communication rate Selectable: 9.6, 19.2, 38.4, 115.2 Kbps
Note With the rotary switch (on the back of the basic unit) in lock position, modific ation of programming parameters and reset
Insulation See Tab le 44
command with serial communication are not allowed. In this case, just the data reading is allowed
Isolation Between Inputs and Outputs (1 minute)
Table 39 - Energy Meters
AttributeValue
Meters
Total 4 (9+1 digit)
Partial4 (9+1 digit)
Pulse output Connectable to total and/or partial meters
Energy meter recording Storage of total and par tial energy meters. Energy meter storage format (EEPROM)
Min. -9,999,999,999.9 kWh/kVARh
Max. 9,999,999,999.9 kWh/kVARh
Energy meters
Total energy meters+kWh, +kVARh, -kWh, -kVARh
Partial energy meters +kWh, +kVARh, -kWh, -kVARh
Table 40 - Display, Status Indicators, and Commands
AttributeValue
Display refresh time ≤ 100 ms
Display Four Rows of display each with a max of four digits,
1 Row of display with a max of 10 digits
Type LCD, single color backlight
Digit dimensions Four digits: h 9.5 mm; 10 digits: h 6.0 mm
Instantaneous variables read-out Four digits
Energy variables read-out Imported Total/Partial: 9+1 digit or 10 digits;
Exported Total/Partial: 9+1 digit or 10 digits (with ‘-’ sign)
Run hours counter 8+2 digits (99,999,999 hours and 59 minutes max)
Overload status EEEE indication when the value being measured is exceeding the ‘Continuous inputs overload’ (max measurement
Max and min indication Max instantaneous variables: 9999; energies: 999,999,999.9 or 9,999,999,999
Front Position Status Indicators
Virtual alarms Four red status indicators available in case of virtual alarm (AL1-AL2- AL3-AL4).
Energy consumption Red status indicator (only kWh)
capacity)
Min instantaneous variables: 0.000; energies 0.0
The real alarm is just the activation of the proper static or relay output if the proper module is available
68Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Technical SpecificationsAppendix B
Table 40 - Display, Status Indicators, and Commands
AttributeValue
kWh pulsating 0.001 kWh/kVARh by pulse if the Ct ratio by VT ratio is ≤ 7
0.01 kWh/kVARh by pulse if the Ct ratio by VT ratio is ≥7.1 ≤ 70.0
0.1 kWh/kVARh by pulse if the Ct ratio by VT ratio is ≥70.1 ≤700.0
1 kWh/kVARh by pulse if the Ct ratio by VT ratio is ≥700.1 ≤ 7000
10 kWh/kVARh by pulse if the Ct ratio by VT ratio is ≥7001 ≤ 70.00k
100 kWh/kVARh by pulse if the Ct ratio by VT ratio is >70.01k
Max frequency: 16 Hz, according to EN50470-1
Rear position Status Indicators
On the base Green as power-on
On communication modules Two status indicators: one for TX (green) and one for RX (amber)
Key-pad For variable selection, programming of the instrument working parameters, ‘dmd’, ‘max’, total energy, and partial energy
Reset
Table 41 - Main Functions
AttributeValue
Password Numeric code of max four digits; two protection levels of the programming data
1st level Password ‘0’, no protection
2nd level Password from 1…9999, all data are protected
System selection
System 3P.n unbalanced load 3-phase (4-wire Wye)
System 3P unbalanced load 3-phase (3-wire) Delta
Three currents and three line-to-line voltage measurements
For ARON connection, two currents (with special wiring on screw terminals) and three line-to-line voltage
measurements.
System 3P.1 balanced load 3-phase (3-wire), one current and three line-to-line measurements.
3-phase (4-wire), one current and three line-to-neutral voltage measurements.
System 3P.2 balanced load 3-phase (2-wire), one current and one line-to-neutral (L1) voltage measurement
System 2P 2-phase (3-wire) Split-phase
System 1P1-phase (2-wire) Single phase
Transformer ratio
VT (PT) 1.0…999.9 / 1000…9999
CT 1.0…999.9 / 1000…9999 (up to 50 kA in case of CT with 5 A secondary current)
Filter
Operating range Selectable from 0…100% of the input display scale
Filtering coefficient Selectable from 1…256
Filter action Measurements, analog signal retransmission, serial communication (fundamental variables: V, A, W, and their derived
Displaying
Number of variables Up to five variables per page. See Front Panel Features
Backlight The backlight time is programmable from 0 (always on) to 255 minutes
ones)
on page 11. Seven different set of variables available according to
the application being selected. See Display Features on page 13
Rockwell Automation Publication 1420-UM001E-EN-P - March 201669
Appendix BTechnical Specifications
Table 41 - Main Functions
AttributeValue
Virtual alarms
Working condition Basic unit (indication only) or with (P) optional digital output modules
No. of alarms Up to 4
Working mode Up alarm and down alarm
Controlled variables The alarms can be connected to any instantaneous variable. See List of Connectable Variables
Set-point adjustment From 0…100% of the display scale
Hysteresis From 0 to full scale
On-time delay 0…9999 s
Response time, min ≤ 200 ms, filters excluded. Set-point on-time delay: ‘0 s’
Reset By using the front keypad. It is possible to reset the following data:
• All max and dmd values
• Total energy (kWh, kVARh)
• Partial energy (kWh, kVARh)
Clock
Functions Universal clock and calendar
Time format Hour: minutes: seconds with selectable 24 hours or AM/PM format
Date format Day-month-year with selectable DD-MM-YY or MM-DD-YY format
Battery life Ten years
Easy connection function For all display selections, both energy and power measurements are independent from the current direction. The
displayed energy is always ‘imported’
on page 72
Table 42 - General Specifications
AttributeValue
Temperature, operating -25…40 °C (-13…104 °F) (R.H. from 0…90% noncondensing at 40 °C) according to EN62053-21, EN50470-1 and
Temperature, storage-30…70 °C (-22…158 °F) (R.H. < 90% noncondensing @ 40 °C) according to EN62053-21, EN50470-1 and EN62053- 23
Installation category Cat. III (IEC60664, EN60664)
Insulation See Tab le 44
Dielectric strength 4 kV AC rms for 1 minute
Noise rejection CMRR 100 dB, 48…62 Hz
EMC According to EN62052-11
Electrostatic discharge15 kV air discharge
Immunity to radiated electromagnetic fieldsTest with current: 10V/m from 80…2000 MHz
Burst On current and voltage measuring inputs circuit: 4 kV
Immunity to conducted disturbances 10V/m from 150 KHz…80 MHz
Surge On current and voltage measuring inputs circuit: 4 kV; on ‘L’ auxiliar y power supply input: 1 kV
Digital and analog output modules: 89.5 x 63 x 16 mm
Serial and Ethernet Communication modules: 89.5 x 63 x 20 mm
Depth behind panel, max 81.7 mm
Material ABS, self-extinguishing: UL 94 V-0
Mounting Panel mounting
Pollution degree2
Protection degree, front
Protection degree, screw terminals IP20
Weight, approx400 g (0.88 lb) (packing included)
(1)
IP65, UL Type 4x indoor (NEMA4x indoor), UL Type 12 (NEMA12), for use on flat surface of a Type 4X Indoor enclosure; for
use on flat surface of a Type 12 enclosure.
2
(14 AWG)
Technical SpecificationsAppendix B
(1) Use with 60 °C or 70 °C copper conductor. Maximum surrounding air temperature 40 °C. Install the device in a pollution degree 2 environment. Open Type Device. The terminals L1, L2, and L3 are acquired
by a circuit where devices or system, including filters or ai r gaps, are used to control overvoltages at the maximum rated impulse withstand voltage peak of 6.0 kV. Devices or system is evaluated by using
the requirements in the Standard for Transient Voltage Surge Suppressors, UL 1449. Tighten terminals to 0.79
be more than 5.3 W.
N•m (7 lb•in). The sum of the internal power consumption of the assembled modules is not
Table 43 - Power Supply Specification
AttributeValue
Auxiliary power supply Nominal: 120/240V AC (50/60 Hz) or 120/240V DC
Range: 100…240V AC (48…62 Hz)
Power consumption 6VA
Table 44 - Isolation Between Inputs and Outputs (1 minute)
Measuring Inputs Relay Outputs Communication
Port
Measuring Inputs - 4 kV4 kV4 kV 4 kV
Relay outputs 4 kV 2 kV 4 kV 4 kV4 kV
Communication port4 kV4 kV- 4 kV 4 kV
Analog Outputs 4 kV 4 kV4 kV 0 kV 4 kV
Aux. power supply4 kV4 kV4 kV4 kV -
Analog Outputs Auxiliary Power
Supply
The channel isolation of the current inputs is 100V AC maximum and therefore
require external current transformers.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201671
Appendix BTechnical Specifications
List of Connectable Variables
The variables that are listed in this table can be connected to the following items:
• Analog outputs (all variables except energy values and run hour counter)
• Pulse (digital relay)outputs (only energy values)
• Alarms (except energy, hour counter, and max values)
(X) = available; (O) = not available (variable not available on the display);
(#) Not available (the relevant page is not displayed); (1) Max value with data
storage
Table 45 - Variables
No Variable1-ph. Sys (1P)2-ph. Sys (2P)3-ph. 3/4-wire
Balanced Sys
(3P.1)
1VL-N sys O X X X # X sys= system= (1)
2 VL1 X X X X # X (1)
3VL2 O X X X # X (1)
4VL3 O OXX# X(1)
5 VL-L sys O X X X X X sys= system= (1)
6 VL1-2 # X X X X X (1)
7VL2-3 # O XXX X (1)
8 VL3-1# O X X X X (1)
9 AL1X X X X X X (1)
10AL2 OXX X XX(1)
11 AL3 O OXX XX(1)
12 VA sysX X X X X X sys= system= (1)
13 VA L1 X X X X # X (1)
14VA L2OXXX # X(1)
15 VA L3OO X X#X (1)
16 var sysX X X X X X sys= system= (1)
17var L1 X X X X # X (1)
18 var L2 O XXX# X(1)
19 var L3OOXX#X (1)
20 W sys X XXXXXsys= system= (1)
21 WL1 X XXX#X(1)
22 WL2 OX XX#X(1)
23 WL3 O O X X # X (1)
24 PF sysX X X X X X sys= system= (1)
25 PF L1XXXX# X (1)
26PF L2 OX XX# X(1)
27PF L3OOXX # X (1)
28Hz X X X X X X (1)
29 Phase seq.OXXXXX
30Run Hours XXX X XX
31kWh (+) X X XXXXTotal
3-ph. 2-wire
Balanced Sys
(3P.2)
3-ph. 3-wire
Unbal. Sys (3P)
3-ph. 4-wire
Unbal. Sys
(3P.n)
Notes
72Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Table 45 - Variables
kWh, Accuracy (RDG) Depending on the Current
Percentage error limits for class index B
6A (I
max
)
6A (I
max
)
5A (I
n
)
5A (I
n
)
0.25A (I
tr
)
0.25A (I
tr
)
0.05A (I
min)
Accuracy limits (Real energy)
Start-up current: 5 mA
kvarh, Accuracy (RDG) Depending on the Current
Error (uncertainty)
Accuracy limits (Reactive energy)
Start-up current: 5 mA
PF=1
PF=L0.5
or C0.8
6A (I
max
)
6A (I
max
)
5A (I
n
)
5A (I
n
)
0.25A
0.5A
0.1A
0.25A
sin φ =1
sin φ =0.5
+1.0%
0%
+1.5%
-1.0%
-1.5%
+2.0%
0%
+2.5%
-2.0%
-2.5%
Technical SpecificationsAppendix B
No Variable1-ph. Sys (1P)2-ph. Sys (2P)3-ph. 3/4-wire
Balanced Sys
(3P.1)
3-ph. 2-wire
Balanced Sys
(3P.2)
3-ph. 3-wire
Unbal. Sys (3P)
3-ph. 4-wire
Unbal. Sys
(3P.n)
Notes
32kVARh (+) X X X X # X Total
33kWh (+) X X X X X X Partial
34kVARh (+) X X X X # X Partial
35kWh (-) X XX XXXTotal
36kVARh (-) X X X X # X Total
37kWh (-)X X X X X X Partial
38kVARh (-) X X X X # X Partial
Figure 26 - Accuracy
Rockwell Automation Publication 1420-UM001E-EN-P - March 201673
Appendix BTechnical Specifications
Phase variables
Instantaneous eective voltage
Figure 27 - Calculation Formulas
System variables
Equivalent three-phase voltage
Three-phase power factor
(TPF)
Instantaneous real power
Instantaneous power factor
Instantaneous eective current
Instantaneous apparent power
Instantaneous reactive power
Three-phase reactive power
Three-phase real power
Three-phase apparent power
Energy metering
Where:
i= considered phase (L1, L2 or L3)
P = real power; Q = reactive power;
=starting and ending time points
t
1,t2
of consumption recording; n = time
unit; Δ t= time interval between two
successive power consumptions;
= starting and ending discrete
n
1,n2
time points of consumption recording
74Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Appendix C
PowerMonitor 500 EtherNet/IP Device Profile
This section describes the specific CIP Objects, Instances, Attributes, and
Services that are supported by the PowerMonitor™ 500 system. This information
is for anyone wishing to integrate the PowerMonitor 500 system into existing or
planned shop floor networks.
General
Object Model and Interface
Identity Object - CLASS CODE
0x0001
For this device profile, we use a PowerMonitor 500 unit and an EtherNet/IP
communication module to provide power and energy metering data via an
EtherNet/IP network. The data is accessed as instances of the device Assembly
Object.
This profile documents objects that are proprietary, or in some way that is altered
from their generic behavior. Standard CIP objects that are generic in their
interface are documented in the EtherNet/IP specification.
The PowerMonitor 500 system is represented by the following Object Model.
Object ClassClass CodeInstance NumbersNumber of Connections
Identity0x000110
Assembly0x0004100d…108d18
The Identity Object is used to provide identification information about the
device. Each node supports at least one instance of the identity object. The
Identity Object is used by applications to determine which nodes are on the
network. The Identity Object supports Class Attributes (Instance 0) and
Instance 1.
See Section 5-2 of the CIP Common Specification for full details of this object.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201675
(1) Attribute ID 0x03 is not returned for serv ice type Get Attribute All.
(1)
Instances
Number Class
Attributes
Number Instance
Attributes
UINT 1
UINT 7
UINT 7
Instance 1 (PowerMonitor 500 device and Communication module)
Instance 1 represents the PowerMonitor 500 device with its EtherNet/IP
module. Instance 1 of the Identity Object is the one that is browsed by RSLinx®
software, relevant to the complete device, that is, the PowerMonitor 500 device
and Communication module.
Instance 1 of the Identity Object reports the following instance-specific attribute
values.
Identity Object Instance 1 Attributes
Attribute IDAccessNameData TypeValue
0x01GetVendor IDUINT1 (Rockwell Automation)
0x02GetDevice TypeUINT0x92 (146d)
0x03GetProduct CodeUINTSee Product Code Values
0x04GetRevisionStruct of :Dynamic (varies with the
Major RevisionUSINT
Minor RevisionUSINT
0x05GetStatusWORDDynamic
0x06GetSerial NumberUDINT940000000…950000000
0x07GetProduct NameSHORT_STRINGPowerMonitor 500
communication firmware
revisio n)
table
76Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Product Code Values
PowerMonitor 500 EtherNet/IP Device ProfileAppendix C
Part NumberNameProduct
Code
1420-V1-ENT146 - PowerMonitor 5004 PowerMonitor 500 (240V AC, No I/O)
1420-V1P-ENT146 - PowerMonitor 5005 PowerMonitor 500 (240V AC, Digital I/O)
1420-V1A-ENT146 - PowerMonitor 5006 PowerMonitor 500 (240V AC, Analog I/O)
1420-V2-ENT146 - PowerMonitor 5007 PowerMonitor 500 (600V AC, No I/O)
1420-V2P-ENT146 - PowerMonitor 5008 PowerMonitor 500 (600V AC, Digital I/O)
1420-V2A-ENT146 - PowerMonitor 5009 PowerMonitor 500 (600V AC, Analog I/O)
Description
Catalog Number 1420-V1-ENT
Catalog Number 1420-V1P-ENT
Catalog Number 1420-V1A-ENT
Catalog Number 1420-V2-ENT
Catalog Number 1420-V2P-ENT
Catalog Number 1420-V2A-ENT
Identity Object Services
Service CodeClass/Instance UsageService Name
0x01Class/Instance Get_Attributes_All
0x0EClass/Instance Get_Attribute_Single
Rockwell Automation Publication 1420-UM001E-EN-P - March 201677
The Get Attribute All service returns a concatenation of all class or instance
attributes.
The following example shows how to configure your message instruction
configuration for the Get Attribute All Service type for the Logix Designer
application. In this example, we read the class attributes (Instance 0) of the
Identity Object.
ParameterChoiceNotes
Message TypeCIP Generic
Service TypeCustom
Service Code1 (hex)1 = Get Attribute All
e = Get Attribute Single
Instance00 = Identity Object Class Attributes
1 = Identity Object Instance 1 Attributes
Class1 (hex)1 = Identity Object
Attribute0 (hex)This parameter is irrelevant for Get Attribute All service, but a value must be
Source ElementSee NotesThis element is irrelevant for the Get Attribute All service, however it must be
Source LengthSee NotesThis parameter is irrelevant for the Get Attribute All service but must be
Destination
Element
See NotesThis element is the first element of the controller tag that stores the data being
entered in this parameter for the Customer service type.
completed for the Custom service type. In this example, the Source Element
and the Destination Element are set to the same array.
completed. The value can be less than or equal to the Source Element byte size
to avoid error.
read. The tag is an array of the applicable data type the same length as the
Identity Instance. In this example, the tag is an array of five INT elements.
78Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 EtherNet/IP Device ProfileAppendix C
Get Attribute Single Service
The Get Attribute Single service returns the single attribute that is specified by
the parameter Attribute ID.
Request Parameters
Parameter Data Type Description
Attribute ID UINT Identifies the attribute to be read/returned
The following example shows how to create your message instruction
configuration for the Get Attribute Single Service type for the Logix Designer
application. In this example, we read the Instance 1 attributes of the Identity
Object.
ParameterChoiceNotes
Message TypeCIP Generic
Service TypeGet Attribute Single
Service Codee (hex)e = Get Attribute Single
Instance10 = Identity Object Class Attributes
1 = Identity Object Instance 1 Attributes
Class1 (hex)1 = Identity Object
Attribute3 (hex)This parameter is the attribute ID of the specific attribute to be read. In
Source ElementN/ANot applicable to a Read
Source LengthN/ANot applicable to a Read
Destination ElementSee NotesThis element is the first element of the controller tag that stores the
this example, 3 = Product Code.
data being read. The tag is an array of the applicable data type the
same length as the Attribute. In this example, the tag is an array of
one INT element.
Rockwell Automation Publication 1420-UM001E-EN-P - March 201679
The Assembly Object collects attributes from multiple objects, allowing data to
or from each object to be sent or received over a connection. Assembly Objects
are used to produce and/or consume data to/from the network. An instance of
the Assembly Object can both produce and consume data from the network.
Static assemblies are factory determined and cannot be modified. Members
cannot be added or deleted. The implementation of the Assembly Object are
static. See Section 5-5 of the CIP Common Specification for full details of this
object.
Assembly Object Class Attributes
Attr IDAccess Name Data Type Default Value
0x01Get Revision UINT 2
0x02 Get Max Instance UINT 108d
0x03 Get Number of Instances UINT 9
0x04 Get Optional Attributes List STRUCT of UINT
0x06 Get Maximum ID Number Class
Attribu tes
0x07 Get Maximum ID Number Instance
Attribu tes
ARRAY of UINT
UINT 7
UINT 4
0x0001,
{0x0004}
Assembly Object Instance Attributes
Attr IDAccess Name Data Type Default Value
0x03 Get Data Instance Dependent
0x04Get Size Size (in bytes) of the Data attribute Instance Dependent
(1) S ee Chapter 4 for more information.
(1)
All member data that is packed
into one array.
(1)
80Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 EtherNet/IP Device ProfileAppendix C
Assembly Object Instances
The communication module Assembly Object supports nine instances (instances
100d to 108d). The Data attributes of these instances can be accessed via Class 1
scheduled connections and via Class 3 or UCMM unscheduled connections.
See Appendix A
, PowerMonitor 500 EtherNet/IP Device Profile for more
information on the content of the Assembly Instances.
Assembly Instance Size (No. of elements) Data Type Data Table Description
10020UINTProduct Information
10112REALReal-time Voltage and Current
10218REALReal-time Power, PF, Frequency
10312REALMax Voltage and Current
10417REALMax Power, PF, Frequency
10512REALDemand Voltage and Current
10617REALDemand Power, PF, Frequency
10718REALEnergy Meters
1082UINTAlarm and Output Status
Assembly Object Services
Service CodeClass/Instance UsageService Name
0x0E Class/Instance Get Attribute Single
Rockwell Automation Publication 1420-UM001E-EN-P - March 201681
The Get Attribute Single service returns the single attribute that is specified by
the parameter Attribute ID.
The following example shows how to create your message instruction
configuration for the Get Attribute Single Service type for the Logix Designer
application. In this example, we read the Instance 102 attributes of the Assembly
Object.
Parame terC hoiceNotes
Message TypeCIP Generic
Service TypeGet Attribute Single
Service Codee (hex)e = Get Attribute Single
Instance102This parameter is the Assembly Instance of the specific
Class4 (hex)4 = Assembly Object
Attribute3 (hex)3 = Data
Source ElementN/ANot applicable to a Read
Source LengthN/ANot applicable to a Read
Destination ElementSee NotesThis element is the first element of the controller tag that
data table to be read. In this example, 102 = Real-time
Power, P F, Frequ ency
4 = Size of data
stores the data being read. The tag is an array of the
applicable data type the same length as the Attribute. In
this example, the tag is an array of 18 REAL elements.
82Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
PowerMonitor 500 EtherNet/IP Device ProfileAppendix C
Connections
The Assembly Object supports both scheduled (Class 1) and unscheduled
connections (Class 3 and UCMM). Both connections are used to access
instances 100d to 108d of the Assembly Object:
• UDP - Nine Class 1 connections each to the nine Assembly Instances 100
to 108 at 100 ms RPI ran stable
• TCP - Nine Class 3 connections each to the nine Assembly Instances 100
to 108 at 200 ms RPI ran stable
• Both - UDP and TCP can run simultaneously
Heartbeat Instances
With the Assembly Instances shown earlier, the communication module also
recognizes two heartbeat instances. A heartbeat instance is a virtual output
instance that is specified by devices wishing to establish Input Only and Listen
Only Class 1 I/O connections to the communication module. Data cannot be
read from or written to a heartbeat instance. The heartbeat instance is merely a
programming construct that serves to keep the connection active.
Technical Notes
The communication module heartbeat instances are Instance 98 for the Input
Only connection and Instance 99 for the Listen Only connection.
Behavior
The purpose of the Assembly Object is to act as a network interface to the
PowerMonitor 500 unit data. That data is accessed by various means: Class 1 or
Class 3 connections and also with UCMM messages.
This section lists additional technical information about Ethernet network
communication.
Parameters
For the EtherNet/IP communication module, set the following parameters by
using Programming mode through the base module front panel:
• IP address
• Subnet
• Gateway
• Modbus TCP/IP port
• Address Conflict Detect (ACD)
Rockwell Automation Publication 1420-UM001E-EN-P - March 201683
The communication module supports Modbus TCP/IP. The protocol is the
same as the PowerMonitor 500 unit with RS-485 (Modbus RTU). See Chapter 4
for protocol details. In this product, only one Modbus TCP/IP connection (one
socket) is allowed.
The EtherNet/IP and Modbus TCP/IP do not run concurrently. If
ModbusTCP/IP communication occurs, EtherNet/IP communication stops
temporarily but recovers in a minute or two.
We recommend that you use Modbus TCP/IP to configure or write to the
PowerMonitor 500 unit and that you use Ethernet/IP to read the PowerMonitor
500 unit.
ACD
If an address conflict is detected from the communication module, then the base
module displays ‘ACD Found’. In that case, it is necessary to check the network
configuration, resolve the problem, and then cycle control power to the power
monitor to re-establish communication.
TCP/IP Port
Default EtherNet/IP ports include the following:
• UDP (implicit message): 2222 (0x08AE)
• TCP (explicit message): 44818 (0xAF12)
You can reassign the default Modbus TCP/IP port: 502 (0x01F6).
84Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
Index
Numerics
485 option 67
A
A option 67
about PowerMonitor 500
access information pages
10, 73
accuracy
additional button functions
address
44
Modbus
physical
alarm configuration
alarm icons
analog output specifications
analog outputs
44
13
23
configuration
9
15
36
35, 59
B
billing 9
11
buttons
additional functions
descriptions26
12
C
calculation formulas 74
catalog number explanation
change
decimal point
multiplier
CIP generic
40
class 1
comman specifications
commands
communication
EtherNet⁄IP
Modbus
ports
RS-23210, 43
RS-485
communication commands
configurable alarms
configuration
alarm
analog output
analog outputs communication
relay outputs communication
RS-232 communication
RS-485 communication
configuration alarms
configuration base unit
configuration flow chart
9
control
27
27
38
68
61
10
10, 43
9
10, 43
10
25
36
35
5858
58
57
28-31
37
12
67
7
60
59
cost allocation
current transformer wiring
9
19
D
data tables 47
data types supported
decimal point change
diagrams,wiring
digital filter programming examples
digital filtering operation
digital output specifications
digital outputs wiring
dimensions
display
display description 26
display specifications
10, 17
optional modules
10, 13
alarm icons
features
13
icons
13
4427
19
32
66
23
17
13
68
E
electronic data sheet 38
energy metering values
energy meters specifications
Rockwell Automation Publication 1420-UM001E-EN-P - March 201685
Index
front panel
11, 26
buttons
indicators
functions 9
11
G
general specifications 70
geometric representation
ground connection
48
44
I
icons
13
alarm
display13
IEC vs NEMA diagrams
implicit messaging
indications
indicators
information access
input specifications
installation
IP65
isolation between inputs and outputs
13
11
17, 18
9, 10
19
40
15
65
L
line amplifier 44
list of variables
load profiling
72-73
9
71
P
P option specifications 66
panel cut-out
password
physical address
ports
power and power factor
power supply 10
power supply wiring
power system
power system control
PowerMonitor 500
product information
programming mode
protection
pulse output specifications
17
25
44
EtherNet/IP
RS-485/RS-232
geometric representation
9
9
22
monitoring
9
9
9
about
configuration
cut-out17
dimensions
features
functions9
installation
panel installation
wiring terminals18
25
17
9
17
18
49
25
25
9, 10
IP65
NEMA 1210
NEMA 4X
10
48
66
M
main functions specifications 69
menu page numbers
message setup
Modbus
44
address
commands
communication
configure alarms
configure base unit
data types supported
energy metering values
functions supported
real-time metering demand
real-time metering values
register format
register maps
status
save changes 27
serial communication specifications
shielded cable
single-phase
software
FactoryTalk EnergyMetrix
44
10
9
67
86Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
specifications
485 option
A option
analog output67
command
digital output
display
energy meters
general
input65
isolation between inputs and outputs
main functions
P option66
power supply
pulse output
relay output66
RS-485 and RS-232
serial communication
status indicators
status
status indicators specifications
sub-billing
67
67
68
66
68
68
70
69
71
66
67
67
68
63
9
T
three-phase 10
Index
71
68
V
variables 72-73
voltage ranges
W
wiring
analog outputs
digital outputs
Ethernet24
RS-232
23
RS-485
23
wiring diagrams
wiring terminals
10
23
23
19
18
Rockwell Automation Publication 1420-UM001E-EN-P - March 201687
Index
Notes:
88Rockwell Automation Publication 1420-UM001E-EN-P - March 2016
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