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Helmholz 700-651-CAN01, Manual

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3

 

System Overview 

3.1

 

Application and function description 

The DP/CAN coupler from System Helmholz GmbH allows you to 
connect any CAN stations to the PROFIBUS DP.  

The DP/CAN coupler must be parameterized as a PROFIBUS 
station in the Hardware Configurator. The necessary GSD files are 
supplied with the device. 

The PROFIBUS side is configured as a DP slave. The interfaces 
meet EN 50170 and are electrically isolated. The baud rate of 
9.6kBaud to 12Mbaud is detected automatically. The size of the 
input and output information does not exceed 320 bytes. 

The CAN bus interface meets ISO/DIN 11898-2 and is electrically 
isolated. 

The DP/CAN coupler can send and receive any CAN messages, 
both CAN 2.0A (11bit) and CAN2.0B (29bit). You can define 
messages with a fixed identifier whose data is always visible as an 
I/O image in the PROFIBUS. As an alternative, the DP/CAN 
coupler has a transmit and receive buffer for any CAN messages. 

 

 

 

10  

DP/CAN 

Coupler 

Summary of Contents for 700-651-CAN01

Page 1: ...00 651 CAN01 Manual Edition 5 25 06 2009 HW1 FW 1 5X and higher Order number of manual 900 651 CAN01 en Systeme Helmholz GmbH z Hannberger Weg 2 z D 91091 Großenseebach Phone 49 9135 7380 0 z Fax 49 9135 7380 110 l E mail info helmholz de z Internet www helmholz de ...

Page 2: ......

Page 3: ... Copyright 2009 by Systeme Helmholz GmbH Hannberger Weg 2 91091 Grossenseebach Germany Note We have checked the content of this manual for conformity with the hardware and software described Nevertheless because deviations cannot be ruled out we cannot accept any liability for complete conformity The information in this manual is regularly updated When using purchased products please heed the late...

Page 4: ...Revision history of this document Edition Date Revision 4 Notice about consistent data extended 5 18 05 2009 29 bit protocol implemented ...

Page 5: ... 3 5 Items supplied 12 3 6 Accessories 12 4 Configuration CAN Layer 2 13 4 1 Installing and parameterizing the device 13 4 2 Defining the I O address area in the PLC 16 4 3 Consistent data 17 4 4 Maximum parameter sizes and address ranges 17 4 5 Parameterizing transmit and receive messages 17 4 6 Parameterizing the Receive Object 18 4 6 1 11 bit protocol 18 4 6 2 29 bit protocol 19 5 Programming C...

Page 6: ...4 3 Receive Object Service 23 5 5 Transmit Object 24 5 5 1 11 bit protocol 24 5 5 2 29 bit protocol 25 5 6 PLC diagnostics 25 6 Appendix 27 6 1 Technical Data 27 6 2 Pin assignment 28 6 3 Further Documentation 28 DP CAN Coupler 6 ...

Page 7: ...vention regulations applicable to the application in question During configuration safety and accident prevention rules specific to the application must be observed Emergency OFF facilities according to EN 60204 IEC 204 must remain active in all modes of the machine system The system must not enter an undefined restart Faults occurring in the machine system that can cause damage to property or inj...

Page 8: ...tended for use as a programming manual and reference work by the configuring engineer It provides the installing technician with all the necessary data The DP CAN coupler is intended for use with a PROFIBUS DP network only For that reason the configuring engineer user and installing technician must observe the standards safety and accident prevention rules applicable in the particular application ...

Page 9: ...ure 0 ºC 60 ºC Before you start installation work all system components must be disconnected from their power source Danger of electric shock During installation application specific safety and accident prevention rules must be observed 2 1 Vertical and horizontal mounting The modules can be mounted either vertically or horizontally Permissible ambient temperature 0 to 60 ºC DP CAN Coupler 9 ...

Page 10: ...es meet EN 50170 and are electrically isolated The baud rate of 9 6kBaud to 12Mbaud is detected automatically The size of the input and output information does not exceed 320 bytes The CAN bus interface meets ISO DIN 11898 2 and is electrically isolated The DP CAN coupler can send and receive any CAN messages both CAN 2 0A 11bit and CAN2 0B 29bit You can define messages with a fixed identifier who...

Page 11: ...the PROFIBUS is running and the CPU is in run mode Slow blinking indicates that the CPU is in stop mode LED DP green A parameterization error on the PROFIBUS has occurred LED CAN yellow CAN frames are being received by the CAN bus 3 4 DIP switches The 8 switch DIP switch on the housing front is used for setting the PROFIBUS address of the device Any change to the switch position is only applied af...

Page 12: ...AN bus and 24V power supply CS with GSD files and instructions 3 6 Accessories Manual German English 900 651 CAN01 CAN bus plug connector 700 690 0BA11 CAN bus plug connector with cable connector 700 690 0BB11 CAN bus plug connector with axial cable outlet 700 690 0CA11 12 DP CAN Coupler ...

Page 13: ...r and the length of the CAN frame is transmitted via the PROFIBUS to the PLC application Any number of CAN messages can be sent with this type of Transmit Object Moreover this type of Transmit Object can also transmit the message cyclically at a fixed time 4 1 Installing and parameterizing the device Before you can use the DP CAN coupler with Layer 2 in the Hardware Configurator you must install t...

Page 14: ...You can assign a station address to the slave here 14 DP CAN Coupler ...

Page 15: ... baud rates 1 Mbps 500 Kbps 250 Kbps 125 Kbps 100 Kbps 50 Kbps 20 Kbps 10 Kbps Timer for Transmit Object You can set a time 10 ms to 1000 ms for cyclic transmission of the Transmit Object here If you select the option Deactivated the Transmit Object is always sent immediately and once only Stating an incorrect number of receive transmit objects results in data corruption or bus start errors Number...

Page 16: ... bus have been defined all data elements must be shown in the I O area of the CPU The first 6 elements must always be at the beginning of the list in the defined sequence The I O addresses are freely selectable The DI elements must be defined before the DO elements 16 DP CAN Coupler ...

Page 17: ...d Functions for S7 300 400 Volume 1 Section 16 i The maximum number of objects depends on the CAN protocol used 11 bit 29 bit 4 4 Maximum parameter sizes and address ranges You can define maximum 44 slots elements for 11 bits or 36 slots elements for 29 bits Of these 6 elements are already permanently assigned The maximum number of assignable input or output addresses is 240 bytes each but togethe...

Page 18: ...e upper 8 bits of the CAN identifier are first filtered with a mask acceptance mask and then compared with a predefined value acceptance code If this comparison is positive the CAN frame is entered in the Receive FIFO and the PLC is released 10 9 8 7 6 5 4 3 2 1 0 Received CAN identifier AcceptanceMask e g 11110000 AcceptanceCode e g 1011xxxx ignored Acceptance Mask 11110000 240 filters out the to...

Page 19: ... the PLC is released 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Received CAN identifier AcceptanceMask e g 11111111111110000000000000 AcceptanceCode e g 1111111111111111111011xxxx ignored Acceptance Mask 11111111111111111111110000 536870784 filters out the top 26 bits Acceptance code 1111111111111111111011xxxx 536870272 defines which frames are to be accepted afte...

Page 20: ...ge is received toggle bit Byte Bit Function 0 0 New frame Receive Object 1 New frame receive object 1 2 New frame receive object 2 3 New frame receive object 3 4 New frame receive object 4 5 New frame receive object 5 6 New frame receive object 6 7 New frame receive object 7 4 0 New frame receive object 32 1 New frame receive object 33 2 New frame receive object 34 3 New frame receive object 35 4 ...

Page 21: ... for transmit object 38 7 Send frame for transmit object 39 5 3 Transmit and receive objects Depending on the parameterized size of the object the receive objects DI x bytes always contain the data of the last CAN frame to be received with the corresponding CAN identifier Receipt of a new frame can be detected by the 5 bytes of the HANDSHK_IN area i All receive and transmit objects are defined as ...

Page 22: ... 7 6 5 4 3 2 1 0 Data length RTR CAN identifier 11 bit The receipt of a new frame is recognized by the inversion of bit 0 in byte 0 of the HANDSHK_IN area Once the message has been processed by the PLC program this must be acknowledged to the DP CAN coupler Acknowledgment is processed by the RecObjecCmd byte 5 4 2 29 bit protocol Byte Content of Receive Object 0 Len RTR 1 HighByte HighWord CAN ide...

Page 23: ...n the bit is inverted Bit Function ReceiveObjCmd 0 Acknowledge last Receive Object frame 1 reserved 2 Delete RecObjStatus Overflow error bit 3 Reset Receive Object FIFO 4 reserved 5 reserved 6 reserved 7 reserved A FIFO which can accept up to 24 messages has been implemented in the DP CAN coupler for the Receive Object If more than 24 messages are received without being fetched by the PLC program ...

Page 24: ...t two bytes 0 1 Byte 0 Byte 1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Data length RTR CAN identifier 11 bit Transmission of the message is initiated by inverting bit 0 in byte 0 of the HANDSHK_OUT area The Transmit Object can be transmitted via the device parameters of the DP CAN coupler cyclically by means of a timer Cyclic transmission via the timer is triggered by inverting the bit 0 in byte 0 of...

Page 25: ... 8 7 6 5 4 3 2 1 0 Low Word CAN identifier 16 bits Transmission of the message is initiated by inverting bit 0 in byte 0 of the HANDSHK_OUT area The Transmit Object can be transmitted via the device parameters of the DP CAN coupler cyclically by means of a timer Cyclic transmission via the timer is triggered by inverting the bit 0 in byte 0 of the HANDSHK_OUT area A change of transmit data is acti...

Page 26: ... IB 59 10 bytes For this purpose the maximum memory size of the I O image of the selected PLC must be taken into consideration P M 110 0 BYTE 10 copies the data into the marker memory area from MB 110 to max MB 119 10 bytes For this purpose the maximum memory size of the marker memory of the selected PLC must be taken into consideration P DB 13 DBX 0 0 BYTE 10 copies the data into the data block 1...

Page 27: ...y screw type terminal PROFIBUS DP interface Type Profibus DP to EN 50 170 Transmission rate 19 2 kbps to 12Mbps Pin Sub D connector 9 way Power supply Voltage 24V DC Current consumption 180 mA typ Permissible ambient conditions Operating temperature 0 C 60 C Storage temperature 25 C 75 C Degree of protection IP 20 Special features Quality assurance according to ISO 9001 2000 Maintenance Maintenanc...

Page 28: ...4 5 GND 6 VP power supply for terminating resistors 7 8 Data line A 9 3 way CAN connector no terminating resistor 1 CAN High 2 CAN GND 3 CAN Low 3 way power supply 1 GND 2 V 3 V 6 3 Further documentation Internet www can cia org CAN Specification 2 0 Part A Part B 28 DP CAN Coupler ...

Page 29: ...Notes DP CAN Coupler 29 ...

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