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18

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EM-481 

 

                                                                                                                                                

NOVATEK-ELECTRO

 

Parameter 

Range of 

values 

Factory 

setting 

Description 

Address 

Miscellaneous

 

 

 

 

 

Parameter is 
not used 

It is not used; it should be equal to 0 for compatibility. 

575 

– 629 

Enable auto-
matic restart of 
the device 

– 1 

0 - the periodic restart is disabled; 
1 - the device is restarted after a specified period of time. 

630 

Restart time, 
min 

– 7200 

120 

Used when automatic restart is enabled. 

631 

Enable restart 
mode automati-
cally only when 
there are no 
connections 

– 1 

It is used when automatic restart is enabled: 
0 - the device is restarted after a specified period of time since 
the start; 
1 - the device is restarted after a specified period of time since 
the last transmission via Ethernet or GSM networks. 

632 

MODBUS ex-
ception code 
generated when 
access is 
denied 

– 255 

0 - if the access to MODBUS registers is denied, the 
response to the client is not returned; 
1  -  255  -  if  you  deny  access  to  the  client  who  sent  the 
request, this exception code is returned; 

633 

MODBUS 
exception code 
generated 
when there is 
no response 

– 255 

11 

0 - if there is no response from the addressee (Gateway 
Timeout), the response to the client is not returned; 
1 - 255 - if there is no response from the request recipient, this 
exception code is returned to the client. 

634 

Parameter is 
not used 

It is not used; it should be equal to 0 for compatibility. 

635 

MODBUS 
exception code 
generated if 
there is no con-
nection to query 
addressee 

– 255 

10 

– If there is no connection to the query addressee (Gateway 

Path Unavailable), response is not returned to the client; 

–  255  –  if  there  is  no  connection  to  the  query  addressee, 

this exception code is returned to the client; 

636 

Enable RS-485 
slave mode 

– 1 

– Master mode: RS-485 is used to send queries; 

–  Slave  mode:  RS-485  is  used  to  receive  queries  from 

additional client; 

637 

First MODBUS-
identifier of  
RS-485 

– 255 

Parameters define a range of MODBUS identifiers used for  
RS-485. 
In the master mode the queries with addresses in this range 
(and also the broadcast ones with address 0) are sent via  
RS-485. 
In  the  slave  mode  the  queries  with  addresses  in  this  range 
(and  also  the  broadcast  ones  and  the  queries  to  EM-481 
address) are received via RS-485. 

638 

Last MODBUS-
identifier of  
RS-485 

– 255 

255 

639 

Connection to remote server of MODBUS TCP

 

 

IP-address of 
remote server 

IP- address 

192.168.0. 

112 

It  is  used  when  enabling  redirection  of  queries  to  MODBUS 
TCP  remote  server.  IP-address  of  the  remote  server 
wherewith connection is maintained. 

640 

– 643 

Port of the 
remote server 
connection 

– 65535 

502 

It  is  used  during  redirection  of  queries  to  the  remote  server. 
The remote server port is for MODBUS TCP connection. 

644 

Time to wait for 
response from 
remote server, 
ms 

–   

60 000 

1000 

It  is  used  during  redirection  of  queries  to  the  remote  server. 
After  the  query  transfer,  if  the  correct  response  failed  to  be 
received within this time interval, response waiting is stopped. 

645 

Standby time to 
repeated con-
nection to the 
remote server, 
ms 

– 240 

20 

It  is  used  during  redirection  of  queries  to  the  remote  server. 
After  connection  with  the  server  is  lost,  the  repeated 
connection will be performed after preset standby time. 

646 

 
 

Table 5.8 Continued 

 

Summary of Contents for EM-481

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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