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Shenzhen

 

3onedata Technology Co., Ltd 

11                                        

www.3onedata.com

 

fails, parameter settings will not be saved), avoid the user forgetting your own configuration. The product can be 

used to dial the code switch to restore factory settings set. 

In the converter enter configuration mode, to set the parameters in the software or software that is not connected to 

the converter. After choosing the conversion mode, open software parameters associated with the conversion mode, 

and set the parameters and not related to unavailable, avoid the error set.   

 

5.2.1 Conversion parameter 

Conversion mode 

The conversion mode includes four modes can be selected: transparent, transparent tape identification conversion, 

Modbus protocol conversion and data conversion (the  specific function of each mode see explain that the sixth 

chapter application). 

 

Conversion direction 

Bidirectional converter: serial bus data will be converted to the CAN-Bus, CAN-Bus data will also be converted to 

serial bus. 

Only serial bus to CAN-Bus: only the serial bus data will be converted to the CAN-Bus, but CAN-Bus data will not 

be converted to serial bus. 

Only CAN-Bus to serial bus: only the CAN-Bus data will be converted to the serial bus, but serial bus data will not 

be converted to CAN-Bus. 

 

By change the direction of choice, can eliminate the interference of data conversion is not required on the bus. 

 

Allow the CAN-Bus frame information forwarded to the serial frame: 

This parameter is used only in the transparent conversion mode, when selected, converter work will add CAN-Bus 

message frame information of the first byte in the serial frame. Frame information not to convert the CAN-Bus is 

not selected. 

 

Allow the CAN-Bus frame ID forwarded to the serial frame: 

This parameter is used only in the transparent conversion mode, when selected, when the converter operates will 

add  CAN-Bus  frame ID information between the serial frame data and frame information (if allowed frame 

information conversion). Frame ID of CAN-Bus is not selected when no conversion. 

 

Send identifier 

Send identification frame only in the transparent conversion mode available, said in the serial data is converted into 

a CAN-Bus  message,  CAN-Bus  message frames ID value; attention in identification mode conversion is invalid, 

because at this time send the frame ID by the serial frame data filling. 

 

The identifier (frame ID) is the actual CAN-Bus packet ID value (byte order from left to right for the high byte to the low byte), 
such as the value of "00 00 00 0A" (HEX), said the frame ID is 10. 
On the effective use and also    the "frame type", if the choice of the standard frame, then frame identifier is 11 effective, then the 
value range is 0 ~ 7FF (HEX), beyond the invalid, and only take low 11-bit identifier. 
If the choice is "extended frame", then the frame identifier is 29 effective, then the value range is 0 ~ 1F FF FF FF (HEX), beyond 
the invalid, and only a low 29-bit identifier.

 

Summary of Contents for CAN485

Page 1: ...Shenzhen 3onedata Technology Co Ltd CAN485 Interface Converter User Manual Version 1 0 0 Feb 2016 Shenzhen 3onedata Technology Co Ltd www 3onedata com...

Page 2: ...ks in this manual belong to their respective manufacturers Agreement As the product version upgrades or other reasons this document is subject to change without notice Unless other agreement this docu...

Page 3: ...configuration 10 5 2 Introduction of Software 10 5 2 1 Conversion parameter 11 5 2 2 COM parameter 13 5 2 3 CAN Bus parameter 13 5 2 4 Keys description 14 Chapter 6 Application Description 15 6 1 Tran...

Page 4: ...mounting and Wall mounting which is convenient for engineering application The board comes with a photoelectric isolation module complete electrical isolation control circuit and CAN Bus communication...

Page 5: ...ply Input voltage 9 48VDC Type of input 2 bits terminal block No load consumption 1 57W 9VDC Full load consumption 1 59W 9VDC Power support reverse connection Working environment Working temperature 4...

Page 6: ...Shenzhen 3onedata Technology Co Ltd 3 www 3onedata com Chapter 2 Hardware Description 2 1 Interface Description Top view Front and Rear view Side view...

Page 7: ...iption 2 2 1 Power Input CAN485 interface converter provide DC power input voltage input is the two terminal form plug type 2 core spacing of 5 08mm terminals wherein the power input range of 9 48VDC...

Page 8: ...to short circuit between the twisted pair ports RES and RES to achieve terminal resistor accession as shown below When the CAN485 converter is used as the CAN Bus network terminal the two pin is conn...

Page 9: ...Requirements Cable laying need to meet the following requirements 1 It is needed to check whether the type quantity and specification of cable match the requirement before cable lying 2 It is needed t...

Page 10: ...swerved as less as possible Swerving radius cannot be too small small swerving causes terrible loss of link Its banding should be moderate not too tight and should be separated from other cables 9 It...

Page 11: ...Shenzhen 3onedata Technology Co Ltd 8 www 3onedata com Chapter 3 Appearance and Dimension Appearance CAN485 Dimension Unit mm...

Page 12: ...ing List The first time use this product please check the packaging is intact or not and the attachment is complete or not at first Item Quality Interface Converter 1pcs User manual 1pcs Documentation...

Page 13: ...the DIP switch that RS 485 interface side of the DIP switch pin 2 Pin 2 is allocated to ON enable end the converter enter configuration mode Pin 2 is allocated to number end the converter power on in...

Page 14: ...on the bus Allow the CAN Bus frame information forwarded to the serial frame This parameter is used only in the transparent conversion mode when selected converter work will add CAN Bus message frame...

Page 15: ...to send a single character as the unit of time Here you can set the 2 10 character of the optional time The serial number of characters frame interval can be set only with the identity transformation...

Page 16: ...0bps Serial parity none even and odd marks spaces and stop these 6 options No matter what kind of check mode converter serial transmission of data bits is 8 No parity only add 1 start bit and 1 stop b...

Page 17: ...9 so the maximum filtering acceptance code 0x1F FF FF FF the invalid part of more than 29 bit identifier software only low 29 bit identifier Filter mask off code HEX Fill in the data format is 16 hexa...

Page 18: ...me If the converter detects the serial bus data immediately received and converted CAN Bus message frame information and frame ID is user pre configured keep these parameters in the serial CAN Bus mes...

Page 19: ...essage ID frame to fill all the bytes of serial frame 6 1 3 Conversion example 1 Serial frames conversion CAN Bus message The hypothetical configuration into CAN Bus message frame information for stan...

Page 20: ...N Bus parameters to send invalid identifier because the identifier transmitted ID frame filled by serial data in the frame 6 2 1 Frame format Serial bus frame With the identity transformation must obt...

Page 21: ...ID to continue converting serial frame until the conversion is complete 2 CAN Bus message to serial frame For the CAN Bus message immediately received a frame forwarding a frame when forwarding accord...

Page 22: ...Data 4 Data 5 Data 6 Data 7 Serial frame Data 1 Data 2 Data 3 Frame ID 1 Data 4 Data 5 Data 6 Data 7 Serial frame Address 0 Data 1 Address 1 Data 2 Address 2 Data 3 CAN ID1 Address 3 Data 4 CAN ID2 A...

Page 23: ...ter in which the role is still protocol verification and forward transmission support Modbus protocol it is not Modbus host or slave machine the user can according to the protocol of Modbus communicat...

Page 24: ...Segment Counter Data 2 Character 1 Data 3 Character 2 Data 4 Character 3 Data 5 Character 4 Data 6 Character 5 Data 7 Character 6 Data 8 Character 7 Segment Mark The message is segmented message or a...

Page 25: ...s of Modbus RTU frame into CAN Bus long segment with the segmented CAN Bus protocol The user receives in the CAN Bus node take the function code and data processing domain can be For CAN Bus Modbus pr...

Page 26: ...AN BUS is half duplex so the data conversion process to ensure orderly on both sides of the bus data If both sides at the same time to send a large number of data bus converter will likely lead to inc...

Page 27: ...get help in the following ways Internet service Make a call to our technical office Return or replace product 7 1 Internet Service Please visit http www 3onedata com 7 2 Make a call to our technical o...

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