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EM-481 

 

                                                                                                                                                

NOVATEK-ELECTRO

 

This  Operating  Manual  is  intended  to  familiarize  you  with  the  design,  the  requirements  for  safety,  operation  and 

maintenance procedures of the RS-485 interface controller EM-481 (hereinafter referred to as the "device", "EM-481"). 

 

The device meets the requirements of the following: 

 EN 60947-1, Low-voltage switchgear and controlgear; Part 1; General rules; 

 EN 60947-6-2, Low-voltage switchgear and controlgear; Part 6-2; Multiple function equipment; Control and protective 

switching devices (or equipment) (CPS); 

 EN 55011,  Industrial,  scientific  and  medical  RF  equipment;  Electromagnetic  interference  characteristics;  Limits  and 

methods of measurement; 

 IEC  61000-4-2,  Electromagnetic  compatibility;  Part  4-2;  Testing  and  measurement  techniques;  Electrostatic 

discharge immunity test. 

 

Harmful substances in amounts exceeding maximum permissible concentrations are not available

The device versions are listed in Appendix A. 

 

Terms and abbreviations: 

 

10Base-T

 is Ethernet standard for twisted pair communication with the speed of 10 Mbit/s;

 

 

100Base-T 

is Ethernet standard for twisted pair communication with the speed of 100 Mbit/s;

 

 

8P8C/RJ45 

is unified connector used for 10Base-T/100Base-T network connections; 

 

ASCII 

is standard character encoding table;

 

 

Client 

is the device, which is addressing the other device (server) with the query to perform certain functions;

 

 

Display 

is OLED

 

graphical led; 

 

DHCP 

–  It  is  the  protocol  that  allows  network  nodes  automatically  obtaining  the  parameters  of  TCP/IP  (IP 

address);

 

 

Ethernet 

is a standard for packet network communication and transmitting data between units (e.g., PCs); 

 

FTP 

is FTP protocol of file transfer according to TCP/IP standard; 

 

GPRS

 is technology of data packet transmission by mobile communication; 

 

GSM

 The standard of digital mobile communication of the second generation; 

 

HSPA

  - The technology of high speed packet data transmission using mobile communication; 

 

HTTP

 is a protocol for transferring Web-pages and other data using "client-server" technology;

 

 

Indicator

 is single LED indicator; 

 

Internet

 is the global routing system of units for storing and transferring data;

 

 

IP (protocol) 

is routable protocol for transferring data by Ethernet. It is a part of TCP/IP and used for Internet;

  

 

IP (address)

 is a node address, which is unique within a single network, operating via IP protocol;

 

 

IPv4

 is four byte IP-address;

 

 

MAC (address) 

– is the address used for device authentication during Ethernet transmissions. It is usually 

unique although qualified personnel can change it under certain circumstances;

 

 

MAC-48 

is six byte MAC-address;

 

 

MODBUS

  is  the  standard  and  protocol  for  packet  communication  using  the  "client-server"  technology  for 

industrial electronic units; 

 

MODBUS RTU

 is the communication protocol of the unit for byte wise transfer of the packet; 

 

MODBUS ASCII 

 is communication protocol of the units for the transfer of packet in the form of ASCII-symbols; 

 

MODBUS TCP

 is the protocol for transferring Modbus packets using the TCP/IP standard; 

 

Packet

 

is a block of data to be transmitted between devices; 

 

RS-485/EIA-485

 is network standard for communicating units using the twisted pair;

 

 

Server 

is a unit, which performs specific functions upon query of other units; 

 

SMS

 is standard and technology of transmitting the brief messages via mobile communication;

 

 

TCP/IP

  is  the  standard  and  a  set  of  protocols  for  packet  transferring  data  via  the  networks  with  delivery 

verification;

 

 

Twisted pair

 

is  the  pair of insulated  conductors  inside  the  cable,  which  are  twisted  together  to  reduce  the 

distortion of the transmitted signals;

 

 

UMTS -

 

The third generation mobile communication system for GSM-based networks; 

 

WEB

 is the system for accessing documents on the servers, used in the Internet;

 

 

WEB-page

 is the document, file and resource, which is available on the Web-server;

 

 

WEB-browser

 is client for accessing the WEB-pages, which is primarily using the HTTP protocol.

 

 

1. SERVICE 
1.1. Device service 

EM-481  provides  data  collection  from  connected  MODBUS  devices,  data  transfer  to  the  server,  data  access 

(via  MODBUS  TCP  or  SMS  text  messages),  event  tracking  and  response  to  events  (sending  SMS  notifications, 
recording values to MODBUS devices). 

EM-481 provides: 

  Flexible  options  of  connection  (via  wire  or  wireless  communication

  GSM  or  UMTS

,  automatic  method 

selection of communicating with a server, automatic or manual selection of GSM provider and communication 

Содержание EM-481

Страница 1: ...development and production complies with the requirements of ISO 9001 2015 Dear Customer NOVATEK ELECTRO Ltd Company thanks you for purchasing our products You will be able to use properly the device...

Страница 2: ...d via RS 485 9 5 2 2 3 Access to MODBUS network using MODBUS TCP 9 5 2 2 4 Access to MODBUS network using SMS 9 5 2 2 5 Data collection and event tracking 10 5 3 Configuration 10 5 3 1 General 10 5 3...

Страница 3: ...THE HOUSING IT IS NOT ALLOWED WATER PENETRATION ON TERMINALS AND INTERNAL ELEMENTS OF THE DEVICE During operation and maintenance the regulatory document requirements must be met namely Regulations fo...

Страница 4: ...ing and transferring data IP protocol is routable protocol for transferring data by Ethernet It is a part of TCP IP and used for Internet IP address is a node address which is unique within a single n...

Страница 5: ...showing of warnings about detected faults 4 GSM LED is blinking every 3 sec when there is connection via GSM network or UMTS it is blinking 3 times per second while data exchanging via GPRS or HSPA 5...

Страница 6: ...ort circuit output voltage of driver RS 485 maximum mA 250 Resistance of in built terminator Ohm 1000 The recommended number of connected devices in Modbus network when the input current of receivers...

Страница 7: ...vice operation Check the device for damage after transportation in case of such damages detection contact the supplier or the manufacturer Carefully study the Operating Manual pay special attention to...

Страница 8: ...in the SIM slot and connect the GSM antenna to the ANT connector SMA F connector 5 2 Using the device 5 2 1 General After power is turned on all indicators except LAN and GSM light up and EM 481 perf...

Страница 9: ...addresses identifiers If the query could not be redirected for example in the RS 485 slave mode if the connection to the remote MODBUS TCP server was terminated the EM 481 can generate and send the MO...

Страница 10: ...ters of address in Ethernet network if Ethernet is used and server address to which EM 481 is connected automatically The adjustable parameters are described in items 5 3 2 The parameters remain saved...

Страница 11: ...ess MAC 48 from left to right 6 Table 5 5 Parameters describing the device Parameter Description Address Device type The code that defines the MODBUS product by the manufacturer 23 EM 481 0 Firmware v...

Страница 12: ...d access tabs 0 no permission 1 there is permission Bit 6 It is always as 1 Bit 7 Permission for the connected client to configure EM 481 the same as register 121 0 no permission 1 there is permission...

Страница 13: ...on to remote server Modbus TCP 0 connection to the remote server is set 1 connecting to the remote server 2 65534 the number of seconds before reconnecting 65535 Connection to the Modbus TCP server is...

Страница 14: ...parameters Parameter Range of values Factory setting Description Address Ethernet network Static IP address IP address 192 168 0 111 If the dynamic addressing is switched off or not available IP addre...

Страница 15: ...vice provider up to 24 characters 392 415 APN address of host Character string Provided by the GSM service provider up to 34 characters there cannot be spaces in a string 416 449 MODBUS TCP clients Co...

Страница 16: ...tart bit 7 data bits 2 stop bits or parity bit and stop bit total is 10 bits The non standard byte formats register 461 values 4 and 5 are not available in this case format 3 2 stop bits is used inste...

Страница 17: ...ssword This string should not have any spaces 540 549 The specified password for recording per mission via MODBUS TCP in devices using RS 485 Character string It is used to access devices connected to...

Страница 18: ...Gateway Path Unavailable response is not returned to the client 1 255 if there is no connection to the query addressee this exception code is returned to the client 636 Enable RS 485 slave mode 0 1 0...

Страница 19: ...aylight saving time 1 10 10 It is used if you selected the automatic transition to daylight saving time on the specified days Week of the month when the clock will be set one hour ahead 1 5 week of th...

Страница 20: ...f clock for synchroniza tion s 1 180 2 It is used if you have enabled synchronization of clocks with the server clock The synchronization is performed after receiving the server time if the difference...

Страница 21: ...ears once again 5 3 4 EM 481 configuring via MODBUS interface Setting via Modbus interface shall be provided if the device is connected using the Modbus client which is supporting the Modbus TCP proto...

Страница 22: ...return and transfer it to the warranty post warranty service please indicate detailed reason for the return in the field of the claims data 8 TRANSPORTATION AND STORAGE The device in the original pack...

Страница 23: ...in the GSM network is displayed alternately with the IP address in the local Ethernet network The operation speed with remote Modbus TCP server is improved The speed of GSM operation is increased 30...

Страница 24: ...481 Parameter Value Addressing using DHCP Yes IP address 192 168 0 111 Subnet mask 255 255 255 0 Gateway 192 168 0 1 With the factory settings of the EM 481 two ways are possible for communicating wi...

Страница 25: ...ter closing the windows answer yes 3 Connection to Internet via Ethernet ATTENTION THE USER IS STRONGLY RECOMMENDED TO CONNECT THE UNIT TO INTERNET UNDER THE SUPERVISION OF THE LAN SYSTEM ADMINISTRATO...

Страница 26: ...om the client over the long period the access returns to locked mode ATTENTION DURING ANY CONNECTIONS EXCEPT FOR TRANSMITTING VIA GSM AND COMMUNICATION WITH SERVER VIA SPECIAL PROTOCOL EM 481 THE PASS...

Страница 27: ...age in order to delete the device from Overvis system That guarantees that the EM 481 device will be used only by the authorized users Using the instruction on the site of Overvis system connect to EM...

Страница 28: ...again the internal memory to re read the program Files can have arbitrary names and extensions and placed in subfolders of the folder TASKS Files placed directly in the folder TASKS allow you to use...

Страница 29: ...s The file can contain comment lines that begin with and are ignored when reading the file Correct example Incorrect example This is a comment VARS number of seconds per minute 0 VAL 60 1 VAL 1 This i...

Страница 30: ...eters in the task file which are accessed through RS 485 and GSM interfaces By default if no modifier is specified it is 0 PARAMACTUAL ushort Frequency of reading the parameters in seconds It allows o...

Страница 31: ...in a single query WRHMULTIPLE uchar uchar Device can write only using function 16 in the storage registers The first argument specifies how many registers can be read in one query the second one deter...

Страница 32: ...point 100 F32BLEEP3R 32 bit with reverse order of bytes and floating point 1000 F32WLEEP0R 32 bit with reverse order of words and floating point F32WLEEP1R 32 bit with reverse order of words and floa...

Страница 33: ...all variables in the specified range VARSMINIDX var ref var ref The number of the minimum variable in the specified range VARSMAX var ref var ref Maximum of all variables in the specified range VARSMA...

Страница 34: ...ref Copy of the condition CONDIS int Set to the specified value The condition is met if the value is not 0 It can be used for adjustment or for unconditional actions for each update cycle NOT cond ref...

Страница 35: ...has the following format index action type argument 1 argument 2 Index the sequential number of the line The types of the arguments int 32 bit signed integer alarm reason is the number of reason of t...

Страница 36: ...n the text 3 MODBUS ID of the device is OM 310 240 is the register address which is monitored for the fault enabling relay 1 depending on bit 0 of register 240 of device 3 META 8th version of Protocol...

Страница 37: ...hieving the temperature respectively the lower or upper limits These registers are read only To change them you should be in configuration mode see it 5 3 4 then write the desired values to addresses...

Страница 38: ...VARGEVAR V2 V1 in other cases do not change the hysteresis current value 2 CONDIS 1 VARS the desired hysteresis is selected from V3 V5 according to the conditions of C0 C2 6 VARSSELBYC V3 C0 CONDS is...

Страница 39: ...ting select the file of updating The procedure for file selection is given in Table D 2 To cancel the updating cut off the power supply of EM 481 or wait until automatic completion of updating mode Ta...

Страница 40: ...Similar to No 2 but the file with an error has less priority The error is automatically corrected with available files of updating 4 The files of updating are not available Escape from the mode of upd...

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