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Allen-Bradley 1420-V1 User Manual Download Page 43

Rockwell Automation Publication 1420-UM001E-EN-P - March 2016

43

Communication

Chapter 4

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.

IMPORTANT

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.

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Summary of Contents for 1420-V1

Page 1: ...1420 V1 1420 V1P 1420 V1A 1420 V1 ENT 1420 V1 485 1420 V1P ENT 1420 V1P 485 1420 V1A ENT 1420 V1A 485 1420 V2 1420 V2P 1420 V2A 1420 V2 ENT 1420 V2 485 1420 V2P ENT 1420 V2P 485 1420 V2A ENT 1420 V2A...

Page 2: ...nformation 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 T...

Page 3: ...hanges 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 Topic Page Updated wiring...

Page 4: ...4 Rockwell Automation Publication 1420 UM001E EN P March 2016 Summary of Changes Notes...

Page 5: ...UnitConfiguration Configure with the Display 25 Configuration Flowchart 28 Digital Filtering Operation 32 Analog Output Configuration Examples 35 Alarm Configuration Example 36 Chapter4 Communication...

Page 6: ...6 Rockwell Automation Publication 1420 UM001E EN P March 2016 Table of Contents Index 85...

Page 7: ...functionality configuration and operation Alarm configuration and operation PowerMonitor 500 data tables Intended Audience This manual is intended for qualified personnel You need a basic understandi...

Page 8: ...com literature To order paper copies of technical documentation contact your local Allen Bradley distributor or Rockwell Automation sales representative Resource Description Industrial Automation Wiri...

Page 9: ...ctive 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...

Page 10: ...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 t...

Page 11: ...d Exit for at least 2 seconds to exit the programming menu Press Program select to confirm andreturn to the metering display and exit the programming menu without saving your changes To save changes u...

Page 12: ...nd 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 m...

Page 13: ...es themeasured value phase line to neutral L1 or line to line L12 3 Indicates themeasured value phase line to neutral L2 or line to line L23 4 Indicates themeasured value phase line to neutral L3 or l...

Page 14: ...lay 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 Table 1 Row 1 Data Parameters 1 2 3 4 5...

Page 15: ...onn xxx 3PN 3P 3P1 3P2 1P 2P Status Indicator Pulse kWh Pulse OUT1 kWh kVARh 1 Pulse OUT2 kWh kVARh 1 Remote out 1 AL1 AL2 AL3 AL4 Analog 1 1 Analog2 1 COM port 1 IP Address XX XX X X XX XX Real time...

Page 16: ...Chapter 1 PowerMonitor 500 Unit Overview Figure 3 and 4 are examples of how the information pages are displayed Figure 3 Information Page 2 Figure 4 Information Page 15 PowerMonitor 500 Row 1 Row 2 Ro...

Page 17: ...re 5 Base Unit Dimensions Figure 6 Panel Cut out Figure 7 Factory installed Optional Modules 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...

Page 18: ...18 Rockwell Automation Publication 1420 UM001E EN P March 2016 Chapter 2 Installation and Wiring Figure 8 Installation in Panel Figure 9 Rear View of Unit Showing Wiring Terminals Power Supply...

Page 19: ...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 Interpretatio...

Page 20: ...measurementbyusingonlyonephaseconnection Unbalanceinthemeasured circuit affects the accuracy of the measurements Line L1 N Fuse PT VT Load Ground Shorting terminalblock S 1 I1 Ground CT 1 L2 L3 L1 S...

Page 21: ...VT Connections ARON Open Delta Line L1 Fuse Load Ground Shorting terminalblock S 1 I1 CT 1 L2 L3 L1 S 2 PM 500 2 CT Connection ARON S 1 I2 S 2 S 1 I3 CT 3 S 2 Fuse L2 Fuse L3 N Shorting terminalblock...

Page 22: ...o the unit Figure 17 Supply Power Line L1 N Fuse PT 1 VT 1 Ground L2 L1 PM 500 2 CT and2 PT VT Connections Fuse PT 2 VT 2 L2 Line L1 N Fuse Load Ground Shorting terminalblock S1 I1 CT 1 L2 L1 S 2 PM 5...

Page 23: ...Out 2 Out1 Out2 Analog 20 mA DC RS 485 Port RS 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 Additionaldevicesthata...

Page 24: ...or 500 unit connects to industry standard Ethernet hubs and switches by using standard CAT 5 UTP unshielded twisted pair cables with RJ45 connectors Table 5 shows the cable and connector pin assignmen...

Page 25: ...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 for a...

Page 26: ...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 Whenheldforatleast 2seconds cancelsthe edit and rest...

Page 27: ...capability To modify the decimal point position and the multiplier use the Up and Down arrow 7 to select the desired value IMPORTANT To save programming changes navigate to the End menu page 260 and p...

Page 28: ...T 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 22 for descriptions and wiring diagrams that correspond to th...

Page 29: ...dth 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...

Page 30: ...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 s...

Page 31: ...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 i...

Page 32: ...ure 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 sta...

Page 33: ...ed within 1 and 255 Example2 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...

Page 34: ...tions 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...

Page 35: ...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...

Page 36: ...xample when 300 kW are exceeded the alarm occurs and the load that is controlled by the relay output is disconnected An UP alarm is selected The recommended programming is the following ENABLE YES VAR...

Page 37: ...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 The power monitor supports the followin...

Page 38: ...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 sho...

Page 39: ...ssage Type Choose message type CIP Generic Service Type Read Select service type Get Attribute Single E hex Instance See Appendix A for the CIP Instance of the data table to read In this example the p...

Page 40: ...y 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 onli...

Page 41: ...1 12 Input Data REAL Real time Voltage and Current 102 18 Input Data REAL Real time Power PF Frequency 103 12 Input Data REAL Max Voltage and Current 104 17 Input Data REAL Max Power PF Frequency 105...

Page 42: ...he 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 XI...

Page 43: ...ation_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 communicatio...

Page 44: ...x04 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...

Page 45: ...ords that are organized as shown in the following diagram 32 bit and 64 bit Data types that are presented as arrays of single registers in LSW least significant word to MSW most significant word order...

Page 46: ...46 Rockwell Automation Publication 1420 UM001E EN P March 2016 Chapter 4 Communication Notes...

Page 47: ...s power PF frequency X 300361 104 17 53 DMD Metering Values voltage andcurrent X 300849 105 12 54 DMD Metering Values power PF frequency X 300873 106 17 55 Total and Partial Energy Meters EtherNet IP...

Page 48: ...ductive 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...

Page 49: ...ormat Notes 1 300001 1 Base firmware revision UINT MSB ASCII code for model A V2 B V1 LSB numeric number for revision 2 300002 1 EtherNet IP module firmware revision UINT MSB ASCII code for model LSB...

Page 50: ...ata Access Read Only Table 12 Real time Metering Values voltage and current Data Table Element Modbus Address Length words Description Units Data Format Notes 0 300081 2 V L1 N REAL 1 300083 2 V L2 N...

Page 51: ...ds Description Units Data Format Notes 0 300105 2 W L1 REAL 1 300107 2 W L2 REAL 2 300109 2 W L3 REAL 3 300111 2 W REAL 4 300113 2 VA L1 REAL 5 300115 2 VA L2 REAL 6 300117 2 VA L3 REAL 7 300119 2 VA...

Page 52: ...s Read Only Table 16 Maximum Metering Values voltage and current Data Table Element Modbus Address Length words Description Units Data Format Notes 0 300337 2 Max V L1 N REAL 1 300339 2 Max V L2 N REA...

Page 53: ...Format Notes 0 300361 2 Max W L1 REAL 1 300363 2 Max W L2 REAL 2 300365 2 Max W L3 REAL 3 300367 2 Max W 3 REAL 4 300369 2 Max VA L1 REAL 5 300371 2 Max VA L2 REAL 6 300373 2 Max VA L3 REAL 7 300375...

Page 54: ...s Read Only Table 20 DMD Metering Values voltage and current Data Table Element Modbus Address Length words Description Units Data Format Notes 0 300849 2 DMD V L1 N REAL 1 300851 2 DMD V L2 N REAL 2...

Page 55: ...Length words Description Units Data Format Notes 0 300873 2 DMD W L1 REAL 1 300875 2 DMD W L2 REAL 2 300877 2 DMD W L3 REAL 3 300879 2 DMD W REAL 4 300881 2 DMD VA L1 REAL 5 300883 2 DMD VA L2 REAL 6...

Page 56: ...EAL Range 0 9 999 999 2 2 Total kVARh REAL Range 0 0 999 999 999 3 2 Total GVARh REAL Range 0 9 999 999 4 2 Total kWh REAL Range 0 0 999 999 999 5 2 Total GWh REAL Range 0 9 999 999 6 2 Total kVARh RE...

Page 57: ...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 wireone current and 3 phase to neutral voltage measurements Value 5 3PN default...

Page 58: ...4358 1 Clock calendar Year 1 UINT 2009 2099 304359 1 Clock calendar Month 1 UINT 1 12 304360 1 Clock calendar Day 1 UINT 1 31 304361 1 Clock Hour 1 UINT 0 23 304362 1 Clock Minutes 1 UINT 0 59 304363...

Page 59: ...Table 30 Analog Output Configuration Parameters Modbus Address Length words Description Units Data Format Notes Block address 0 1 Type of the variable that is linked to the N analog output UINT Block...

Page 60: ...1 Total kVARh 2 Total kWh 3 Total kVARh 4 Partial kWh 5 Partial kVARh 6 Partial kWh 7 Partial kVARh 304869 2 Digital output channel 1 pulse REAL Pulse weight kWh pulse or kVARh pulse Value min 0 001 V...

Page 61: ...or 2 UINT Value 1 command executed Value 1 no effect 312547 1 Set pulse digital output 1 UINT Value 0 reset output Value 1 set output Other values no effect 312548 1 Set pulse digital output 2 UINT Va...

Page 62: ...NT 16 312826 1 Reset PF L1 UINT 16 312827 1 Reset PF L2 UINT 16 312828 1 Reset PF L3 UINT 16 312829 1 Reset PF UINT 16 312830 1 Reset Hz UINT 16 313569 1 Reset Total kWh UINT Value 1 command executed...

Page 63: ...osition 0 Virtual alarm 1 1 Virtual alarm 2 2 Virtual alarm 3 3 Virtual alarm 4 1 316386 1 Output port UINT Bit value 0 OFF Bit value 1 ON Important only if the portis notlinked to thecounter Bit posi...

Page 64: ...64 Rockwell Automation Publication 1420 UM001E EN P March 2016 Appendix A PowerMonitor 500 Unit Data Tables Notes...

Page 65: ...5 RDG 1 digit Line line voltage In the range Vnom 1 0 RDG 1 digit Frequency 0 1 Hz 45 65 Hz Real and apparent power From 0 05 0 25 A PF 1 2 RDG 1 digit From 0 25 6A PF 0 5L PF1 PF 0 8C 1 0 RDG 1 digit...

Page 66: ...50V AC DC 12 5 A at 24VDC DC 13 1 5 A at 24V DC Configuration Use the front keypad Function The outputs can work as alarm outputs but also as digital outputs communication controlled outputs or in any...

Page 67: ...minute Table 38 Serial RS 485 RS 232 Communication Specifications 485 option Attribute Value RS 485 RS 422 port Type Multidrop bidirectional static and dynamic variables Connections 2 wire Max distan...

Page 68: ...EPROM 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...

Page 69: ...stem 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...

Page 70: ...re independent from the current direction The displayed energy is always imported Table 41 Main Functions Attribute Value Table 42 General Specifications Attribute Value Temperature operating 25 40 C...

Page 71: ...inapollution degree2environment OpenTypeDevice TheterminalsL1 L2 andL3areacquired by a circuit wheredevices or system includingfiltersor airgaps areused to controlovervoltages at the maximum rated imp...

Page 72: ...h 2 wire Balanced Sys 3P 2 3 ph 3 wire Unbal Sys 3P 3 ph 4 wire Unbal Sys 3P n Notes 1 VL N sys O X X X X sys system 1 2 VL1 X X X X X 1 3 VL2 O X X X X 1 4 VL3 O O X X X 1 5 VL L sys O X X X X X sys...

Page 73: ...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 kWh Accuracy RDG Depending on the Current Percentage error limits for class...

Page 74: ...us effective voltage Instantaneous real power Instantaneous power factor Instantaneous effective current Instantaneous apparent power Instantaneous reactive power Energy metering Where i considered ph...

Page 75: ...nts 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 Obj...

Page 76: ...bject Instance 1 Attributes Attr ID Access Name Data Type Default Value 0x01 Get Revision UINT 1 0x02 Get Max Instance UINT 1 0x03 Get Number of Instances 1 1 Attribute ID 0x03 is not returned for ser...

Page 77: ...gital I O Catalog Number 1420 V1P ENT 1420 V1A ENT 146 PowerMonitor 500 6 PowerMonitor 500 240V AC Analog I O Catalog Number 1420 V1A ENT 1420 V2 ENT 146 PowerMonitor 500 7 PowerMonitor 500 600V AC No...

Page 78: ...ance 1 Attributes Class 1 hex 1 Identity Object Attribute 0 hex This parameter is irrelevant for Get Attribute All service but a value must be entered in this parameter for the Customer service type S...

Page 79: ...ute ID UINT Identifies the attribute to be read returned Parameter Choice Notes Message Type CIP Generic Service Type Get Attribute Single Service Code e hex e Get Attribute Single Instance 1 0 Identi...

Page 80: ...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 Assembly Object Instance Attribute...

Page 81: ...00 EtherNet IP Device Profile for more information on the content of the Assembly Instances Assembly Object Services Assembly Instance Size No of elements Data Type Data Table Description 100 20 UINT...

Page 82: ...y Object Parameter Choice Notes Message Type CIP Generic Service Type Get Attribute Single Service Code e hex e Get Attribute Single Instance 102 This parameteris theAssembly Instance of the specific...

Page 83: ...ied 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...

Page 84: ...mmunication stops temporarily but recovers in a minute or two ACD If an address conflict is detected from the communication module then the base module displays ACD Found In that case it is necessary...

Page 85: ...8 configuration alarms 58 configuration base unit 57 configuration flow chart 28 31 control 9 cost allocation 9 current transformer wiring 19 D data tables 47 data types supported 44 decimal point cha...

Page 86: ...register format 45 register maps 49 status 63 TCP IP 43 monitoring 9 multiplier change 27 O optional modules dimensions 17 P P option specifications 66 panel cut out 17 password 25 physical address 4...

Page 87: ...tion between inputs and outputs 71 main functions 69 P option 66 power supply 71 pulse output 66 relay output 66 RS 485 and RS 232 67 serial communication 67 status indicators 68 status 63 status indi...

Page 88: ...88 Rockwell Automation Publication 1420 UM001E EN P March 2016 Index Notes...

Page 89: ......

Page 90: ...t Use the code to route your call directly to a technical support engineer http www rockwellautomation com global support direct dial page Literature Library Installation Instructions Manuals Brochure...

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