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metering gateway modbus reg k mtn6503 0201 application metering gateway 7602 1 0 metering gateway modbus reg kmtn6503 0201 merten 200902 13 function overview application metering gateway 7602 1 0 ...

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                                                                                                                                                                                                                         Metering Gateway Modbus REG-K
                                                                                                                                                                                                                                                        MTN6503-0201
                                                                                                                                                                                                                Application Metering Gateway 7602/1.0
                         Metering Gateway Modbus REG-KMTN6503-0201© Merten 200902/13                                                                          Function overview
                          Application Metering Gateway 7602/1.0                                                                                              The KNX Metering Gateway is a device which connects 
                                    Many parameters and their settings are depend-                                                                           meters via the Modbus open standard to KNX. The 
                         |ent on the settings you have already made for oth-                                                                                 Modbus open standard allows you to receive a more in-
                                    er parameters. This means that some parameters                                                                           depth analysis of consumption in all areas of your build-
                                    will appear or disappear and the values available                                                                        ing.
                                    for selection will change according to settings you                                                                      You can connect up to 10 of the following types of me-
                                    have already made. These dependencies have                                                                               ters based on Modbus remote terminal unit (RTU):
                                    not been shown in the table for reasons of clarity.                                                                      • Schneider Electric energy meters
                                    All settings are always shown.                                                                                           • Schneider Electric power meters 
                         |Configurable times are set via the base and factor                                                                                 • Schneider Electric Smart Interface Modules (SIM10M 
                                    parameters. The actual time is given by the multi-                                                                          module)
                                    plication of the two values. Example:                                                                                    • Non-Schneider Electric Modbus RTU devices (offer-
                                    Base = 1second, Factor =  3                                                                                                 ing you greater flexibility)
                                    Actual time = 3 seconds
                         |The bold values in a table are the values set dur-                                                                                 With the information which the KNX Metering Gateway 
                                    ing factory configuration.                                                                                               provides you can visualise energy or media consump-
                                                                                                                                                             tion. This can also be used to reduce consumption 
                         Table of contents                                                                                                                   through the use of control strategies within the KNX net-
                                                                                                                                                             work.
                          •Function overview                                                                                            1                    You can choose from 17 different pre-prepared tem-
                          • Behaviour of the application                                                                                1                    plates for the meters and devices in order to quickly 
                          • Modbus settings                                                                                             2                    connect to a KNX network. Each template contains the 
                          • Metering device templates                                                                                   3                    20 most frequently needed Modbus values for simple 
                              –Metering device x                                                                                        3                    configuration.
                              –Voltage and current monitor                                                                              4                    From each connected Modbus RTU device the KNX 
                              –Power monitor                                                                                            4                    Metering Gateway can read up to an additional 40 Mod-
                              –Consumption monitor                                                                                      5                    bus register values and transfer this data to the KNX 
                              –Template for SIM10M module                                                                               6                    network.
                          •  Direct access to Modbus register                                                                           7                    You can read up to 10 meters using one KNX Metering 
                              –Access to register X                                                                                     7                    gateway. This makes the Gateway very cost-efficient.
                              –Modbus register X                                                                                        7                    Integrating a SIM10 module makes it possible to deter-
                          • Diagnostic block                                                                                            8                    mine and visualise gas and water consumption.
                          • Overview of parameters                                                                                      9                    The KNX Metering Gateway is also suitable for retrofit-
                          • Overview of communication objects                                                                           11                   ting or for retroactive connection of existing Modbus 
                                                                                                                                                             systems to KNX because it is fully compatible with me-
                                                                                                                                                             ters from other manufacturers.
                                                                                                                                                              Behaviour of the application
                                                                                                                                                             The application is influenced by the following events:
                                                                                                                                                             •ETS download
                                                                                                                                                             • Bus voltage failure
                                                                                                                                                             •Bus voltage recovery
                                                                                                                                                             The behaviour differs according to function and can in-
                                                                                                                                                             fluence the measuring and monitoring function. There-
                                                                                                                                                             fore, you can set the behaviour using parameters at the 
                                                                                                                                                             corresponding point. Refer to the chapter in question 
                                                                                                                                                             for a precise description.
                         © 2013 Schneider Electric                                                                                                                                                                                                                                1
               Metering Gateway Modbus REG-K
               MTN6503-0201
               Modbus settings
               Modbus settings                                                              Parameters
               The gateway always works in master mode and the                               Modbus settings
               connected Modbus devices work in slave mode. Com-                             Parameters                          Setting
               munication from KNX bus to the Modbus is not possi-                           Baudrate setting (bit/sec)          1,200
               ble.                                                                                                              2,400
                                                                                                                                 4,800
               Baudrate setting                                                                                                  9,600
               The Baudrate is set depending on the distance be-                                                                 19,200
               tween Modbus RTU devices. For instance with a Baud                            Parity                              None
               rate of 9,600 bit/sec the maximum communication dis-                                                              Even
               tance between 1 - 15 Modbus RTU devices is 1,200                                                                  Odd
               metres. With the Baud rate of 19,200 bit/sec the maxi-                        Stop bit                            One stop bit
               mum communication distance is 900 metres, as the ta-                                                              Two stop bits
               ble shows below:                                                             Delay between frames 
               Baudrate setting                     Maximum communication                   Some devices require considerable time after end of re-
                                                    distance for 1 to 15 Modbus             sponse until they are ready to receive the following re-
                                                    RTU devices                             quest from the master. In particular Schneider Electric 
                                                    (Typical with Belden 3105A 
                                                    cables)                                 SEPAM power devices and legacy slave devices. As 
               9,600 bit/sec                        1,200 m                                 they are slow in dealing with the original request they 
               19,200 bit/sec                       900 m                                   may miss the following request. 
               Parity refers to the technique of checking if transmis-                      The time between requests should be less than 3.5 
               sion has been successful when transmitting between                           characters according to the Modbus specification. 
               devices. It lets you know if some data has been lost dur-                    However, these legacy devices need more time. The 
               ing transmission.                                                            parameter „Delay between frames“ solves this problem. 
               Setting of parity                                                            The time is automatically adapted to 3.5 characters of 
                                                                                            the transmission speed, but you have the choice to in-
               The Modbus supports only 11 bit frames. The ETS ap-                          crease this time if you need to support such slow legacy 
               plication sets stop bits automatically depending on the                      devices. 
               parity setting. "Parity" refers to the number of 1s in a giv-                Parameters
               en binary number. Odd parity means there are an odd                           Modbus settings
               number of 1s and even parity means that there are an                          Parameters                          Setting
               even number of 1s. Parity bits are used as a means of                         Delay between frames                Disabled
               error detection as digital data is transmitted and re-                        1 ms* factor (50 .. 100)            50 - 100 adjustable in steps of 10
               ceived. Both the Gateway and Meter must always be set 
               to the same as one another, odd, even or none. The de-                       Start-up delay
               fault parity mode of Modbus is "even" parity.                                The parameter „Start-up delay“ specifies from what 
                                                                                            point measured values are counted in the application. 
               |Make sure that all connected meters are always                              After an ETS download or bus voltage recovery, the de-
                     set to the same parity as one another, odd, even or                    vice starts measuring the connected channels when 
                     one.                                                                   the start-up delay is complete. 
               • Parity = None: choose between one and two stop bits                        Parameters
               • Parity = Even: one stop bit is set                                          Modbus Settings
               • Parity = Odd: one stop bit is set                                           Parameters                          Setting
                     When parity is set to „None“ it is necessary to pre-                    Start-up delay                      5
               |set meters PM2x0, PM7x0 and PM8x0 to one stop                                1 s * factor (1-250)                adjustable in single steps
                     bit (all other meters require a setting of two stop 
                     bits here). This means that under „None“ parity 
                     PM2x0, Pm7x0 and PM8x0 meters cannot be 
                     combined with other meters. In their case it is nec-
                     essary to work with „Odd“ or „Even“ parity.
               2                                                                                                                        © 2013 Schneider Electric
                                                                                                                                Metering Gateway Modbus REG-K
                                                                                                                                                  MTN6503-0201
                                                                                                                                        Metering device templates
               Metering device templates                                                    Metering device x
               Pre-installed ETS templates provide you with the 20                          You can select the metering device you require from the 
               most frequently needed values which makes configura-                         parameter „Type of metering device“. These are the 17 
               tion much easier and quicker. This also means there is                       devices from the previous table. 
               no need to map the Modbus register addresses to KNX.                         Each connected device has a unique address, between 
               The ETS application has special templates which you                          1 and 247, as per the Modbus addressing protocol. To 
               use to implement the Schneider Electric Modbus RTU                           identify the device, you need to set its address at the 
               based energy or power meters and SIM10M module.                              parameter „Address of metering device“. 
               These devices are outlined in the table below:                               The template allows you to to monitor different kinds of 
               Supported devic-                                                             values. To achieve this it has three monitoring functions 
               es                                                                           which you can enable by parameter. These are:
               Type                   Name         Description                              • „Voltage and current monitor“
               Energy/power meter PM9C             power meter for the installation 
                                                   distributor (cabinet) for measure-       • „Power monitor“
                                                   ment with current transformers           • „Consumption monitor“
               Energy/power meter PM210            current, voltage, power and ener-
                                                   gy (each active/idle/apparent), 
                                                   frequency and power factor               With the parameter „Sending behaviour“ you can spec-
               Energy/power meter PM710            slave pointer (min/max), Total           ify how all values of the monitors are sent. For a cyclical 
                                                   Harmonic Distortion (THD) I/THD          sending, you can set the parameter „Time base“ to ei-
                                                   U harmonic distortion                    ther 1 second or 1 minute. The chosen setting applies 
               Energy/power meter PM750            like PM710 with alarm contact            to all values of the whole template.
               Energy/power meter PM810            like PM750 with 4-quadrant 
                                                   measurement                              Parameters
               Energy/power meter PM820            like PM810 with additional inte-
                                                   grated memory for logging events          Metering device x
                                                   and analysis of harmonics.                Parameters                          Setting
               Energy/power meter PM850            like PM810 with harmonic content          Type of metering device             Disabled
               Energy/power meter PM870            like PM850 with additional detec-
                                                   tion and logging of peaks of volt-                                            PM9C
                                                   age and current                                                               PM210
               Energy/power meter PM1200           like PM210 withTHD I/THD U har-                                               PM710/PM750
                                                   monic distortion                                                              PM8x0
               Energy/power meter DM6200           Ampere, volt, frequency meter                                                 DM1200
               Energy/power meter iEM3150          direct measurement to 63A,                                                    DM6200
                                                   records energy
               Energy/power meter iEM3155          like iEM3150 with alarm contact, 
                                                   MID compliant                                                                 iEM3150
               Energy/power meter iEM3250          transformer measurement                                                       iEM3155
               Energy/power meter iEM3255          like IEM3250 with alarm contact,                                              iEM3250
                                                   MID compliant                                                                 iEM3255
               Energy/power meter PM3250           4-quadrant measurement, THD I/                                                PM3250/PM3255
                                                   THD U harmonic distortion
               Energy/power meter PM3255           like PM3250 with alarm                                                        SIM10M
               Smart Interface        SIM10M       input module for pulse counting.          Address of metering device          1 ..247
               Module                                                                        Read Modbus values after start      Enabled
                                                                                                                                 Disabled
                                                                                             Voltage and current monitor         Enabled 
                                                                                                                                 Disabled
                                                                                             Power monitor                       Enabled 
                                                                                                                                 Disabled
                                                                                             Consumption monitor                 Enabled 
                                                                                                                                 Disabled
                                                                                             Sending behaviour                   Cyclically (as configured 
                                                                                                                                 time)
                                                                                                                                 If value was changed
                                                                                             Time base                           1 sec
                                                                                                                                 1 min
               © 2013 Schneider Electric                                                                                                                          3
            Metering Gateway Modbus REG-K
            MTN6503-0201
            Metering device templates
            Voltage and current monitor                                      Power monitor 
            You can set the parameter „Voltage and current moni-             The power monitor allows you to enable parameters as 
            tor“ to read Modbus values after start. Values for voltage       follows:
            and current are available for each phase (1-3) seperate-         • Power factor (power factor in cosΦ)
            ly. When you enable the voltage or current of phase x            • Active power x, for each phase 1-3
            you can then set their cyclic sending with integers of 1         • Reactive power x, for each phase 1-3
            second or 1 minute, with a base as configured in previ-          • Total active power (total power in kW), sum of phases 
            ous parameter „Time base“.                                         1-3
            Parameters                                                       • Total reactive power (total power in kVAr), sum of 
             Voltage and current monitor                                       phases 1-3
             Parameters                    Setting                           • Total apparent power (total power in kVA), sum of 
             Voltage unit                  Millivolt (DPT 9.020)               phases 1-3
                                           Volt (DPT 9.*)                    With each of these you can then set their cyclic sending 
             Voltage of phase x            Enabled                           with integers of 1 second or 1 minute, with a base as 
                                           Disabled                          configured in previous parameter „Time base“.
             Cyclic voltage sending        2, 1 .. 250
             Time base * factor (1-250)                                      Parameters
             Current unit                  Milliampere (DPT 9.021)            Power monitor
                                           Ampere (DPT 9.*)                   Parameters                    Setting
             Current of phase x            Enabled                            Power factor (cos phi)        Enabled 
                                           Disabled                                                         Disabled
             Cyclic current sending        2, 1 .. 250                        Cyclic power factor sending   2, 1 .. 250
             Time base * factor (1-250)                                       Time base * factor (1-250)
             Frequency                     Enabled                            Active power x                Enabled 
                                           Disabled                                                         Disabled
             Cyclic frequency sending      2, 1 .. 250                        Cyclic active power factor sending  2, 1 .. 250
             Time base * factor (1-250)                                       Time base * factor (1-250)
                                                                              Power datapoint               Power kW (DPT 9.024), 2 Byte
                                                                                                            Value power W (DTP 14.056), 4 
                                                                                                            Byte
                                                                              Reactive power x              Enabled 
                                                                                                            Disabled
                                                                              Cyclic reactive power factor send- 2, 1 .. 250
                                                                              ing 
                                                                              Time base * factor (1-250)
                                                                              Power datapoint               Power kW (DTP 9.024), 2 Byte
                                                                                                            Value power W (DTP 14.056), 4 
                                                                                                            Byte
                                                                              Total active power            Enabled 
                                                                              Total reactive power          Disabled
                                                                              Total apparent power
                                                                              Cyclic total active / reactive / apar- 2, 1 .. 250
                                                                              ent power factor sending 
                                                                              Time base * factor (1-250)
                                                                              Power datapoint               Power kW (DTP 9.024), 2 Byte
                                                                                                            Value power W (DTP 14.056), 4 
                                                                                                            Byte
            4                                                                                                     © 2013 Schneider Electric
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...Metering gateway modbus reg k mtn application kmtn merten function overview the knx is a device which connects many parameters and their settings are depend meters via open standard to ent on you have already made for oth allows receive more in er this means that some depth analysis of consumption all areas your build will appear or disappear values available ing selection change according can connect up following types me these dependencies ters based remote terminal unit rtu not been shown table reasons clarity schneider electric energy always power configurable times set base factor smart interface modules simm actual time given by multi module plication two example non devices offer second greater flexibility seconds bold dur with information factory configuration provides visualise media consump tion also be used reduce contents through use control strategies within net work choose from different pre prepared tem behaviour plates order quickly network each template contains templa...

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