ORT/RWT/SGR Series Transducer
CAN Bus Interface
Revision 6
– February 2021
Page 1: ...ORT RWT SGR Series Transducer CAN Bus Interface Revision 6 February 2021...
Page 2: ...ementation 4 Software Implementation 5 CAN Messages 5 Torque 6 Speed 7 Zero Command 7 Transducer Control 8 CAN Configuration 9 Contact Details Sensor Technology Ltd Apollo Park Ironstone Lane Wroxton...
Page 3: ...ogram which accompanies our digital based torque transducers The customisation is done via the USB interface on the transducer Compatible Models This CAN bus manual is for transducers from the advance...
Page 4: ...s interface replaces the standard RS232 capability of the transducer In order for the signals to be properly received the CAN bus needs to be correctly terminated This can be accomplished by using a 1...
Page 5: ...t torque in 3 different formats floating point fixed point integer or in ASCII Speed can be output as either an integer or ASCII The Endianness or byte order for non ASCII formats can be controlled by...
Page 6: ...number is fixed with 3 decimal places i e torque x 1000 For example 100 1231 would be output as 100123 ASCII The ASCII format outputs data in a human readable text format Text strings are 8 character...
Page 7: ...e 1000000 Output Rate The output rate is dependent on the configuration selected The internal capture rate in period count mode is dependent on the rotational speed The capture rate will increase and...
Page 8: ...Transducer Control 5 Once the program has loaded a Search for connected transducers dialog box will be shown Select AUTO USB from the Select Port To Search list and click Search The purpose of this di...
Page 9: ...interface SJA1000 Baud Rate Registers The BTR0 and BTR1 values show the equivalent register settings for a Philips NXP SJA1000 stand alone CAN controller running with a 16 MHz clock and operating in...
Page 10: ...Variable CAN messages are output at the internal capture rate of the data value If the capture rate exceeds the maximum allowed for the selected baud rate the output rate will be capped The maximums f...
Page 11: ...SGR Series Transducer CAN Bus Interface RWT3536IM Revision 6 February 2021 Page 11 Table 5b ASCII Mode 8 Bytes Records per Second Baud Rate 1 Mbps 500 Kbps 250 Kbps 100 Kbps 1 5 50 250 500 1000 1500 2...
