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ELKOR TECHNOLOGIES INC. 

- Page 39 - 

MCM 

–

 USER MANUAL 

7.

 

APPENDIX B, CT WIRING 

7.1.

 

Single Phase Installation 

 

A

B

C

A

B

C

A

B

C

A

B

C

A

B

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A

B

C

A

B

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A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

 

A

B

C

A

B

C

A

B

C

A

B

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A

B

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A

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B

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

A

V

B

V

C

N

1

11

10

20

9

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7

17

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5

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4

14

3

13

2

12

Power

Supply

100~240

Vac

to

24VDC

ETHERNET

ACTIVITY

SERIAL

RESET

REBOOT

FAULT

STATUS

MB

24VDC

100mA

OUTPUT

AUX

+

+

+

+

-

-

-

-

HMI Interface

100~240

Vac

+  -

24VDC

RJ45 Ethernet
(Modbus/TCP,

Webserver, API)

(optional)

RS-485 

Modbus/RTU

(optional)

SOURCE

H1

H1

H1

A

N

LOAD

100-240Vac to

Power Supply

To SCADA/Data Logging

System

Fuse or Breaker

(1A Recommended, 

otherwise smallest practical)

 

Содержание WattsOn-MCM

Страница 1: ...Technologies Inc WattsOn MCM Installation User Guide ...

Страница 2: ...sumes no liability for applications assistance customer s system design or infringement of patents or copyrights of third parties by or arising from the use of Elkor s devices ELKOR TECHNOLOGIES INC SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES SUSTAINED IN CONNECTION WITH ELKOR S PRODUCTS EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW FURTHERMORE ELKOR NEITHER ALLOWS NOR AUTHORIZES ANY OTHER P...

Страница 3: ...ting Status 17 3 6 Information Page 18 3 7 Diagnostics Page 18 3 8 Filesystem Page 18 3 9 Network Page 19 3 10 System Page 19 3 11 Changing the Administrator Password 19 3 12 Reading Registers 19 3 13 Posting Data to the Elkor Cloud 19 3 14 Posting Data to your own Web Server Advanced Feature 20 3 15 Customizing the Web Posting Format Advanced Feature 21 4 The Modbus Protocol 23 4 1 Protocol Overv...

Страница 4: ...3 6 6 Write Single Register 33 6 7 Write Multiple Registers 33 6 8 Mask Write Register 34 6 9 Read Write Multiple Registers 34 6 10 Diagnostic Functions 35 6 11 Get Comm Event Counter 37 6 12 Report Slave ID 37 7 Appendix B CT Wiring 39 7 1 Single Phase Installation 39 7 2 Two Split Phase Installation 40 7 3 Three Phase Installation 41 ...

Страница 5: ...not interrupted It provides a dynamic AJAX enabled web interface to configure the device and to display readings and can also send its data to a web server via HTTP POST at regular intervals using a highly configurable template based format The WattsOn MCM will store a backlog of data in the event of short temporary network outages to ensure any post information is not lost The unit accepts up to ...

Страница 6: ...C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C A B C VA VB VC N 1 11 10 20 9 19 8 18 7 17 6 16 5 15 4 14 3 13 2 12 Power Supply 100 240 Vac to 24VDC ETHERNET ACTIVITY SERIAL RESET REBOOT FAULT STATUS MB 24VDC 100mA OUTPUT AUX HMI Interface 100 240 Vac 24VDC Metering Node Metering Node PCI Slot Power Supply MCM V Voltage Isolator WMC COMM Mas...

Страница 7: ...ta reception and green indicates data transmission Red flashes without corresponding green flashes may indicate a misconfiguration of the serial port parameters if there are no other devices on the bus 1 8 Node Indicators Name Location Color Description Status Left Red Green Indicates the status of the node Green indicates proper functioning flashing green partial functioning such as when a firmwa...

Страница 8: ... one or more of the installed nodes A node may have failed or may have been unexpectedly removed The other non faulted nodes continue to function normally The Web Interface will show details about which node has faulted if possible The status LED on the faulted card may also be blinking green and red or be off Try re seating this card in its PCI slot or replacing it Fault solid red with status off...

Страница 9: ...he device REBOOT Center right Press to power cycle the device 1 12 Default Settings Ethernet IP Address Automatically obtained via DHCP if available Automatically configured via AutoIP if DHCP is unavailable Subnet Mask Default Gateway Passwords Username admin Password default admin RS 485 Modbus Serial mode Modbus RTU Baud rate 115200 Parity None Data bits 8 Stop bits 1 ...

Страница 10: ...ce Modbus is strictly read only on the WattsOn MCM 3 Mount in intended location see 2 4 p 13 4 Install metering nodes into PCI slots see 2 5 p 13 Nodes can also be added later even while the device is powered on 5 Connect current transformers CTs to the terminal blocks corresponding to the installed nodes see 2 6 p 14 CT polarity is important for some node types 6 Connect voltage inputs to the ter...

Страница 11: ...92 168 1 1 which will load the device s Web Interface If you have already installed one or more metering new nodes it may prompt you to configure the cards which can safely be skipped temporarily by clicking Finish Later Fore details about the device s Web Interface see Section 0 The Web Interface p 15 3 Click on the Network menu item under the Gateway heading to open up the network settings On a ...

Страница 12: ...starts up By default the WattsOn MCM uses DHCP If it has been configured to use a static IP configuration you can set it back to DHCP by clicking the DHCP radio button and clicking Apply To enter a static IP configuration click the Static radio button and the other fields will be available for editing You can enter an IP address subnet mask default gateway primary and secondary DNS servers If you ...

Страница 13: ...designed for wall mounting using the attached feet The below diagram shows the dimensions for the panel mounting feet 2 5 Node Installation Each node can meter up to three independent circuits and up to 20 can be installed in a single WattsOn MCM giving a total of 60 independent circuits Each node plugs in to one of the 20 PCI slots on the WattsOn MCM numbered 1 through 10 on the left side and 11 ...

Страница 14: ...erminal being the neutral line Line to line voltages of up to 600V may be present on these lines so proper electrical safety procedures should be followed during installation and maintenance according to local codes Line voltages of up to 600V line to lne on the WattsOn MCM V terminals are isolated from the rest of the WattsOn MCM s components and from the output ports 2 7 1 Fusing of Voltage Sens...

Страница 15: ...which contains features that pertain to the Ethernet Wi Fi gateway itself The center of the interface shows the current configuration status page Information by default On small screens the menu opens via a button at the top right of the screen which is shown with this symbol 3 2 Node Setup The first time the Web Interface is accessed or after any new nodes are added or removed the Configuration W...

Страница 16: ...nt and voltage channel respectively are displayed as well as the watts and power factor of the currently selected combination Very broadly speaking the correct combination usually has a relatively high power factor when compared to the incorrect combination though this is just a generalization If a mistake was made it can be corrected by reconfiguring the card at any time however previously accumu...

Страница 17: ...above the formula would be ushort 0x2003 2 5 Multiple registers can be added using the MB Point Generator for example to add two or more registers together 6 When finished click Apply 7 For details on the formula language used by this device see the separate document ETPORT API 3 4 2 Remove an Existing Point Click the icon resembling a trash can to delete a data point 3 4 3 Modify an Existing Poin...

Страница 18: ...he file desired 3 Clicking on a file will either cause its contents will either be shown in the browser if it is a text file or the browser will ask if you wish to download the file to your computer 4 To download a text file rather than view it use the browser s Save Page function which varies slightly depending on your browser a In recent versions of Mozilla Firefox click on the Firefox button an...

Страница 19: ...ce acquires its IP address automatically using DHCP it is possible that your router will assign a different IP address to the device after a reboot and you will need to enter that IP Address manually in your browser to return to the web interface For details on discovering the device s IP address see Section 2 3 Network Discovery and Network Settings p 11 3 10 System Page The system page allows yo...

Страница 20: ...ide scripting are beyond the scope of this document a sample script written in the PHP scripting language is provided below for reference The script reads the data from the HTTP POST and appends that data to the end of the log file called posts log html body php Place the contents of the HTTP POST into a variable postdata file_get_contents php input Save the data to a log file handle fopen posts l...

Страница 21: ...mplate enter it using two dollar signs which will be replaced with a single when the data is posted See the separate ETPORT API guide for details in writing custom templates After you have modified the template or created a new one as desired you can upload it by following the instructions in section 3 8 Filesystem Page 3 15 2 Template Modes Only global template mode is available on this device 3 ...

Страница 22: ...connection problem it will store failed posts in its internal memory and retry that post later on Posts are retried at the same interval that is configured for making new posts The device has four megabytes of internal storage available for buffered posts with each post being approximately the size of the posting template Buffered posts can be viewed by exploring the buffer directory in the Filesy...

Страница 23: ... MCM supports the following Modbus functions Function Name Function Code Description Read Holding Registers 03 0x03 Reads the data contained in one or more registers identical to function 04 on this device Read Input Registers 04 0x04 Reads the data contained in one or more registers identical to function 03 on this device Report Slave ID 17 0x11 Returns various information used to identify this d...

Страница 24: ...rst holding register is defined as 40001 For ease of integration this device treats both Holding Registers and Input Registers as identical therefore either 30000 based addresses or 40000 based addresses will work with the MCM though only 40000 based addresses can be written to Some PLCs and other devices describe Modbus addresses in this manner Register numbers Addresses are presented as decimal ...

Страница 25: ...channel you can use the following equation Offsetchannel Offset1 channel 1 length 2 For example as in the above table the offset of the 58th channel for a block beginning at offset 0x5000 with a register length of 4 bytes is calculated as follows Offset58 5000hex 58 1 4 2 Offset58 20480 114 Offset58 20594 Offset58 5072hex 4 1 5 Data Types Registers contain data in one of four different types Data ...

Страница 26: ...1 1 1970 GMT 0x202E 1 4 U Uptime Seconds since last boot 0x2030 1 2 U Maximum Number of Cards Always 20 0x2031 1 2 U Maximum Number of Modules Always 21 20 cards plus the WattsOn MCM V 0x2032 1 2 U Number of Nodes The current number of nodes cards installed 0x2033 1 2 U Number of Modules The current number of nodes cards installed plus 1 for each of the Voltage Isolator and Display 0x2034 1 4 BM C...

Страница 27: ... 0x47C9 must be read 0x47C8 is the most significant word Starting Offset Register Count Length bytes Type Description 0x4000 21 64 Str Card Friendly Names 0x4400 21 16 Str Card Class Names 0x4500 21 32 Str Card Part Numbers 0x4700 21 26 U Card Supported Parameter IDs 0x47A0 21 2 U Card Types 0x47C0 21 4 U Card Serial Numbers 0x4800 21 2 U Card Hardware Versions 0x4820 21 2 U Card Firmware Versions...

Страница 28: ... floating point values For example to read the Active Power of channel 5 the second channel on the node in slot 2 read registers 0x5108 0x5109 which is Offset RegisterLength ChannelNumber 1 or in this case 0x5100 3 5 1 Because it is a 2 byte register both 0x5108 and 0x5109 must be read 0x5108 is the most significant word Starting Offset Register Count Length bytes Type Description 0x5000 60 4 F Cu...

Страница 29: ...0F2 1 4 F Voltage B 0x60F4 1 4 F Voltage C 0x60F6 1 4 F Voltage AB 0x60F8 1 4 F Voltage BC 0x60FA 1 4 F Voltage CA 0x61A8 1 4 F Frequency 0x6278 1 2 U PT Ratio A Primary 0x6279 1 2 U PT Ratio A Secondary 0x627A 1 2 U PT Ratio B Primary 0x627B 1 2 U PT Ratio B Secondary 0x627C 1 2 U PT Ratio C Primary 0x627D 1 2 U PT Ratio C Secondary 0x6378 1 4 F Voltage Angle AB 0x637A 1 4 F Voltage Angle BC 0x63...

Страница 30: ...nterface fills out the Wizard with the same values used with the previous card however they can still be changed if necessary b The red fault light will turn off when the new card is configured 5 3 Reconfiguring a Node 1 Visit the device s Web Interface 2 Click on the Card Configuration Wizard button 3 Configure the new node as described in 3 2 Node Setup p 15 a You can safely skip any nodes that ...

Страница 31: ...osen by accident 4 The device will apply the new firmware and reboot This may take several minutes 5 7 2 Changing the Firmware of a Node or the WattsOn MCM V For this procedure to free Elkor tool Modbus Commander must be used It can be downloaded from Elkor s web site http elkor net bin mbcmdr_lite exe Note that energy accumulation will be paused on any node being updated while this process comple...

Страница 32: ...ansmit Transmitting 3 5 characters of 10 bits each therefore takes 35 9600 seconds or about 3 65 milliseconds Modbus Address This should match the address indicated on the hardware address switch or match the software configured value if the switch is set to F Function Code Available function codes are described in subsequent sections Frame Contents Varies with the function code as described in su...

Страница 33: ... 1 byte 1 byte 2 bytes 2 bytes 6 5 Read Input Registers On this device this command is identical to Read Holding Registers above but uses function code 4 instead of 3 6 6 Write Single Register This is the basic command used to write data to a single configuration register The structure of its frames is as follows Request Modbus Address Function Code Address Value CRC 1 63 6 0 65535 Hi byte Lo byte...

Страница 34: ...ddress And Mask Or Mask CRC 1 63 22 0 65535 Hi byte Lo byte Hi byte Lo byte CRC 1 byte 1 byte 2 bytes 2 bytes 2 bytes 2 bytes Response identical to the request Modbus Address Function Code Address And Mask Or Mask CRC 1 63 22 0 65535 Hi byte Lo byte Hi byte Lo byte CRC 1 byte 1 byte 2 bytes 2 bytes 2 bytes 2 bytes 6 9 Read Write Multiple Registers This function performs reads and writes in a singl...

Страница 35: ... the device s count of all messages slave messages communication errors and exceptions since power up Request Modbus Address Function Code Sub function Code Data always 0 CRC 1 63 8 10 0 CRC 1 byte 1 byte 1 bytes 2 bytes 2 bytes Response identical to the request Modbus Address Function Code Sub function Code Data always 0 CRC 1 63 8 10 0 CRC 1 byte 1 byte 1 bytes 2 bytes 2 bytes 6 10 3 Return Bus ...

Страница 36: ...a count of all Modbus messages that failed the CRC check upon reception Request Modbus Address Function Code Sub function Code Data always 0 CRC 1 63 8 12 0 CRC 1 byte 1 byte 1 bytes 2 bytes 2 bytes Response Modbus Address Function Code Sub function Code Data CRC 1 63 8 12 Counter value CRC 1 byte 1 byte 1 bytes 2 bytes 2 bytes 6 10 6 Return Exception Count This function returns a count of all Mod...

Страница 37: ...loader mode and 0xFF otherwise The text string is an ASCII text string containing the name of the product its input configuration mA mV or 5A and its hardware and software version The string is null terminated meaning a 0 is transmitted after the last character Example String Elkor Technologies W2 M1 mA Hardware 1 00 Firmware 1 00 While in bootloader mode the string returned contains the bootloade...

Страница 38: ...ELKOR TECHNOLOGIES INC Page 38 MCM USER MANUAL ...

Страница 39: ... VA VB VC N 1 11 10 20 9 19 8 18 7 17 6 16 5 15 4 14 3 13 2 12 Power Supply 100 240 Vac to 24VDC ETHERNET ACTIVITY SERIAL RESET REBOOT FAULT STATUS MB 24VDC 100mA OUTPUT AUX HMI Interface 100 240 Vac 24VDC RJ45 Ethernet Modbus TCP Webserver API optional RS 485 Modbus RTU optional SOURCE H1 H1 H1 A N LOAD 100 240Vac to Power Supply To SCADA Data Logging System Fuse or Breaker 1A Recommended otherwi...

Страница 40: ... 2 12 Power Supply 100 240 Vac to 24VDC ETHERNET ACTIVITY SERIAL RESET REBOOT FAULT STATUS MB 24VDC 100mA OUTPUT AUX HMI Interface 100 240 Vac 24VDC RJ45 Ethernet Modbus TCP Webserver API optional RS 485 Modbus RTU optional SOURCE H1 H1 A N LOAD 100 240Vac to Power Supply To SCADA Data Logging System Fuses or Breaker s 1A Recommended otherwise smallest practical H1 B Location of CTdepends on circu...

Страница 41: ...12 Power Supply 100 240 Vac to 24VDC ETHERNET ACTIVITY SERIAL RESET REBOOT FAULT STATUS MB 24VDC 100mA OUTPUT AUX HMI Interface 100 240 Vac 24VDC RJ45 Ethernet Modbus TCP Webserver API optional RS 485 Modbus RTU optional SOURCE H1 A N LOAD 100 240Vac to Power Supply To SCADA Data Logging System Fuses or Breaker s 1A Recommended otherwise smallest practical H1 B Location of CTdepends on circuit bei...

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