SEM3™ – Embedded Micro Metering Module™
Contents
1. SIEMENS Scan QR Code for more information SEM3 Embedded Micro Metering Module Quick Reference Guide Installation considerations 3 Meter racks The meter modules are designed to snap into Installation and maintenance of the SEM3 metering system the rack assemblies The rack assemblies are sized by how should only be performed by qualified competent personnel many modules will fit into each and come in 3 9 15 and 21 that have appropriate training and experience with high module configurations voltage and current devices The meter must be installed in l accordance with all local and national electrical codes 4 CT or current transformers The SEM3 systems has solid core CTs for use with the system in the following maximum amperage ranges 50 125 250 400 600 800 and 1200 DANG ER amps These are maximum amperage ranges for normal a usage but will measure accurately down to 1 of the maximum range Hazardous Voltage Will cause death or serious injury Turn off and lock out all Power before working on this equipment 5 Communication cables The communication cables are designed like CAT 5 cables but are insulated for use The SEM3 system is made up of the following in systems up to 600 volts The cables are for two way components and options communication from the controller to the rack meter modules 1 Controller The controller is used to communicate the metered values to outsi2. ch Modbus Setting Addresses Addresses Addresses Addresses Setting Addresses 2 2 2 0 2 3 3 3 3 4 4 4 5 5 5 5 6 6 6 1 6 7 7 7 7 8 8 8 9 9 9 9 10 10 10 2 10 Left 1 11 11 11 11 12 12 12 13 13 13 13 14 14 14 3 14 15 15 15 15 16 16 17 17 17 18 18 4 18 19 19 19 20 20 Open 21 21 Address 21 Space 22 5 22 23 23 Open 24 Address space 25 25 26 6 26 Open 27 Address 27 Space 28 29 29 30 7 30 31 31 32 Figure 5 Four meter rack options with meters snapped inside Right chart indicates addresses for right setting on 9 15 and 21 module racks and 8 F on 3 module rack 9 15 and 21 Single 21 15 e 3 3 Position MERG Position Position Position Position Position Rack Dip Monitor Rack Rack Rack Rack Rotary Rack Switch Modbus Modbus Modbus Modbus Switch Modbus Setting Addresses Addresses Addresses Addresses Setting Addresses Right 2 43 43 43 43 44 44 44 45 45 45 45 46 46 46 B 46 47 47 47 47 48 48 49 49 49 50 50 C 50 51 51 51 52 52 Open Address 53 53 Space 53 54 D 54 55 Open 55 Address 56 space 57 57 58 Open E 58 Address 59 Space 59 60 61 61 62 F 62 63 63 The 3 module rack can be used as an extension to any of the other racks or pairs of racks Settings must be such that no address is used more than once Duplication of addresses will return an error on setup Login page Default user name is admin Default password is s
3. de systems by way of a web page interface Modbus RTU or Modbus TCP One controller can manage up to 45 meter modules The controller also has the system digital inputs for receiving pulse inputs from other metering devices as well as a digital output for the combined KWh output of the system being metered 2 Meter modules There are two choices for the meter modules that are differentiated by accuracy specification The accuracies are 1 for the standard accuracy modules and 0 2 for the high accuracy modules The accuracy is tested in accordance to ANSI C12 20 0 2 E teeter Paces soc DD et heei cass Cable Figure 1 SEM3 System Answers for infrastructure and cities Configuring the system There are a few steps in configuring the components of the SEM3 metering system Refer to the Installation Manual instructions on mounting of the SEM3 components Current Transformer CT There is no setting on the CT for the system The CTs for use in the SEM3 meter system are 100 mA output and are self protecting so shorting blocks are not required Standard CT wire length is 6 feet CT wire length can retain accuracy up to 100 feet using 18 AWG twisted pair wire Meter modules These instructions are for both levels of accuracy modules Each meter module is a single phase meter and must be connected to the appropriately sized SEM3 system CT The meter modules are then snapped into place into a rack assembly The rack as
4. em3 User name and password can be set to user preference and are case sensitive See the User Manual for more detail The web page has other settings available and can be accessed by clicking on the tabs at the top of the page System settings The following may be set from this page See user manual for more information e IP configuration For configuration of the IP address if using Modbus TCP Be sure to write down the new IP address as you will lose communications once saved e RTU slave configuration For setting of address if used as a Modbus RTU device e Real time refresh interval Time interval for the web page to refresh real time date e Device description For naming of the system e Panel configurations to include e Demand sub interval Number of measurements taken in the sub interval e Sub interval length Time between intervals e Voltage mode Delta or Wye e Line to Neutral Line to Line voltage depending on voltage mode e Potential Transformer PT Primary voltage Secondary preset to 120 Save Data changes must be saved before leaving this page or it will be lost Reset Data available from this page e Firmware version e Serial number of the controller Global settings Global settings will be applied across all the meters in the system Each meter can be customized in the Branch meter configuration screen The alarms are for the meters and not meter modules Individual
5. from the rack Blue mark indicates high accuracy and burgundy mark indicates standard accuracy CT wire terminal blocks CT wire screw terminals Figure 3 Meter module Three phase wiring Left rail MODBUS TCP IP Two energy pulse in Energy pulse out Right rail Figure 4 Controller Ping statistics for 192 168 1 65 Packets Sent 4 Received 4 Lost 0 0 loss Approximate round trip times in milli seconds Minimum 56ms Maximum 78ms Average 65ms If not then check your connection between the PC s Ethernet port and the Controller MODBUS TCP IP port Open Explorer or Chrome and type out the IP address 192 168 1 65 At the Login Page the default user name is admin and the default password is sem3 Meter Racks The meter module racks have the addresses for the module to controller communications hard coded into them The 9 15 and 21 module racks have a two position dip switch for setting one of two address ranges for each The three module rack has a rotary switch to allow it to be configured for multiple address ranges The chart below shows the ranges available for each rack Left chart indicates rack addresses for left setting on 9 15 and 21 module racks and setting 0 7 on 3 module rack 9 15 and 21 Single 21 15 9 3 3 Position Phase Position Position Position Position Position Rack Dip Monitor Rack Rack Rack Rack Rotary Rack Switch Modbus Modbus Modbus Modbus Swit
6. g into the Search box in the Start Menu and select Network and Sharing Center when it comes up 2 Then when the Network and Sharing Center opens click on Change adapter settings 3 Right click on your local adapter and select Properties 4 In the Local Area Connection Properties window highlight Internet Protocol Version 4 TCP IPv4 then click the Properties button 5 Select the radio button and enter the correct IP address Ex 192 168 1 100 and Subnet mask 255 255 0 0 The PC static IP address should be in the same IP address range of the SEM3 controller QR 6 Close out of the Local Area Connections Properties window code jcolated 7 You can open the command prompt and do an ipconfig to see the network RS485C adapter settings have been successfully changed Ping your SEM3 Controller Default IP address 192 168 1 65 Open a Command Prompt and at the prompt type ping followed by a space amp the IP Address of your SEM3 and press Enter You should get the following Pinging 192 168 1 65 with 32 bytes of data Reply from 192 168 1 65 bytes 32 time 56ms TTL 250 Reply from 192 168 1 65 bytes 32 time 60ms TTL 250 Reply from 192 168 1 65 bytes 32 time 69ms TTL 250 Reply from 192 168 1 65 bytes 32 time 78ms TTL 250 2 continued on next page Solid core Figure 2 Current transformer Power and communication indicator LED LED indicates Phase position switch location Release lever to allow easy removal
7. here are three levels of users available e Supervisor Has the ability to see all data and modify setting and clear alarms and add or modify user settings e Controller Has the ability to see all data and to clear alarms Controller cannot see or modify user management e Observer Has the ability to see data but is not allowed to modify or clear alarms Diagnostics This page is accessible to Supervisor user The SEM3 metering system can work with supervisory systems such as WinPM Net Power manager and other SCADA or Building management systems that use Modbus protocol The Modbus registers for this product are such that configuration using the controller web interface is not absolutely necessary but by doing so valuable time can be saved 1 Some applications will allow for more than 45 poles in one enclosure by adding a second controller Two controllers can monitor up to 90 poles
8. phase alarms can only be set for single pole meters Alarm delays are time settings where the meter is in alarm condition before the alarm flag is set This is to prevent momentary conditions sending alarm flags Multi pole circuit breaker configuration This page is used to configure the meter modules into meters The bottom of the page displays those meters configured from the bottom of the page The meter configuration is drag and drop from the available module column to the different meter configurations 1 2 or 3 pole Note that modules have to be mounted contiguously in the racks to be configured as multi pole meters Branch meter configuration This page allows for customization of the configured meters Custom alarms may be set that override the global alarms as well as naming of the individual meters Real time data This screen gives an overview of the alarm Status of the configured meters and allows for clearing of the individual meter alarms Clicking on the individual meters will display that meters real time information to the right of the grid User profile This page is accessible to all users who can modify their details except the User ID and Access Level User ID and Access Level are set by the Supervisor only from the User management screen User management This page Is accessible to Supervisor user who can manage users accounts that includes adding removing and modifying the users T
9. sembly has the module address to the controller hard coded in the hardware Note For metering of multi pole circuit breakers the meter modules must be mounted contiguously to each other Gaps in the rack will not allow multi pole meters to be configured Each module must have the phase dip switch on the top of the module set to the phase that the CT is metering phase A B or C Line 1 2 or 3 respectively Note Once the meter module is placed into the rack and energized the phase position will be indicated by a different color LED for each position These descriptions are for the connections to the controller not the LED colors on the meter module L1 phase A color is orange L2 color is yellow L3 color is green The LEDs are adjacent to the phase numbers The power indication LED also indicates communications by flashing CT sizing for each meter module will be done through the controller web page later in configuration Controller The controller functions as the set up interface for the system System settings CT ratios PT ratios alarm settings communications settings and passwords are all set using the web page interface of the controller See Installation Manual instructions for mounting and dimensional information To start Connect the controller to a PC using the Ethernet Modbus TCP port See Figure 4 Assign Static IP address To change the PC computer s IP address in Windows 7 8 1 Type network and sharin
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