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CAN bus

This menu contains all of the information and settings needed to set up a CANopen network. Up to

62 CAN bus devices can be operated in one network.
Every CAN bus device must be given its own node number in the network.
The cable topology of a CAN bus network is described in the installation instructions.

The CAN network allows communication between CAN bus devices. When analogue or digital

values are sent via CAN outputs, other CAN bus devices can utilise those values as CAN inputs.

 

Содержание CAN-EZ2

Страница 1: ...ta co at CAN EZ3 CAN ENERGY METER General information Installation and connection Relevant functions English Manual Version 1 21...

Страница 2: ...bus data link 15 CAN Bus network 16 Wireless system CORA 20 Principles 20 Pairing CORA devices 20 Relaying wireless signals 21 Deleting a pairing 21 CORA DL cable instead of wireless 22 Installation 2...

Страница 3: ...eters 58 Fixed value type 58 Digital 58 Analogue 59 Pulse 60 Function quantity 60 Designation 60 Restriction of change authority 60 Functions 61 Messages 62 CAN bus 63 Datalogging 64 Datalogging Setti...

Страница 4: ...ORA devices 80 fiD sub menu 80 Input variables 80 Parameters 81 Output variables 81 General settings 82 Current transformer 82 Phase simulation 82 Language 82 Brightness 82 Display timeout 82 Simulati...

Страница 5: ......

Страница 6: ...r another system component Maintenance If treated and used correctly the device will not require any maintenance Use a cloth moistened with mild alcohol such as methylated spirits to clean Never use c...

Страница 7: ...ver only specific functions are used for the ac tual purpose of the energy meter and these are described in these instructions For tasks such as heat metering 4 analogue inputs for temperature sensors...

Страница 8: ...required wires are connected to the voltage terminals in the CAN EZ3 The connection of sensors and CAN and DL buses is carried out using the supplied connectors Power supply The CAN EZ3 is supplied w...

Страница 9: ...be observed The following diagram is only an example of the installation of a CAN EZ3 in a typical TN S system with surplus power supply NZHS Normal supply main switches HAS Grid connection fuses ENS...

Страница 10: ...ree ly programmable controllers and must be observed Modbus Interface for Modbus RTU485 as master or slave DL bus DL bus interface for DL sensors e g FTS DL with intermediate board Parameterisation DL...

Страница 11: ...in the General set tings to Yes In this case the values voltage cos phi output for L2 and L3 are simulated inter nally using L1 Phase simulation is based on a clockwise rotating field therefore a cloc...

Страница 12: ...can be damaged Each external current transformer is labelled with K L whereby the energy direction must be from K to L for positive metering The poles of the cable connecting the electricity sensor a...

Страница 13: ...domestic hot water required during the heating season The supplied cable fitting acts as strain relief Installation below the associated coil or heat exchanger is not permissible under any cir cumstan...

Страница 14: ...mperature influences from nearby air shafts open windows cable ways etc It must not be subjected to direct insolation Sensorleitungen All sensor leads with a cross section of 0 5 mm2 can be extended t...

Страница 15: ...two cable conduits or the use of screened cables Use separate screened cables when capturing data from two controllers with a single datalogger Never run the data link together with a CAN bus cable i...

Страница 16: ...easures Cable screening The bus cable screen must be connected well at every node to provide continuity For larger networks we recommend including the screen in the equipotential bonding in line with...

Страница 17: ...strike In order to protect against voltage surges in the 230 V mains supply cable indirect lightning strike appropriate lightning conductors and surge arresters compliant with local regulations must...

Страница 18: ...me transfer rate in order to be able to communicate with each other Recommendations A 2x2 pole screened twisted pair twist CAN L with CAN H or 12 V with GND with a cable cross section of at least 0 5...

Страница 19: ...ple Connection of three network nodes NWN with a 2x2 pole cable and termination of the ter minal network nodes network inside one building Each CAN network is to be provided with a 120 ohm BUS termina...

Страница 20: ...F devices cannot be used Wireless system settings can be found in the main menu item CORA devices Pairing CORA devices In the ATON set the included CAN EZ3A energy meter and the EHS R immersion heate...

Страница 21: ...However CORA 1 can reach CORA 2 and CORA 2 can reach CORA 3 During parameterisation on CORA 1 pairing with CORA 3 the CORA ID of CORA 3 is entered under CORA ID and the CORA ID of CORA 2 is en tered...

Страница 22: ...be run with a wireless and a cabled con nection at the same time For use with a cable set Connection to CORA DL in the parameters of the set CORA device Under CORA ID enter the ID of the device to be...

Страница 23: ...navigation are described in more detail in the Operation in structions Inputs The energy meter has 8 inputs for analogue measurements digital signals ON OFF or pulses Type I 1 I 2 I 3 I 4 I 5 I 6 I 7...

Страница 24: ...r replaced with your own programming Overview of TAPPS2 programming Inputs Datalogging The following values are logged in data record Analogue values data record Digital values is un used Datalogging...

Страница 25: ...ory records the values of the heat meter and energy meter totals them and stores them in differential mode The mathematics function uses output variable Result to offer a display value for the totalle...

Страница 26: ...the COP value is a good criterion for heat pumps Test institutes determine this value according to a defined measuring method DIN EN 255 However performance number and COP value do not allow any energ...

Страница 27: ...t output level By specifying a negative value power is exported to the grid instead All input variables related to power can be given values in the units W or kW The unit is recog nised automatically...

Страница 28: ...Energy manager 28 Example of a standard diagram Energy manager with output control CAN EZ3 and EHS R...

Страница 29: ...art differential The consumer is not activated until the minimum output start dif ferential is reached The consumer is deactivated again when the output falls below minimum output Operation proceeds t...

Страница 30: ...ansferred via the CAN bus This can have a negative impact on delayed responses of the control characteristics system starts to oscillate The cycle time should be matched to the transfer time of the bu...

Страница 31: ...ll be negative as well i e the metered values can also become negative The meter reset is carried out by means of a digital ON pulse or manually from the parameter menu It will delete all meter readin...

Страница 32: ...um Prev week sum Month sum Prev month sum Year sum Prev year sum Sum total PLEASE NOTE The meter readings from the Energy meter function module are saved to the internal memory every hour Therefore in...

Страница 33: ...a solar thermal system the collector sensor can also be used as the flow sensor For that to be possible it must be installed in a sensor well at the flow outlet of the collector header However the ca...

Страница 34: ...om pensate this error After selecting Start calibration the user is prompted to confirm If the calibration was per formed by mistake or incorrectly the result can be undone with Delete calib values an...

Страница 35: ...ing therefore equals 1 19 x 1 015 1 208 This means heat metering accuracy of 20 8 in the worst case scenario at 10 K spread without calibrating the temperature sensors although all measuring errors wo...

Страница 36: ...ing Kilowatt hours total Day sum Display of yield in the set currency Previous day sum Week sum Prev week sum Month sum Prev month sum Year sum Prev year sum Sum total ATTENTION The meter readings fro...

Страница 37: ...th their unit and their decimal places Differential mode The differentials of the calculated values between beginning and end of the day month and year are saved This version is suitable for example f...

Страница 38: ...ln and log The fields marked Operator 1 3 are for selecting the arithmetic operation Addition Subtraction Multiplication x Division Modulo remainder from a division Exponentiation The brackets must be...

Страница 39: ...able is OFF Result CD enable off Analogue value for the Result CD output variable when Enable is OFF Input variable A D Analogue values for the mathematical calculations to five decimal places If the...

Страница 40: ...c operation is performed according to the following formula The first field Function can remain empty in which case it has no effect on the arithmetic oper ation In this field a function can be select...

Страница 41: ...s C and D without any func tion calculation The results are produced with the selected function quantity unit and the decimal places specified by it and can be used as input variables for other functi...

Страница 42: ...the maximum overall measuring error for heat metering therefore equals 1 19 x 1 015 1 208 This means heat metering accuracy of 20 8 in the worst case scenario at 10 K spread without calibrating the t...

Страница 43: ...l reset deletes all function modules the parameter settings for all inputs and outputs bus in puts and outputs fixed values system values and the CAN bus settings LED status indicators LED indicators...

Страница 44: ...ough menus Twisting it clockwise nav igates downwards in a menu twisting it counter clockwise navigates upwards Pushing the wheel 2 down opens the currently selected menu enables changing the currentl...

Страница 45: ...of the Message function Indicator light Explanation Steady red light The controller is booting up start routine after switching on resetting or updating or Steady orange light Hardware is initialising...

Страница 46: ...displayed for entering numeric values Name of the numeric value entry range Current numeric value The current value is shown example 22 0 C The top line shows the entry range example 273 2 2000 0 C Th...

Страница 47: ...from the technician or expert level can be created changed or deleted globally Displayed in Technician or Expert mode only View with designations defined previously Entries are made up of letters numb...

Страница 48: ...set to No Date The current date dd mm yy Time The current time GPS latitude Geographical latitude according to GPS global position ing system GPS longitude Geographical longitude according to GPS Sunr...

Страница 49: ...49 Value summary In this menu the sensor inputs DL bus inputs and analogue digital CAN bus inputs can be clearly displayed If an entry is selected the corresponding values are listed below...

Страница 50: ...ters Sensor type and measured variable Once the required input is selected the sensor type can be defined First you must specify the basic type of input signal Digital Analogue Pulse Typ S1 S2 S3 S4 S...

Страница 51: ...r type RFS Rain sensor type RES Also select the process variable for the measured variables Voltage and Resistance Then you must use scaling to define the value range Example Voltage Global radiation...

Страница 52: ...ate measured variable This is the flow rate in litres per pulse Setting range 0 1 100 0 l pulse Pulse This measured variable is used as the input variable for the Meter Counter function as a pulse cou...

Страница 53: ...adiation Humidity and Rain The corrected value is utilized for all calculations and displays Example PT1000 temperature sensor Average This setting refers to the average of the measurements over time...

Страница 54: ...f the value exceeds the upper measure ment limit The Standard values for temperature sensors are 9999 9 C for a short circuit and 9999 9 C for a lead break Those values are utilised in the internal ca...

Страница 55: ...o external interference their sensor leads must be screened and the Average time should be increased Nevertheless the accuracy specified in the technical data for PT1000 sensors cannot be guaranteed P...

Страница 56: ...tance at the minimum temperature of the temperature range R2 HT Resistance at the maximum temperature of the temperature range T1 NT Minimum temperature of the temperature range T2 HAT Maximum tempera...

Страница 57: ...to 64 fixed values which can be used as input variables for functions for example When this item is selected in the main menu the fixed values already defined are displayed together with their designa...

Страница 58: ...n No Yes Select whether the status can be changed via a selection box or simply by a click Changing a digital fixed value Tapping a button with a light background allows you to change the fixed value...

Страница 59: ...designation you must define the permitted limits and the current fixed value The value can be adjusted in the menu within those limits Example Changing an analogue fixed value Tapping the button allo...

Страница 60: ...tivated either an ON pulse from OFF to ON or an OFF pulse from ON to OFF will be generated depend ing on the selection made here Designation Enter the fixed value designation by selecting a predefined...

Страница 61: ...ction Under Type you select which function is to be created The line at the top of the menu provides access to fiD type and designation input variables param eters output variables and links The menu...

Страница 62: ...62 Messages This menu item displays activated messages Example A message is active...

Страница 63: ...ne network Every CAN bus device must be given its own node number in the network The cable topology of a CAN bus network is described in the installation instructions The CAN network allows communicat...

Страница 64: ...n this sub menu The sources for the logged values can be inputs outputs function output variables fixed values sys tem values and DL and CAN bus inputs Note Digital inputs must be defined within the r...

Страница 65: ...is specified for most CAN bus devices Important All devices in the CAN bus network must have the same transfer rate in order to be able to communicate with each other The bus rate can be set to betwee...

Страница 66: ...red the other settings can be specified The number of a CAN analogue output is taken from the device with that node number and applied here Example On CAN analogue input 1 the output number applied is...

Страница 67: ...react appropriately to a failure of the CAN bus or transmission node In System values General a network error for all CAN inputs is available Sensor check If you set Sensor check to Yes the sensor er...

Страница 68: ...This allows the controller to react to the failure of a sensor for example If the Standard thresholds are selected a short circuit will be indicated if the value falls below the measurement limit and...

Страница 69: ...lay for the CAN digital input can be changed from Off On to No Yes and you can define whether the controller should issue the last status transmitted Un changed or a definable substitute status when t...

Страница 70: ...ared to the last transmitted value a new transmission is made The unit used by the source is applied to the output value minimum setting 0 1 K Blocking time 10 s If the value changes by more than 1 0...

Страница 71: ...menu view the network overview opens All active CAN nodes with node number and device designation are displayed here Select an x2 device to be able to access it This view shows a CAN EZ3 with node num...

Страница 72: ...e DL bus and for display on the RAS PLUS room sensor The C M I can be used for DL datalogging Only the input and output values and the 2 heat meters are included in the data output the values of the n...

Страница 73: ...e or digital DL bus address and DL bus index Every DL sensor must have its own DL bus address Setting the address of a DL sensor is described in the sensor s datasheet Most DL sensors can measure vari...

Страница 74: ...e of the DL bus or DL sensor In System values General a network error for all DL inputs is available Sensor check If you set Sensor check to Yes the sensor error of the sensor supplying the DL input i...

Страница 75: ...fied for the controller in the event of sensor failure at the transmission node in order to allow a function to continue operating in emergency mode fixed hysteresis 1 0 C The short circuit threshold...

Страница 76: ...of the source in the energy meter from which the value for the DL output stems Inputs Outputs Functions Fixed values System values CAN bus analogue CAN bus digital Example Digital value source the re...

Страница 77: ...TU485 In this menu all settings for Modbus functionality are made and the in puts outputs are programmed Only the Modbus RTU485 protocol is supported Modbus settings Controller programmed as master or...

Страница 78: ...g correct position of the decimal point Unit Every Modbus input must be assigned a unit as the transmitted data is dimensionless A wide range of units is availa ble to choose from Sensor correction T...

Страница 79: ...or adjusting the output value to the target device Only whole num bers without a unit can be output to the Modbus Example 37 5 C is out put as 375 If only 37 is to be output enter 10 as the divisor Tr...

Страница 80: ...ew CORA device select New CORA device fiD sub menu After creating a CORA device select that node Type determines the device type with which a connection is to be estab lished currently only EHS is ava...

Страница 81: ...r is set to Yes attempts will be made at increasingly long intervals to re establish a connection to the target device Pair Make a single manual attempt at pairing With Connect automatically if set to...

Страница 82: ...former up to 100 A special accessory Phase simulation See chapter Electrical measurement in the installation instructions Language Select the display language Brightness Select the brightness of the d...

Страница 83: ...d Select from OFF Analogue Simulation with the EWS16x2 development set CAN SIM board Simulation with SIM BOARD USB UVR16x2 for simulation in a system The simulation mode is ended automatically when yo...

Страница 84: ...Technician or Expert level View with designations defined previously Entries are made up of letters numbers and symbols entered consecutively Up to 100 different designations can be defined by the use...

Страница 85: ...controller returns to the User level and applies the programmed passwords When the controller is started the controller is always in the User level Changing the password An Expert can change the passw...

Страница 86: ...s no access to the parameters Messages display of active messages hiding and deleting messages CAN and DL bus no access to the parameters General settings language brightness and display timeout can b...

Страница 87: ...on and serial number This menu displays the serial number internal production data and the name of the current function data The serial number is also visible on the controller s rating plate upper si...

Страница 88: ...r expert mode You can perform the following actions in this menu Save load or delete function data Load firmware Load or delete a function overview Display the status of the data transfer Restart the...

Страница 89: ...ls the action If function data is loaded onto the controller a _Backup dat file is created on the SD card with the old function data Once the function data is loaded the controller returns to the User...

Страница 90: ...onfirmation prompt appears which you can confirm by tapping Tapping cancels the action Rename file The file name can be changed using a keyboard Umlauts are not possible The file name must be no longe...

Страница 91: ...SD card If you want to save the function data under a new name tap on the button You can then enter a new name and save the file umlauts cannot be en tered The file name must be no longer than 63 cha...

Страница 92: ...echnician or expert password has been entered for the tar get device As when loading function data the saved firmware files can be deleted renamed or loaded onto oth er x2 devices Return from this sel...

Страница 93: ...d out Answer by tapping either Yes or No If a total reset is carried out a _Backup dat file is created on the SD card with the old function data Restart At the end of the Data admin menu there is an o...

Страница 94: ...rk errors are global digital values No Yes which are not connected to the error status of a specific sensor or network input If any one of the sensors or network inputs has an error the status of the...

Страница 95: ...see Shading function Direction of the sun see Shading function Solar altitude 0 digital value yes no High sun time Total apparent power kW Apparent power L1 L2 L3 kW Total real power kW Real power L1...

Страница 96: ...mers Max 20 kVA per phase for 100 A current transformers Max 70 kVA per phase for 400 A current transformers Resolution 10 VA Maximum cable diameter for current transformers 10 mm for standard current...

Страница 97: ...ehold and similar use Part 1 General requirements EN 61000 6 3 2007 Electromagnetic compatibility EMC Part 6 3 Generic standards Emission standard for residential commercial and light industrial envir...

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Страница 100: ...stallation instructions or incorrect maintenance 4 The warranty claim will expire if repairs or actions are carried out by persons who are not authorised to do so or have not been so authorised by us...

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