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1404-UM001F-EN-P, Bulletin 1404 Powermonitor 3000 User Manual

1. Readback Source Location Select Table Segment or Channel 1 2 Results Table Client verifies 3 correct data segment or channel n Large data structure e g log oscillogram etc Refer to Chapter 5 Setpoint Programming and Operation Chapter 7 Data Logging and Chapter 8 Advanced Features for details of indexed mode data reads for each of these functions Publication 1404 UM001F EN P November 2009 89 Chapter4 Communication Data Messaging application Considerations 90 1 0 Type Communication Powermonitor 3000 units with optional remote I O EtherNet IP ControlNet and DeviceNet communication provide I O type implicit messaging Remote I O units emulate a logical quarter rack on the I O channel The corresponding two word output and input image table elements are automatically scanned by the I O scanner and the data points they contain are available for use in the logic program of the controller associated with the I O scanner In DeviceNet units Instances 1 and 2 comprise the DeviceNet polled change of state or cyclic connections The default input table contains 6 integer typed elements and the output table contains two integer typed elements You may configure instance 1 Refer to the User configured I O Table discussion on page 122 In EtherNet IP and ControlNet units Instances 1 and 2 comprise the Class 1 connection As in DeviceNet units Instance 1 contains 6 integer element
2. Refer to DeviceNet Class Services on page 102 In this example the ControlLogix reads the User configured Data Table into tag dataPM3K_User 0 configured as an array of 23 elements of Real type ControlLogix Controller CIP Generic Messaging Example Message Configuration msgPM3K_User CIP Generic This example uses the following message parameter values e Service Type Get_Attribute_Single service code oe hex e Object class 4 hex Assembly e Instance 37 decimal User configured table results e Attribute 3 hex Data Publication 1404 UM001F EN P November 2009 109 Chapter4 Communication Set EtherNet IP I O Connection Ethernet Powermonitor 3000 units support a Class 1 connection to Instance 1 and 2 1 To utilize this scheduled connection to a ControlLogix controller open the controller program offline in RSLogix 5000 software 2 Select the 1756 ENET B or 1756 ENBT A module in the I O configuration 3 Add the power monitor as a Generic Ethernet Module I O Connection Setup shows a typical configuration TIP If you wish to establish a Class 1 connection with more than one controller to the same power monitor use instance 1 and 2 for the first controller and use instance 1 and 255 for all remaining controllers instance 255 is a placeholder instance since instance 2 only supports one connection If the controller loses its connection to instance 1 and 2 the instance 255 connection is
3. Analog Output Address Space The Modbus protocol supports four types of data Discrete Input Coil Input Register and Holding Register The power monitor supports Input Registers read only and Holding Registers read write or write only Input Registers and Holding Registers are 16 bits long Floating point values in the data tables are represented as big Endian two register arrays in IEEE 754 floating point format The Modbus client application must be able to reassemble the two word array into a valid floating point value The power monitor returns the Modbus error codes shown in the table below when appropriate In the event of an exception reply not only is the exception code sent to the master device but also the power monitor slave s diagnostic counter records the error code to further explain the error reason 93 Chapter 4 94 Communication The data table number of error request and element offset of error request in the Write Error Status table is updated with the first Modbus address of the table and element offset that the incoming request packet attempts to write to Modbus Error Codes Error Description Meaning Response Code Exception Code 0 No error None 1 Function Code The function does not support Broadcast Nothing cannot Broadcast transmitted 2 Function Code not The controller does not support this 1 supported Modbus function or sub function 3 Bad Command The Modbus Com
4. DeviceNet Message Types The power monitor supports the following DeviceNet message types DeviceNet Message Types Group CAN Identifier Message Type Field 1 01101Xxxxxx Slave s 1 0 COS or Cyclic message 0111 1Xxxxxx Slave s 1 0 poll response or COS Cyclic ACK message 2 10xxxxxx010 Master s COS Cyclic ACK message 10yyyyyy011 Slave s explicit unconnected response message 10Xxxxxx100 Master s explicit request message 10xxxxxx101 Master s I O poll command COS Cyclic message 10xxxxxx110 Group 2 only unconnected explicit message request 10xxxxxx111 Duplicate MAC ID check message 3 11101Xxxxxx Unconnected explicit response 1111 OXxxxxx Unconnected explicit request 4 Not used XxXxxxx Destination MAC ID node no 6 bit field yyyyyy Source MAC ID node no 6 it field 101 Chapter4 Communication DeviceNet Class Services As a group 2 slave device the power monitor supports the following class and instance services DeviceNet Class Services Service Name Service Code Service Code hex decimal Reset 05 05 Get_Attribute_Single OE 14 Set_Attribute_Single 10 16 Allocate_Group_2_Identifier_Set 4B 75 Release_Group_2_lIdentifier_Set AC 76 DeviceNet Object Classes The power monitor supports the following DeviceNet object classes DeviceNet Object Classes Class hex Object 01 Identity 02 Message Router
5. 03 DeviceNet 04 Assembly 05 Connection 2B Acknowledge handler Indexed Data Table Reads by using DeviceNet Communication Powermonitor 3000 units with optional DeviceNet communication support only manual indexed mode for reading large data structures such as oscillograms setpoint status logs and harmonics Refer to the appropriate sections of this manual for detailed information 102 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 DeviceNet Unique Write Identifier The communication interface used in the DeviceNet communication option is programmed to reject duplicate write messages Because of this all writeable data tables in the power monitor include an element called DeviceNet unique write identifier In many cases your client application may ignore this element because the message data is unique However where your client application performs repeated identical writes it should increment the DeviceNet Unique Write Identifier with each new message An example of this would be reading the Event Log or Trend Log Ethernet Communication Option The Powermonitor 3000 units with optional Ethernet communication operates as a slave device on the Ethernet network You can use your web browser and the unit s built in web server to access metering and stats data Starting with Master Module firmware version 4 and Ethernet firmware version 3 the Ethernet port may be configured for the following p
6. 57 6 Kbps Node Address Uniquely identifies the 1 247 Unit ID Powermonitor device on number a multi drop network Data Format Data bits Stop bits 8 1 none 8 1 none Parity 8 1 even 8 1 odd Flow Control RS 232 hardware flow 0 none 0 none Handshaking control 1 RTS CTS Inter Character Mimimum delay between 0 to 6553 ms 0 3 5 Timeout characters that indicates character end of Modbus message times packet Error Checking BCC CRC CRC Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Auto Configure Instructions for DF1 Full duplex Verify that the latest EDS files have been installed for firmware revision 3 Follow these steps to configure DF1 full duplex 1 Select the serial DF1 driver from the selection menu and click Add New Available Driver Types Add New r Configured Drivers Name and Description AB_ETH 1 A B Ethernet RUNNING Running 2 Select the default driver name or provide your own Add New RSLinx Driver x Choose a name for the new driver 15 characters maximum Cancel JAB_D F1 1 Cancel 3 When presented with the configuration screen you may use the auto configure feature or enter your own configuration Publication 1404 UM001F EN P November 2009 67 68 Chapter 4 Communication To use the auto configure you must first select the device as SLC CHO Micro PanelView Configure RS 232 DF1 Dev
7. Configuration by Using the Display Module on page 47 You may also configure communication parameters by using the native or optional communication ports However because this may lead to loss of communication with the port being configured we recommend using the display module for initial communication configuration 63 Chapter 4 64 Communication If you choose to configure communication parameters by using communication please refer to the Native Communication Configuration table and the Optional Communication Configuration Parameters table in Appendix A Native RS 485 Communication Your Powermonitor 3000 unit is set up to communicate via its native RS 485 port when you first power it up except for units with an optional RS 232 communication port The communication configuration includes the following parameters e Protocol Allen Bradley DF1 full duplex DF1 half duplex slave Modbus RTU slave or auto sense Default auto sense e Data communication rate Range 1 2 2 4 4 8 9 6 19 2 38 4 and 57 6 Kbps Default 9 6 Kbps e Delay Range 0 75 ms 10 ms default e Data Format 8 data bits 1 stop bit no parity odd parity or even parity Default no parity e Node address Range 1 247 default is the same value as the unit ID listed on the nameplate e Inter character timeout Range 0 6553 ms Default 0 3 5 character times e Error checking CRC default BCC The Delay parameter is the time the pow
8. Software TIP The DeviceNet network is an open standard multi vendor l communication network Although other vendors offer DeviceNet configuration tools all examples in this manual will depict the use of Rockwell Software RSNetWorx for DeviceNet software 1 Launch RSNetWorx for DeviceNet software At this point the DeviceNet scanner module does not know what device to scan 2 Click Online to list the available devices on the network DeviceNet RSNetWorx for DeviceNet m x Fle Edt View Network Device Tools Help a s a 6 s rel ealt Ela whe Hardware P DeviceNet g Category AC Drive Barcode Scanner Commurication Adapter DeviceNet to SCANpext Dodge EZLINK General Purpose Discrete 1 0 Generic Device Human Machine Interface Inductive Proximity Switch Limit Switch Photoelectric Sensor Rockwell Automation miscellaneous a Rockwell Automation Allen Bradley 7 Rockwell Automation Dodge a Rockwell Automation Electro Craft Motion Control 3 Rockwell Automation Reliance Electric Toggle the online state of the network Publication 1404 UM001F EN P November 2009 73 Chapter4 Communication The available networks are displayed Browse for network Ethernet aes N amp s AB_ETH 1 Ethemet 3 Click the network The network devices are displayed DeviceNet RSNetWorx for DeviceNet PRAEPAHGSHE GAO Daea a 74 i DeviceNet to SCANport Dodge EZL
9. a contiguous portion down to a single element may be read except for remote I O and DeviceNet optional communication which require that an entire table be read e The target data location should match the size and data type of the data requested You may use simple reads to obtain basic metering data configuration data date and time and the contents of the user configured data table Simple Data Table Read Flow Diagram Programmable Controller Powermonitor 3000 Data Client Data Server Source Address oe Starting Element Data Length Target Address Sa re al Source Table Target Location Publication 1404 UM001F EN P November 2009 87 Chapter 4 88 Communication Indexed Reads of Large Data Structures Large data structures that require indexed reads are most often read into a computer based application that performs further processing of the data The power monitor parses logs oscillograms harmonic analysis results setpoint status results and other large data structures into individual records to be read by the client and reassembled into the original data structure You may select one of two modes for indexed table reads e Auto Increment the power monitor automatically points to the next record following each read of the specified results table e Manual Increment the client specifies a record to be read during the next read of the results table by performing a write to the appl
10. also lost 1 0 Connection Setup Module Properties ENET ETHERNET MODULE 1 1 x Type ETHERNET MODULE Generic Ethernet Module Vendor Allen Bradley Parent ENET ame My_PM3000 m Connection Parameters Assembly z Description Example of Class 1 connection Instance ps setup Input poo fe a 16 bit a Output 2 2 6w Comm Format Data INT x Configuration 3 q a 8 bit Address Host Name z Gan IP Address 128 1 1 13 Status Input Host Name Status Output Cancel Back Next gt Finish gt gt Help 4 Select Data INT as the Communication Format 5 Enter the IP address of the power monitor 6 Set the Connection Parameters as shown for the default configuration If you change the configuration of the input assembly instance enter its new size in Instance 1 here 110 Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 7 Select 3 as the Configuration instance and leave its Size set to 0 bytes and click the Next 8 Set the Requested Packet Interval to 100 ms or greater The power monitor does not respond reliably to an RPI of less than 100 ms Requested Packet Interval Setup Module Properties ENET ETHERNET MODULE 1 1 The power monitor data is found in controller tags Power Monitor I 0 Tags 111 Chapter 4 112 Communication Powermonitor 3000 Web Access You m
11. integer or 14 floating point parameters through a table write to assembly instance 35 Refer to User configured 1 0 on page 122 If you change the size of the input table you must also re map the inputs into the DeviceNet scanner by using RSNetworx for DeviceNet software Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Polled I O messaging can automatically provide fresh data at update rates as fast as 100 ms The power monitor supports both Every Scan and Background polled messaging You select the poll type and polling rate by using RSNetworx for DeviceNet software e Every Scan Polls the power monitor once per scan Set the Interscan Delay to at least 100 ms An Interscan Delay of less than 100 ms slows the power monitor s delivery of metering information e Background Polls the power monitor at intervals you specify by using the Foreground to Background Poll Ratio So long as the power monitor is polled no more frequently than every 100 ms it operates and communicate at its optimal rate You may calculate the total scan time with this formula Total Scan Time 1 R e D Where R Foreground to Background Poll Ratio D Interscan Delay Change of State I O messaging COS reports data only when the content of the I O table changes COS messaging can be more efficient for discrete applications because it tends to reduce the network traffic If you have configured the input message table to include me
12. most often used as a scanner address and 64 enables remotely settable node addressing as described above You must also configure each device with the correct baud rate for the network The DeviceNet network must be designed within its recognized design limitations of baud rate trunk line length drop line budget and common mode voltage drop for correct operation n Chapter 4 72 Communication TIP Some legacy power monitor units with optional DeviceNet communication do no support remotely settable node addressing AutoBaud or Program Baud You can check whether your power monitor supports these functions by viewing the Optional Communication Card status by using your display module Communication type 81 does not support these functions type 88 does You may also view this status item by a read of assembly instance 23 element 25 Optional DeviceNet Communication Configuration Summary Parameter Description Range Default User Setting Node DeviceNet node 0 64 decimal 63 Address number MAC ID Baud Rate DeviceNet 0 125 Kbps 0 125 Kbps Communication 1 250 Kbps Rate 2 500 Kbps 3 Autobaud 4 Program Baud Bus off Specifies response 0 Hold CAN 0 Hold in Reset Interrupt to a CAN bus off chip in reset interrupt 1 Reset CAN chip and continue Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Configure the Powermonitor 3000 Unit by using RSNetworx for DeviceNet
13. none Parity 8 1 even 8 1 odd Inter Character Mimimum delay 0 6553ms 0 3 5 Timeout between characters that character times indicates end of Modbus message packet Error Checking BCC CRC CRC Optional RS 232 Communication Powermonitor 3000 units with a catalog number ending in 232 are equipped with an optional RS 232 serial port in addition to the native port These units are set up at the factory to auto sense the protocol used by the initiator or master device on the network The configuration parameters are the same as the native RS 485 port with the following exception e Flow Control Enables or disables hardware handshaking Default disabled 65 Chapter 4 66 Communication The RS 232 communication standard supports point to point communication between TWO stations or nodes with a maximum cable length of 15 24 m 50 0 ft You may not use the optional RS 232 port and the native RS 485 port at the same time Optional RS 232 Communication Configuration Summary Parameter Description Range Default User Setting Port Select active serial port RS 232 RS 232 RS 485 Protocol DF1 Full duplex Auto Sense DF1 Half duplex Slave Modbus RTU Slave Auto Sense Delay Time between receivinga 0 75 ms 10 ms request and transmitting a response Communication RS 485 port 1 2 Kbps 9600 baud Rate communication bit rate 2 4 Kbps 4 8 Kbps 9 6 Kbps 19 2 Kbps 38 4 Kbps
14. outside of the legal range as shown in Appendix A error code 5 occurs For function code 03 04 and 16 if any undefined starting address is sent to the power monitor exception code 2 is returned and error code 6 occurs If the starting addresses other than the first Modbus address of the data tables are sent to the slave with function code 16 this error code also occurs For function codes 03 and 04 the starting address may be any address within the data table However for floating point data tables one element occupies two Modbus addresses Therefore only odd Modbus address are allowed when accessing floating point data table If the starting address is even error code 7 occurs The Controller Command table is the only one table that has write only attribute If you try to use function code 03 to read this table error code 8 occurs and a 02 exception response packet is returned Auto sense Protocol Selection The primary purpose for auto sense is to permit configuration by using RSPower or RSPowerPlus software on a point to point RS 485 connection by disabling the Modbus master station and enabling a DF 1 connection with RSLinx software The port switches back to the Modbus protocol when it detects incoming Modbus data packets Simultaneous use of Modbus and DF 1 master stations on the same network is not permitted or supported When auto sense is selected when a port configured as Modbus detects incoming DF 1 data packets it
15. table PLC 5 xxE Controller Message Detail Screen Example MSG Rung 2 0 MG9 0 5 x This PLO S Control Bits Communication Command Ignore if imed out TO 0 Data Table Address To be retried NRI 0 Size in Elements Awaiting Execution EW 0 Port Number Continuous Run CO 0 Enor ER 0 Target Device Message done ON 0 Data Table Address Message Transmitting ST 0 MultiHop Message Enabled EN 0 m Error Error Code Hex 0 Error Description No errors 106 Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 When you select Yes in the MultiHop field the MultiHop tab appears in the dialog Enter the IP address of the power monitor in the 1756 ENET I P field 192 168 4 49 is used here as an example and any integer in the 1756 backplane Slot field PLC 5 xxE Controller MultiHop Configuration MSG Rung 2 0 MG9 0 Jof x Ins Add Hop Del Remove Hop This PLCS TEENE IP str 192 168 4 49 ControlLogix Backplane MA 1756 Backplane Slot dec 1 The example below shows the MultiHop configuration for messaging from a PLC 5 xxC ControlNet processor through a ControlLogix Gateway to an Ethernet power monitor PLC 5 xxC Controller via ControlLogix Gateway MultiHop Configuration 4 MSG Rung 2 0 MG9 0 Ins Add Hop Del Remove Hop ae i dec e Habits Backpl
16. 0 2 kWh reverse kVARh reverse 100 4 kVAh kAh 111 7 All All You may select the value at which the energy counters roll over to 0 in the Advanced Device Configuration table Publication 1404 UM001F EN P November 2009 Communication Chapter 4 User configured Data Table If your application requires monitoring a small number of parameters normally found in different data tables and you need to conserve communication bandwidth then the power monitor user configured data table may be an ideal solution To use this table your data client application performs a write to the User configured Table Setup table containing the desired parameters that you select from the Parameters for Trend Log and Configurable Table To read the user configured table perform a table read of the User configured Table Results The user configured table setup includes the following elements e Password needed to change the configuration e Table identifier a number that identifies the results table For DF1 Ethernet CSP and Ethernet PCCC CSP this is file number 31 for Remote I O file number BT length 62 for EtherNet IP DeviceNet and ControlNet networks instance 37 or 1 see the User configured I O table e Parameter selections from the Parameters for Trend Log and Configurable Table The first zero ends the list of parameters The User configured Table Results table returns 14 elements DeviceNet units or 23 elements all other c
17. 767 The data client may use the record identifier to associate records in different data tables or to ensure that subsequent reads contain fresh data e DeviceNet unique write identifier The DeviceNet communication port on Powermonitor 3000 models with optional DeviceNet communicaitons discards duplicate identical messages For that reason read back selection tables include a DeviceNet unique write identifier element The data client changes usually increments the value of this element each time it writes an otherwise identical message Writing Data to Data Tables The power monitor contains a number of writeable data tables These tables have read write access so a client may read their current content or write new content Publication 1404 UM001F EN P November 2009 83 Chapter 4 Communication 84 A valid write to a data table must meet the following general criteria e The length of the source data array must equal the data table length Note that the same data table may have a different length in various power monitor models e The entire data table must be written in one pass e The first element in the source data array must generally contain the correct password or a value of 1 for read back data selection e The source and destination data type must match for example floating point or integer e Each element of the source data array must be within the legal range listed in the data table specificat
18. Chapter 4 Configuring Communication Publication 1404 UM001F EN P November 2009 Communication The communication features of the Powermonitor 3000 unit make it uniquely suited to integrate electric power usage information into your industrial control and information systems Every power monitor is equipped with a native RS 485 communication port and you can select optional communication that facilitate seamless integration with a variety of industrial networks The optional communication choices include the following e Serial an RS 232 communication port e Remote I O allows you to connect your power monitor as a quarter rack to any remote I O scanner device e DeviceNet a port with standard DeviceNet functionality lets your power monitor integrate into an open standard multi vendor architecture e Ethernet a standard 10BaseT port allowing easy integration into factory floor and office information systems e ControlNet with NAP port and two BNC connectors for connection to single or redundant media applications This chapter covers configuration and operation of the native and optional communication ports Refer to the Installation Instructions publication 1404 IN007 for installation wiring and connection instructions The display module is the recommended way to configure communication on your power monitor The display module includes setup menus for native and optional communication If you need to review
19. INK General Purpose Discrete 1 0 Genetic Device Human Machine Interface Inductive Proximity Switch Limit Switch Photoelectric Sensor Rockwell Automation miscellaneous Rockwell Automation Electro Craft Motion Control Rockwell Automation Reliance Electric Publication 1404 UMO001F EN P November 2009 Communication Chapter 4 4 Read the scanner s configuration Right click on the DeviceNet scanner icon and upload the scanner s present configuration DeviceNet RSNetWorx for DeviceNet eviceNet General Purpose Discrete 1 0 Generic Device Human Machine Interface Inductive Proximity Switch Limit Switch Photoelectric Sensor Rockwell Automation miscellaneous SCANport Adapter endor Rockwell Automation Allen Bradley Rockwell Automation Dodge Rockwell Automation Electio Craft Motion Control Rockwell Automation Reliance Electric CRC ROR ROR CR ROR RCRORCECEORCL MORONS MOONEE ONE EH ENO 5 Edit the Scanner List The DeviceNet scanner needs to know how the information is coming from the Powermonitor 3000 unit Select the Scan List tab and move the power monitor into the Scanlist set B 1747 SDN Scanner Module 3 6 Edit the Data Table Map Publication 1404 UM001F EN P November 2009 75 Chapter4 Communication The DeviceNet scanner needs to know which bytes are scanned from the power monitor Select the Input tab This lets you determine where the information is
20. Parameters on page 210 for additional detail Integer exponent format is used for some specific table entries such as IEEE 519 short circuit current The integer element is in the range of 0 999 or 9999 and a typical exponent element ranges from 4 21 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Timestamp format The power monitor expresses timestamps in an array of four data table elements Year Month Day Hour Minute Second Hundredth of a second Each timestamp parameter except the Year is a combination of its first and second element For instance the Month is the parameter value divided by 100 and the remainder is the Day Example 1230 December 30th The timestamp data type may be integer or floating point and depends on the data table Other Common Data Table Elements The power monitor uses several common data table elements in a number of data tables These include e Password A valid password must be written to change configuration settings or issue commands For selecting records to read back you may write either a valid password or a value of 1 Default 0000 range 0000 9999 e Record identifier The power monitor assigns event log records oscillography and transient captures and other items unique identification numbers These numbers typically begin at 0 increment by 1 each time a new record is created and roll over to 0 once they reach their maximum value typically 32
21. Rate Sets the communication rate Range 57 6 115 or 230 Kbps default 57 6 All devices on the channel must be set to the same communication rate TIP For a logical rack address of 63 decimal do not use group number 2 4 or 6 Power monitor logical rack addresses are expressed in decimal You may need to convert addresses to octal range 0 77 for some PLC applications Optional Remote 1 0 Port Configuration Summary Parameter Description Range Default User Setting RIO Rack Logical rack address 0 63 decimal 1 Address as configured in the scanner RIO Group Logical group number 0 13t quarter 0 1 quarter Number of quarter rack 9 pnd quarter 4 3 quarter 6 4 quarter RIO Last Rack Indicates 0 No 0 No highest numbered 1 Yes logical rack group address PLC 2 based systems only RIO Specifies the remote 0 57 6 Kbps 0 57 6 Kbps Communication 1 0 communication 1 115 Kbps Rate rate 2 230 Kbps Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Publication 1404 UM001F EN P November 2009 Optional DeviceNet Communication Powermonitor 3000 units with a catalog number ending in DNT are equipped with an optional DeviceNet communication port in addition to the native port Both may operate at the same time You must configure the DeviceNet communication parameters before you connect the power monitor to a DeviceNet network The DeviceNet configuration parameter
22. ane Nia 1756 Backplane Slot dec 1756 ENET N A LLP Address str 192 1 Sin You may choose between two types of ControlLogix controller to power monitor messaging e PLC 5 Typed read or write that encapsulates a PCCC message within a CIP wrapper e CIP Generic messaging which uses the CIP class instance attribute object model common to DeviceNet network 107 Chapter4 Communication Set up the Communication tab in the ControlLogix message instruction the same for each messaging type ControlLogix Controller to Powermonitor 3000 Unit Communication Tab Example Message Configuration msgPM3K_VI ENET IP Bridge 2 130 151 71 Pragai E Destrrauan Litt A el saie Fir Destination IW GGe ache lonnecions The first example below reads the Voltage and Current table from a power monitor into the ControlLogix controller tag dataPM3K_VI O by using a PLC 5 Typed Read configured as an array of 14 elements of type Real You would configure a CIP Data Table Read the same way except for the message type ControlLogix PLC 5 Controller Typed Read Example Message Configuration msgPM3K_ I Communication Tag PLCS Typed Read m Z dataPM 3k_ I F 108 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 The next example shows the message configuration for a CIP Generic message type A CIP Generic message can read or write data depending on the Service Type you specify
23. automatically switches to the applicable DF 1 protocol at the same baud rate and other communication parameters The port may return a communication error to the first non selected packet and then switch protocols The initiator should be set up to retry communication if it receives an error Publication 1404 UM001F EN P November 2009 95 Chapter 4 96 Communication DeviceNet Communication Option The Powermonitor 3000 units with optional DeviceNet communication operate as a slave device on a DeviceNet network It serves data to a DeviceNet master station such as a PLC 5 or SLC 500 DeviceNet scanner module a ControlLogix DeviceNet bridge module a PanelView operator terminal and RSLinx direct and pass thru DeviceNet drivers It supports I O implicit Messaging Explicit Server Messaging and the explicit Unconnected Message Manager UCMM as discussed below 1 0 Messaging The power monitor supports polled change of state and cyclic I O messaging by using assembly instances 1 for input data and 2 for output data The default input messaging table size is 6 integer elements and the output table size is 2 integer elements This corresponds to a DeviceNet scanner mapping of 12 Rx and 4 Tx bytes See the Remote I O DeviceNet EtherNet IP and ControlNet I O Messaging Parameters table on page 191 for the contents of the default I O messaging tables TIP You may reconfigure the input messaging table instance 1 by selecting up to 23
24. ay view a number of data tables by simply pointing your web browser to the IP address of your power monitor from a computer with access to the unit s subnet Example http 192 1 1 207 On the left side of the web page is a list of data table that you may view Each list entry is a hyperlink that takes you to the selected table with a single mouse click Each table appears as a tabular display with value descriptions and values To return to the main page click Refresh on your browser Powermonitor 3000 Web Page Rockwell Automation Aten bradtey Powermonitor 3000 Ethernet Address 00 00 BC 08 0B 9B ASA Serial 20039964 M IP Address 130 151 70 17 Netmask 255 25500 Gateway IP Address Not Set o Koop Alive Time 30 Seconds Management Setetions Unit ID 123 baraman sorn Enet Application FRN 1 03 Enet Boot Code FRN 104 Additional Ethernet Information The power monitor utilizes the following fixed Ethernet port numbers e HTML Port 80 e CSP Port 2222 e CIP Port 44818 e Modbus TCP TCP port 502 ControlNet Communication Option Powermonitor 3000 ControlNet units support a Class 1 connection to Instance 1 and 2 1 To utilize this scheduled connection to a ControlLogix controller open the controller program offline in RSLogix 5000 software 2 Select the ControlNet bridge module 1756 CNB or 1756 CNBR in the I O configuration Publication 1404 UM001F EN P November 2009 Communicat
25. e NetID and each 0 represents the HostID Here is an example IP Address decimal 192 1 J 207 binary 11000000 00000001 00000001 11001111 Subnet decimal 255 255 255 0 Mask binary 11111111 11111111 11111111 00000000 Net ID ooo Host ID Publication 1404 UM001F EN P November 2009 Communication Chapter 4 In this example the NetID is 192 1 1 0 and the HostID is 0 0 0 207 The relationship between NetID and HostID depends on the IP address class the discussion of which is beyond the scope of this document the example uses a Class C IP address Devices on the same subnet can communicate directly devices on different subnets may communication with each other only through a gateway or router The Gateway IP Address defines the address of the gateway or router on the unit s subnet that is used to route messages to other subnets for wide area networking Default 128 1 1 1 Optional Ethernet Communication Parameter Description Range Default User Setting IP Address Unit IP address in format 0 255 192 168 254 UnitlD Bytes 1 4 aaa bbb ccc ddd decimal each byte Subnet Subnet mask in format 0 255 255 255 255 0 Mask Bytes aaa bbb ccc ddd decimal each 1 4 byte Gateway IP Gateway IP address in 0 255 128 1 1 1 Address format aaa bbb ccc ddd decimal each Bytes 1 4 byte Optional ControlNet Communication Powermonitor 3000 units with a catalog number ending in CNT are equ
26. enable single element writes e The source and destination data type and length must match for example floating point or integer 4 bytes or 2 bytes e The source data element must be within the legal range listed in the data table specification e Reserved elements may not be written e For DeviceNet optional communication only each consecutive write must be unique e After 30 minutes without a write single element writes will be disabled You may read the Write Error Status table after writing an element to verify that the write was valid and accepted by the power monitor If there was an error in the last write the Write Error Status indicates the CSP file or assembly instance DeviceNet network only number and the offending element number You may write data to any writeable data table element in the power monitor Single Element Write Flow Diagram Panelview Terminal Powermonitor 3000 Data Client Data Server Qa a E Valid password 7 ement 1 m N60 0 1 Data Addr 1 2 Data we Addr 2 3 w Addr 3 4 w Addr 4 Cz Aur Pas ay e Daa Se peer oS able n po S T TTE Da Write error status Optional verification Source Elements Target Elements p after each element write 86 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Simple Reads of Data Tables The following considerations apply to simple power monitor data table reads e An entire data table or
27. ents Notice that under target device that power monitor data table F10 Basic Configuration was selected The Local Node Address is the address of the power monitor Controlnet Node Address 4 The information to write was loaded into file F12 0 of the SLC controller and is 9 elements long Communicating to a Powermonitor 3000 Unit from a PLC 5 ControlNet Processor The power monitor is capable of communicating over ControlNet by using PLC 5 typed reads and writes When using ladder to communicate unscheduled messages to and from the power monitor the following example applies Publication 1404 UM001F EN P November 2009 117 Chapter4 Communication Create a PLC 5 Typed Read You can message integer and float files to and from the power monitor using PLC 5 typed message instructions by using the following steps Insert a MSG Instruction to the ladder rung and assign a control MSG Read Write Message Control MG 0 Setup Screen This example reads the Voltage Current and Frequency table File F15 from the power monitor MSG MG9 100 1 Elements Notice that when using an unscheduled message directly to the power monitor in this case node 4 that the message format is local multi hop selection is no 118 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Create a PLC 5 Typed Writes The following selection performs a write operation to the basic configuration table F10 of the power monit
28. er monitor waits before its response to an external request Certain communication equipment requires such a delay for reliable operation With a half duplex protocol selected you may connect your power monitor into a multi drop RS 485 network with up to 32 nodes You must use a device configured as a master to communicate with this port All devices on the RS 485 network must be set at the same data rate With the DF1 full duplex protocol selected the power monitor communicates with another DF1 full duplex initiator device over a point to point link TIP The native communication port does not support Data Highway 485 DH 485 communication Although DH 485 uses the RS 485 physical media its protocol is not compatible with the DF1 protocol Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Native Communication Configuration Summary Parameter Description Range Default User Setting Protocol DF1 Auto Sense Full duplex DF1 Half duplex Slave Modbus RTU Slave Auto Sense Delay Time between receiving 0 75ms 10 ms a request and transmitting a response Communication RS 485 port 1 2 Kbps 9600 baud Rate communication bit rate 2 4 Kbps 4 8 Kbps 9 6 Kbps 19 2 Kbps 38 4 Kbps 57 6 Kbps RS 485 Address Uniquely identifies the 1 247 Unit ID number Powermonitor device on a multi drop network Data Format Data bits Stop bits 8 1 none 8 1
29. et software to schedule the connection between the controller and the power monitor Refer to the RSNetWorx for ControlNet documentation for assistance The ControlNet power monitor supports up to 64 concurrent Class 1 connections to instance 1 and one concurrent connection to instance 2 114 Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Communicating to a Powermonitor 3000 Unit from an SLC Controller through 1747 KFC15 ControlNet Module Connect the 1747 KFC15 module according to your instruction manual documentation There should be a connection from the KFC15 RS232 port to Channel 0 of the SLC controller For this example the communication and configuration of the channel 0 and the KFC15 module were the following e KFC15 DF1 station address 7 e KFC15 and SLC baud rate at 19200 e KFC15 and SLC Full duplex e KFC15 and SLC Parity None e KFC15 and SLC Handshaking None e KFC15 Diagnostic Command Execution Disabled e KFC15 Duplicate detect Off e KFC15 and SLC Error Detect CRC e KFC15 Number of Retries 3 e KFC15 DF1 ACK Time Out 3 2 Since it is easier to configure and much faster to run full duplex mode is the preferred mode of operation Use half duplex mode only if you do not have a choice TIP Reading Files From the Power Monitor Both integer and float files can be read from the power monitor This example reads t
30. evice on a Modbus network is not assigned an address Modbus messages are always initiated by the master The slave nodes never transmit data without receiving a request from the master node The slave nodes never communicate with each other The master node initiates only one Modbus transaction at a time The power monitor supports Modbus RTU the version of Modbus applied to serial communication in which each byte of data consists of two hexadecimal values Modbus ASCII Modbus Plus and Modbus TCP are not supported Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 The power monitor does not initiate Modbus commands but responds to commands sent by the Modbus master The following Modbus function codes are supported e 03 Read Holding Registers e 04 Read Input Registers e 16 Write Multiple Holding Registers e 08 Diagnostics 00 Echo Command Data 02 Return Diagnostic Counters 10 Clear Diagnostic Counters e 06 Write Single Holding Register Function 06 16 and the sub function 10 of function 08 support Broadcast packets Refer to Appendix A for Modbus addresses of the power monitor data tables The power monitor supports zero based addressing The address ranges are arranged as follows note that not all addresses in the range are used e 30 001 40 000 Modbus Input Register Analog Input Address Space e 40 001 50 000 Modbus Holding Register
31. figure device features set the date and time reset or preset energy counters and select records for subsequent reads e Single Element Writes Beginning with version 4 master module firmware a client may enable single element writes by writing a valid password to the Single Element Password Write table Single element writes are disabled again after 30 minutes of inactivity e Simple Data Reads A client may read metering or configuration data The client may read an entire data table or any number of consecutive data elements up to the table boundary e Indexed Data Reads The power monitor parses large data structures such as logs oscillograms harmonics and transient captures into data blocks records and or channels These records are transferred to an interface table The client selects the read back mode and or record reads the interface table and reassembles the original data structure e I O Type Communication The power monitor supports polled change of state and or cyclical implicit I O messaging depending on the communication options The specific communication setup depends on the communication port type and protocol whether serial Ethernet or others as well as the type of device controlling the communication The following sections provide more detail Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Powermonitor 3000 Unit Data Table Attrib
32. he Date and Time table Floats can be read by using this same process but destination file should be of type float 1 Select a PLC 5 controller for your Target Device Local Network and Control Block Date and Time Message Read Read Write Message Type Peer To Peer Read Write Local Remote Control Block Control Block Length Setup Screen 115 Chapter 4 116 Communication 2 Fill out the Setup dialog as shown F MSG N7 0 14 Elements Notice that under target device that power monitor data table N11 Date and Time was selected The Local Node Address is the address of the power monitor Controlnet Node Address 4 Writing Files to the Power Monitor Writing data to the power monitor is done with the same method It is recommended that 1 integer file and 1 float file be set aside in the SLC controller for use when writing to the power monitor Data to be written to the power monitor is loaded in one of these files according to data type before the transaction is started The following example writes data to the power monitor 1 Select PLC5 for your Target Device Local Network and Control Block MSG Read Write Message Type Peer To Peer Read Write Write Target Device PLCS Local Remote Local Control Block N7 42 Control Block Length 14 Setup Screen Publication 1404 UM001F EN P November 2009 Communication Chapter 4 2 Fill out the Setup dialog as shown MSG N7 42 14 Elem
33. his attribute determines whether you may configure the content and or length of the data table 81 Chapter 4 82 Communication Let s look at the Date and Time table as an example e CSP file number N11 e Remote I O BT length 12 e CIP assembly instance 6 Write or 7 Read e Data table name Date and Time e Data access Read write e Number of elements 8 e Data type Integer e User configurable No The power monitor data tables are listed in Appendix A The table on page 188 shows a summary of all the data tables Expressing Data in Data Tables The power monitor may express metering data in several formats in the communication data tables Floating point data type is used to express most metering results The trend log min max log and the user defined data table also return values in floating point format The power monitor uses the IEEE 754 32 bit floating point format that is compatible with Allen Bradley PLC 5 and SLC 500 controllers Modbus float data type returns IEEE 754 floating point values in a big endian two register array Integer data type 16 bit is used in most configuration data tables and some results data tables Integer array format is used to express real reactive and apparent energy results Each of these values is expressed as an array of five integer values each scaled by a different power of ten 10 10 10 10 10 Refer to Metering Real and Apparent Energy Results
34. icable read back select table IMPORTANT oe communication option supports only manual increment The client selects the read back mode by writing to the Read back Mode element in the appropriate read back select table The Auto increment mode provides the highest data throughput In Manual Increment mode the client must alternate writes of the read back select table with reads of the read back table The Indexed Data Read Manual Mode Flow Diagram shows the flow of alternating writes and reads required for the Manual Increment mode e First the client writes to the appropriate read back select table to identify the desired data block record or channel For selecting a read back record the client may write either a valid password or a value of 1 to the password element in the read back select table e After a short time delay the client reads the results table verifies that it is the desired record and adds it into the target data structure e The client repeats steps 1 and 2 until all the desired data is read Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Indexed Data Read Manual Mode Flow Diagram Personal Computer Application Powermonitor 3000 Data Client Data Server Large data structure e g log oscillogram etc Password or 1 Element 0 Readback select controls index pointer to large data structure Segment or Channel 1 Data selects Segment 3
35. ication Powermonitor 3000 units with a catalog number ending in ENT are equipped with an optional Ethernet 10 100BaseT communication port and a native RS 485 port in a dual port configuration that allows simultaneous operation of the ports You must configure the communication parameters before you connect your power monitor to an Ethernet network See your network administrator for assistance in setting the communication options Configuration parameters include the following e IP Internet Protocol address e Subnet Mask e Gateway IP address The IP Address uniquely identifies your Powermonitor 3000 unit on the network You configure the unit s IP address the way it is most commonly expressed as four decimal numbers connected by decimal points aaa bbb ccc ddd You may set each number also called byte or octet within the range of 0 255 decimal The default IP address is 192 168 254x where x is the factory assigned Unit ID number An IP address of 255 255 255 255 is not permitted IMPORTANT The IP address for your power monitor must not conflict with the IP address of any other device on the network Contact your network administrator to obtain a unique IP address for your unit The IP address is a 32 bit binary number which consists of the network address NetID and the machine address HostID The Subnet Mask defines the boundary between the NetID and HostID in the IP address Each 1 bit in the subnet mask represents th
36. ices Device Name AB_DF1 1 Comm Port com 7 Device EmA EEE Baud Rate 19200 x Station Number 99 Decimal Parity None 7 Eror Checking BCC oF Stop Bits fi Protocol Ful Duplex Auto Configure I Use Modem Dialer Configure Dialer Carosi __Delte He 4 Click Auto Configure to start the process The configuration returns with the following message This message can be disregarded Recognition of the device is provided after exiting the auto configuration routine x AutoConfiguration appears to have succeeded however RSLinx has failed to identify the device 5 Click OK and disregard this message x A STA DS TYPE 34 TERM 36 PROC 84 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 The successful configuration of DF1 full duplex should look like this Configure RS 232 DF1 Devices E Device Name AB_DF1 1 Comm Port com gt Device SLC CHO Micro PaneNView Baud Rate 9600 gt Station Number op Decimal Parity None Error Checking crc Stop Bits i H Protocol Full Duplex 7 i Configuration Successfull I Use Modem Dialer Configure Dialer OK Cancel Delete Help 6 Return to the main browsing window of the RSLinx application and browse to the DF1 Driver for the Powermonitor 3000 unit The result is an established communication link bet
37. ion e Reserved elements must be the correct value usually 0 e For DeviceNet optional communication only each consecutive write must be unique You may read the Write Error Status table after writing to a data table to verify that the write was valid and accepted by the power monitor If there was an error in the last write the Write Error Status indicates the CSP file or assembly instance DeviceNet network only number and the offending element number You may write data to the power monitor for basic and advanced device configuration to set the time and date to set up setpoints logs oscillography and transient analysis and to select records to be read back from indexed data reads such as harmonics oscillography and logs Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Publication 1404 UM001F EN P November 2009 Data Table Write Flow Diagram Programmable Controller Data Client Source Location Initiates Data Read Data Powermonitor 3000 Data Server Element 0 1 2 3 4 5 n Target Table Element 0 1 Data Element 0 1 Table 31 Write error status Optional verification 85 Chapter4 Communication Single Element Data Writes A single element write to a data table must meet the following general criteria e A valid password is written to Table 60 element 0 to
38. ion Chapter 4 3 Add the power monitor as a Generic ControlNet module Typical ControlNet Configuration Module Properties Cnet CONTROLNET MODULE 1 1 ControlNet Powermonitor 3000 a ha pasm x 4 Select Data INT as the Communication Format A Enter the ControlNet address of the power monitor 6 Set the Connection Parameters as shown for the default configuration If you change the configuration of the input assembly instance enter its new size in Instance 1 here 7 Select 3 as the Configuration instance and leave its Size set to 0 bytes and click Next 8 Set the Requested Packet Interval to a binary multiple of the network update time NUT greater than 100 ms The power monitor update rate is typically 100 ms Requested Packet Module Properties Cnet CONTROLNET MODULE 1 1 m The power monitor data is found in controller tags Publication 1404 UM001F EN P November 2009 113 Chapter4 Communication Controller Tags os Decimal INTE PM3K_CNT 1 Data 0 0 Decimal INT EL PM3K_CNT 1 Data 1 0 Decimal INT PM3K_CNT L Datal2 0 Decimal INT PM3K_CNT 1 Dataf3 o Decimal INT PM3K_CNT I Datal o Decimal INT HH PM3K_CNT 1 D ata 5 0 Decimal INT PM3K_CNT 0 E w AB CONTROLNE PM3K_CNT C JE E AB CONTROLNE 9 Download the revised program to the controller 10 Run RSNetworx for ControlN
39. ipped with an optional redundant ControlNet port and a native RS 485 port in a dual port configuration that allows simultaneous operation of the ports You must configure the communication parameters before you connect the power monitor to a ControlNet network The only configuration parameter is the ControlNet node number also called MAC ID The range of this parameter is 1 99 with a default of 99 A node number of 0 is typically used as the address of a ControlNet scanner Publication 1404 UM001F EN P November 2009 79 Chapter4 Communication Data Messaging Overview 80 Through communication the power monitor becomes an effective source of power and energy data to enterprise information and automation systems This section of the manual provides an overview of data messaging with the power monitor Following the overview discussions will focus on the details of messaging using specific communication types for example serial remote I O DeviceNet and Ethernet The power monitor is a read write data server It does not initiate data messages but responds to messages from client devices Its data is organized in data tables similar to those found in a SLC 5 03 programmable controller The primary methods to communicate with a power monitor include the following e Table Writes A client may write a table of data to the power monitor Generally only full data tables may be written Data writes may be performed to con
40. mand is the wrong size 3 Length 4 Bad Length The function attempted to read write past 3 the end of a data file 5 Bad Parameter The function cannot be executed with 3 these parameters 6 Bad Table The table number does not exist 2 Number 7 Bad Modbus The function attempted to access an 3 Address invalid Modbus address 8 Table Write The function attempted to write to a 3 Protected read only table 9 Table Access Access to this table is not granted 2 Denied If a client device requests too large a data size the power monitor returns the requested data padded with zeroes up to the requested data size rather than returning an error When the User configured Table Setup table is used together with Modbus the value for element 1 should be 1000 The value for element 0 of the Write Error Status table is the first Modbus address of data table written to last For function code 03 04 and 16 the number of words of user data is limited to 100 If it is over 100 exception code 3 will be returned to the master and error code 3 occurs Publication 1404 UM001F EN P November 2009 Communication Chapter 4 For function code 16 if the data length is larger or less than the element number of the data table accessed error code 4 occurs It means the data length for function code 16 should be strictly the same as the size of the accessed data table If the data written to the power monitor by using function code 16 is
41. mple in this section uses an Allen Bradley SLC 500 controller and DeviceNet Scanner 1747 SDN as the master Refer to the DeviceNet Scanner Module Installation Instructions publication 1747 IN058 for a detailed description of explicit message programming in the SLC 500 controller Please refer to the Rockwell Automation KnowledgeBase for other examples of explicit messaging to a Powermonitor 3000 unit In the SLC 500 and PLC 5 controllers you assemble the explicit message header in an integer file and transfer it to the scanner module When the response is received you transfer the response from the scanner to another integer file The message header consists of 6 words organized as follows Explicit Messaging Message Word High byte Low byte Header 0 Transmit ID Command 1 Port Size 2 Service MAC ID Body 3 Class 4 Instance 5 Attribute 6 Data to write if applicable 7 n Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Word 0 contains a transmit identifier TXID and command byte Assign each explicit message a unique TXID in the range of 0 255 decimal 0 to FF hex The TXID is used to identify the response to this message request These are valid command codes e 1 hex Execute transaction block Use this command first to start the explicit message e 4 hex Delete transaction from response queue Use this command afte
42. og below the SLC 500 controller is reading the Power table F17 0 from a power monitor with IP address 192 1 1 207 SLC 5 05 Controller to Power Monitor Message Detail Screen Example MSG Rung 2 0 N9 0 F17 0 192 1 1 207 If you want to execute a sequence of messages condition each message in the sequence with the previous message s done or error status and include a brief programmed time delay between messages so that each message receives fresh data and the communication port is not overloaded As a starting point program the inter message time delay at 100 ms Publication 1404 UM001F EN P November 2009 105 Chapter4 Communication EtherNet IP CIP Protocol Allen Bradley controllers since the release of the ControlLogix platform have used the EtherNet IP or CIP protocol In particular PLC 5 and SLC 5 05 controllers at or later than the following series and revision levels support CIP communication e PLC 5 xxE Series C Rev N e PLC 5 xxE Series D Rev E e PLC 5 xxE Series E Rev D e SLC 5 05 Series A FRN 5 OS 501 e SLC 5 05 Series C EtherNet IP explicit messaging from a PLC 5E or SLC 5 05 controller to a Powermonitor 3000 unit uses a MultitHop message path The client controller thinks it is communicating with a ControlLogix controller The example message detail screens below indicate a PLC 5xxE reading the voltage and current table F15 0 from a power monitor to the controller s F15 0 data
43. ommunication options containing the parameters you specified You may specify more than 14 elements in DeviceNet units but it will return only 14 The results table data is in floating point format The first zero valued element in the configuration write determines how many meaningful elements are returned in a read of the results table Refer to User configured Data Table Setup by Using ControlLogix and EtherNet IP Networks on page 314 for a sample ladder diagram and messages used to configure and read the user configured data table Optionally you may purchase and use RSPower or RSPowerPlus software to configure and view the configuration of the user configured data and input tables Publication 1404 UM001F EN P November 2009 121 Chapter 4 122 Communication User contigured I O Table You may configure Input Messaging Instance 1 in Powermonitor 3000 units with optional DeviceNet EtherNet IP or ControlNet communication in the same way as the user configured data table above You have one additional option for Instance 1 you may select the data type of Instance 1 as integer 0 or floating point 1 If you change the configuration of Instance 1 an existing Class 1 connection will fault You need to edit the properties of the connection with the parent controller to reflect the new size of Instance 1 TIP Refer to the Rockwell Automation KnowledgeBase http www ab com for additional information on setting up a use
44. oncurrent connections The power monitor supports the following network requests Ethernet Message Types Message type CIP PLC 5 Typed Write CIP PLC 5 Typed Read CIP Generic Assembly Object class 04 Get amp Set Attribute Single for Attribute 3 data CIP Generic Assembly Object class 04 Get Attribute Single for Attribute 3 size CIP SLC 500 Typed Write CIP SLC 500 Typed Read CIP Data Table Read using CSP PCCC addressing for example F15 0 CIP Data Table Write CSP PCCC PLC 5 Typed Write CSP PCCC PLC 5 Typed Read CSP PCCC Protected Typed Logical Read 2 address fields CSP PCCC Protected Typed Logical Read 3 address fields CSP PCCC Protected Typed Logical Write 2 address fields CSP PCCC Protected Typed Logical Write 3 address fields CSP PCCC Word Range Read CSP PCCC Word Range Write CSP PCCC Diagnostic Loopback Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Ethernet PCCC CSP protocol You may set up messaging from legacy controllers such as PLC 5 and SLC 500 controllers to a power monitor with optional Ethernet communication by using peer to peer message instructions In the message setup specify the controller data table address size of the data in elements and the channel the message instruction is to use For the target device power monitor specify its IP address and data table address In the example message setup dial
45. or Insert a MSG Instruction to the ladder rung and assign a control MSG Read Write Message Control MG 0 Setup Screen This example writes configuration to the Basic Configuration table File F10 in the power monitor MSG MG9 0 1 Elements PLC 5 Typed write This message transfers 9 floats from table F8 0 to the power monitor table F10 The power monitor address is at node 4 local message Publication 1404 UMO001F EN P November 2009 119 Chapter 4 120 Communication How to Clear or Preset Energy Counters by Using Communication You may clear or preset the energy counters by performing a table write to the Metering Real and Apparent Energy Results table or the Metering Reactive Energy and Amp hour Results table These read write tables each contain 23 integer elements e Password required to clear or preset an energy counter returns 1 e Parameter select bitfield used to select parameter for clearing or presetting See below e Energy counter values expressed in integer array format see page 82 e Metering iteration increments by 1 with each new set of results rolls to 0 at 32 767 The Parameter select bitfield value selects the parameter or parameters to be cleared or preset during the current write as shown in the table below Parameter Selection Bitfield Value Bitfield Value Parameter Binary Decimal Table 14 Table 15 000 0 001 1 kWh forward kVARh forward 01
46. r configured I O instance Publication 1404 UM001F EN P November 2009
47. r you copy the response from the scanner to remove the response from the scanner and enable further explicit messages Word 1 contains the DeviceNet scanner port number and the transaction body size in bytes The SLC 500 scanner module uses only port 0 a PLC 5 DeviceNet scanner module has two ports 0 and 1 For a read request the transaction body size is 3 words therefore 6 bytes See the Explicit Messaging table on page 98 for more information For a write the body size is the data size in bytes plus the 6 byte path class instance attribute Word 2 contains the DeviceNet service code and the MAC ID or node number of the server device in this case the power monitor Valid service codes for use on Class 4 assembly instances include the following e OE hesx 14 decimal Get_Attribute_Single Requests a read of the entire assembly instance defined in the transaction body e 10 hex 16 decimal Set_Attribute_Single Writes the data contained in the message to the assembly instance defined in the transaction body TIP A convenient way to build Words 0 1 and 2 is to multiply the high byte value by 256 and add the low byte value using decimal values for each parameter Example TXID 121 Command 1 Word 0 121 256 1 30977 Words 3 5 comprise the DeviceNet path Class Instance and Attribute For the power monitor data tables Class 4 Assembly Objects Attribute identifies the data table and Attribute 3 da
48. rotocol selections e CIP This default selection maintains compatibility with prior firmware versions It provides support for CIP generic messaging as well as PCCC encapsulated messaging It must be selected for compatibility with RSEnergyMetrix RSPower and RSPowerPlus software e CSP This optional selection supports legacy client server protocol CSP messaging with older PLC and SLC controllers and certain 3rd party A B Ethernet drivers e CIP CSP This dual stack protocol selection may be used when both third party CSP drivers and CIP messaging are desired This selection is incompatible with RSEnergyMetrix RSPower and RSPowerPlus software The following table summarizes the protocol selection options Publication 1404 UM001F EN P November 2009 103 Chapter 4 Communication Protocol Selection Table Protocol RSLinx Pure CSP Client RSEnergyMetrix Logix and Implicit Connection Type Compatibility 1 and RSPower MicroLogix Messaging Compatibility Compatibility Compatibility B CIP default EtherNet IP No Yes Yes Yes g CSP DF1 CSP Yes No No No g CIP CSP DF1 CSP Yes No Yes Yes 104 In addition to the selectable protocols listed above the Ethernet port supports Modbus TCP beginning with Master Module firmware version 4 and Ethernet firmware version 3 Refer to the description of the Modbus RTU protocol beginning on page 92 for further information The Ethernet port supports up to 64 c
49. s include node address or MAC ID baud rate and bus off interrupt response e Node address Range 0 64 default 63 e Communication Rate Range 125 250 or 500 Kbps fixed rate AutoBaud or Program Baud Default 125 Kbps fixed rate e Bus off Interrupt Specifies the response to a CAN bus off interrupt Remotely settable node addressing node address 64 enables RSNetworx for DeviceNet to configure the node address of the power monitor In addition this allows client devices that support the DeviceNet Offline Connection Set to identify nodes with duplicate addresses and automatically reassign the addresses of the offending nodes AutoBaud allows the power monitor to automatically adjust to the prevailing baud rate of the DeviceNet network Program Baud enables remote baud rate selection With this option selected you may use RSNetworx for DeviceNet to set the power monitor communication rate Any change in communication rate takes place after power is cycled to the power monitor Bus off Interrupt specifies the response of the power monitor to a CAN bus off interrupt The two options are Hold In Reset which stops communication until power is cycled to the power monitor and Reset and Continue which resets communication and attempts to re establish the communication link Default is Hold in Reset You must configure each device on a DeviceNet network with a unique node address Addresses 0 and 64 have special significance 0 is
50. s of input data and Instance 2 contains 2 integer elements of output data You may configure Instance 1 See the Remote I O DeviceNet EtherNet IP and ControlNet I O Messaging Parameters table on page 191 for the content and format of the I O messaging data tables The power monitor supports a number of different communication networks and protocols Each of these has unique characteristics and methods The information in this section is provided to assist you in designing and implementing data messaging with the power monitor by discussing in detail the unique properties of the communication options Refer also to the Sample ladder diagrams in Appendix C Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Serial Communication Options The native RS 485 and optional RS 232 communication ports provide basic serial asynchronous communication capabilities The RS 485 communication standard supports multi drop communication between a master station and up to 31 slaves on a single network up to 1219 m 4000 ft long For satisfactory communication performance however we recommend connecting no more than 8 12 power monitors to an RS 485 multi drop network The optional RS 232 communication port has several configuration settings that support the use of modems for point to point and point to multipoint communication You may select Hardware Handshaking CTS RTS and adjus
51. stored inside the scanner module When finished configuring click Apply E 1747 SDN Scanner Module 3 7 Click Download to Scanner All of the configuration data must be downloaded to the scanner module E 1747 SDN Scanner Module 3 VM Nod v a d Ji 8 Download All Records and allow the scanner to reset 76 Publication 1404 UM001F EN P November 2009 Communication Chapter 4 Download Scanlist from Scanner 21x Selected Scanlist Records Select Range Cancel From p 4 Io 3 Afterwards the DeviceNet scanner displays an 80 followed by a 00 when everything is configured properly TIP Powermonitor 3000 units Input parameters are Instance 1 and output parameters are Instance 2 DeviceNet Single Instance Parameters Powermonitor 3000 units with DeviceNet communication and master module firmware revision 4 x and later include 23 single instance parameters The data type for the single element parameters is little Endian floating point identical to ControlLogix REAL The configurable floating point data format setting has no effect on the single element parameters Refer to Appendix A for a list of parameters included You may use RSNetWorx for DeviceNet to view the parameters and their values You may need to update the DeviceNet power monitor eds files to view parameters Publication 1404 UM001F EN P November 2009 71 Chapter 4 78 Communication Optional Ethernet Commun
52. t the Delay parameter to match your choice of modem hardware Please refer to Configuring Optional RS 232 Communication for detailed information on these settings The power monitor does not initiate messages nor does it support modem dial out capabilities Allen Bradley DF1 Half duplex Protocol The Allen Bradley DF1 half duplex slave protocol is supported by a number of Rockwell Automation and third party products Please refer to DF1 Protocol and Command Set Reference Manual publication 1770 6 5 16 for further information The network master device must be configured as a DF1 polling master All devices on the network must be set to the same baud rate The node addresses of the power monitor must be listed in a permanent or temporary polling list of the master device and the error checking must be set to CRC When communication is established the RS 485 or RS 232 RX and TX status LED indicators flashes alternately at a rapid rate If you are using Rockwell Software RSLinx software as a polling master the power monitor appears in RSWho if it is defined in the polling list For best communication performance using RSLinx software keep the number of concurrent clients to a minimum for example turn off the auto browse function in RSWho To communicate with an Allen Bradley PLC 5 SLC 500 or ControlLogix controllers use message instructions that address the DF1 master port number the power monitor node address the power monitor da
53. ta Word 6 and following words contain data to write to the power monitor 99 Chapter 4 Communication 100 Once the message is assembled your ladder program transfers the integer file to the scanner module MO file starting at word 224 SLC 500 controller or block transfers the 64 word integer file to the scanner module PLC 5 controller The ControlLogix controller includes in its instruction set a CIP Generic message instruction that builds the transaction header and path from information you enter into the message setup dialog in RSLogix 5000 software Message Setup Message Configuratinn msgPM3K_IIser E Byies UalsPMIK Usa El The example above is a ControlLogix message instruction to read the user configured table assembly instance 37 TIP Because the floating point word order in the ControlLogix controller is reversed from the default DeviceNet floating point word order setting in the Powermonitor 3000 unit your ladder logic will need to reverse the word order so the data may be interpreted correctly The SWPB instruction performs this function You may also select little Endian word order however this may be incompatible with RSPower and RSEnergyMetrix software Up to four concurrent explicit messaging connections are supported by the DeviceNet communication port Publication 1404 UM001F EN P November 2009 Publication 1404 UM001F EN P November 2009 Communication Chapter 4
54. ta table address for example F17 0 Metering Power Results and the length of the file in elements The target file must be of the same data type as the power monitor data table for example integer or floating point 91 Chapter 4 Communication IMPORTANT Because the floating point word order in the ControlLogix controller is reversed from that in the power monitor your ladder logic needs to reverse the word order so the data may be interpreted correctly The swap byte SWPB instruction performs this function Because of the DF1 protocol s inherent handshaking the completion of each message may be used to activate the next message without any additional programmed delay Modbus RTU slave protocol We assume that you are familiar with Modbus communication The information provided in this section is general rather than specific Refer to glossary at the end of this publication for definitions of unfamiliar terms For more information about the Modbus RTU Slave protocol see the Modbus Protocol Specification available from http www modbus org Modbus is a half duplex master slave communication protocol The network master reads and writes coils and registers and obtains diagnostic information of the multiple slaves The Modbus protocol allows a single master to communicate with a maximum of 247 slave devices however no more than the physical limitations of the RS 485 or RS 232 ports permit The master d
55. tering data however COS may reduce the network efficiency because the data constantly changes Cyclic I O messaging reports data periodically according to a time increment you configure COS and Cyclic messaging typically reduce the network bandwidth loading compared with Polled messaging To optimize explicit messaging performance use a Background Polled I O connection with a high foreground to background poll ratio To help obtain optimal network operation verify the following settings by using RSNetworx for DeviceNet software looking at the scanner Properties dialog e For Polled I O messaging verify that the effective polling rate or scan time is less than the expected packet rate CEPR to prevent time out errors You may find the EPR on the Module by clicking Advanced e For COS or Cyclic I O messaging verify that the COS Cyclic Inhibit Time is less than the EPR and that the ACK time out is set appropriately You may find these parameters on the Scanlist by clicking Edit I O Parameters Publication 1404 UM001F EN P November 2009 97 Chapter 4 98 Communication Please contact Rockwell Automation technical support if you find that the default settings do not result in adequate network performance Explicit Messaging Use explicit messaging to read and write all data tables other than the I O messaging table The specific details of explicit messaging depend upon the master device that initiates the message The exa
56. utes Powermonitor 3000 unit data table attributes include their addressing data access number of elements data type and user configurability Address Data tables are addressed in a number of ways depending on the type of communication and the protocol being used e For serial communication native RS 485 and optional RS 232 and optional Ethernet CSP PCCC communication the CSP Client Server Protocol File Number identifies the table and its data type in message instructions topic configuration or communication commands CSP file numbers are based on SLC 5 Ox data table addressing IMPORTANT Because SLC 500 data tables 1 8 are assigned specific data types file numbers lower than 9 are not used in the Powermonitor 3000 unit e For remote I O communication a unique Block Transfer Size identifies the data table to read or write using a Block Transfer instruction e For optional DeviceNet and EtherNet IP communication a CIP Control and Information Protocol Assembly Instance identifies the data table Data Access Data tables may be read only or read write Number of Elements the number of unique data values contained in the table The number of words or bytes this represents depends on the data type Data Type Specified as floating point or integer Each floating point element consists of two 16 bit words or four 8 bit bytes of data Each integer element consists of one word or two bytes User configurability T
57. ween the application and the powermonitor XSRSLinx Gateway RSWho 1 5 x File Edit Yiew Communications Station DDE OPC Security Window Help la x 2 218 le xX Browsing node 0 found Workstation USMKETCMARKES1 Publication 1404 UM001F EN P November 2009 zs Linx Gateways Ethernet aie z 00 Workstation DF1 COM1 fil 01 1404 xx DF1 a AB_ETH 1 Ethernet ds AB_ETHIP 1 Ethernet oo 01 DF1 COM1 1404 xx DF1 z106 08 25AM_4 For Help press F1 69 Chapter 4 70 Communication Optional Remote 1 0 Communication Powermonitor 3000 units with a catalog number ending in RIO are equipped with an optional remote I O port in addition to the native port This dual port option allows the use of both ports simultaneously The port emulates a logical quarter rack of I O You must configure the rack address group number communication rate and last rack status Configuration parameters are e RIO Rack Address The logical rack address as configured in the remote I O scanner module Range 0 63 decimal default 1 e RIO Group Number Logical group number corresponding to the remote I O port quarter rack Range 0 2 4 or 6 default 0 e RIO Last Rack If you are using a PLC 2 based system set this flag for the highest numbered rack group addressed device on the channel Range 0 or 1 default 0 e RIO Communication

1404-UM001F-EN-P, Bulletin 1404 Powermonitor 3000 User Manual

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