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Mantracourt DSC User Manual

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  • Page 1 Manual DSC/DLC User mantracourt.com DSC/DLC...

  • Page 2: Table Of Contents

    DLC Wiring ........................................ 7 DSC Wiring ......................................11 DSC Toolkit ................................ 18 Overview ........................................18 What can the Toolkit do? ................................. 18 Installing the DSC Toolkit ..................................18 Toolkit Details ......................................19 Home ........................................19 Information ......................................25 Communication ....................................26 Save and Restore ....................................
  • Page 3 Bad Readings ...................................... 113 Unexpected Warning Flags ................................114 Problems with Bus Baud Rate ..............................114 Port problems ..................................... 114 Recovering a lost DSC/DLC ................................115 Appendix I - Known Issues ................................. 116 Finite Non-Volatile Memory Life ..............................116 CANopen ......................................116 Appendix J - Declaration of Conformity ............................

  • Page 4: Introduction

    Mantracourt’s DSC/DLC is a range of products for digitizing a strain-based bridge input such as a load cell. The DSC is a card type with pins for easy installation while the DLC is a disc designed to be fitted inside the pocket of a load cell or other sensor.
  • Page 5 Modbus is a standard protocol so multi vendor devices can all work happily using this standard protocol. Mantrabus is a hex based protocol which has fewer packet overheads. It is a proprietary protocol so only Mantracourt products can operate on the bus.

  • Page 6: Installation

    (Up to 1 W with a 15 V supply). The DSC is normally installed in a protective enclosure, such as a metal box. The pins can be plugged into standard (2.54 mm pitch) PCB header sockets or soldered directly into a host board or to connecting wires.

  • Page 7: Wiring

    2 seconds per pad. Excessive heat transferred to the PCB will result in damage. Do not use solder with a water soluble flux. This can leave a surface film which attracts moisture and degrades measurement performance. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 8: Dlc Wiring

    (mm from 0,0) Hole diameter Mounting hole +7.9 +6.2 +6.1 +7.9 +3.8 RS485-(B) +5.8 -6.6 RS485+ (A) +3.6 -8.1 Temp sensor DQ -1.3 -8.8 +EXC -7.5 -4.9 +SIG -8.8 -1.5 -SIG -8.0 +3.9 -EXC -6.3 +6.1 Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 9 Wiring Example Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 10 For bus rates greater than 500 kbps cable such as Belden 8132 is recommended. Pad Positions (mm from 0,0) Hole diameter Mounting hole -3.2 -7.9 -5.4 -6.6 CAN L CAN H -3.0 Temp sensor DQ -5.0 +EXC -7.5 -4.9 +SIG -8.8 -1.5 -SIG -8.0 -EXC -6.3 Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 11 Wiring Example Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 12: Dsc Wiring

    RS232 and RS485 versions of the DSC have the ability to reset the communication settings to defaults (station number 1 and baud rate 115200) by shorting the reset comms pads together whilst powering up the DSC. You will then need to power cycle the DSC for the changes to be applied.
  • Page 13 Mounting hole 2 -7.3 Mounting hole 3 -7.3 -7.0 -78.4 +EXC -78.4 +SIG -78.4 -SIG -78.4 -1.4 -EXC -78.4 -4.0 -78.4 -6.5 -7.3 -7.3 -7.3 -2.5 -4.8 -4.8 -4.8 -2.5 -2.2 -2.2 -2.2 -2.5 Wiring Example Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 14 RS232 and RS485 versions of the DSC have the ability to reset the communication settings to defaults (station number 1 and baud rate 115200) by shorting the reset comms pads together whilst powering up the DSC. You will then need to power cycle the DSC for the changes to be applied.
  • Page 15 +EXC -78.4 +SIG -78.4 -SIG -78.4 -1.4 -EXC -78.4 -4.0 -78.4 -6.5 -7.3 -7.3 -7.3 -2.5 -4.8 -4.8 -4.8 -2.5 -(B) -2.2 +(A) -2.2 -2.2 -2.5 Wiring Example Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 16 GND (x2) Ground for DTEMP and CAN IP/OP Digital In/Out Connection for DTEMP device (EXC- of DTEMP should be connected to GND or V-) V+/- Power supply for DSC (5.6-18 VDC) CANL/CANH CANbus connections Status LED. (see troubleshooting) Rear Item...
  • Page 17 -7.3 -7.3 -7.3 -2.5 -4.8 -4.8 -4.8 -2.5 CANL -2.2 CANH -2.2 -2.2 -2.5 Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 18 Wiring Example Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 19: Dsc Toolkit

    Although it is possible to fully configure the DSC/DLC over the com port using the correct protocol, Mantracourt recommend that the user carries out the vast majority of the configuration using the DSC Toolkit. The DSC Toolkit allows configuration without needing to understand how calibration etc needs to be applied.

  • Page 20: Toolkit Details

    Devices Here you can select the device that you wish to connect to. The full DSC/DLC product list is quite long so you can reduce it either by manually applying a text filter or selecting the required protocol at the top.
  • Page 21 ASCII Select the Serial Port that the device is connected to. Select the Baud rate of the DSC/DLC device that is connected. (Factory default 115200) Select the Station Number of the connected DSC/DLC device. (Factory default 1) Make sure that there are no other devices connected to the bus with the same station number as this will make communications difficult at best.
  • Page 22 Modbus RTU Select the Serial Port that the device is connected to. Select the Baud rate of the DSC/DLC device that is connected. (Factory default 115200) Select the Station Number of the connected DSC/DLC device. (Factory default 1) Make sure that there are no other devices connected to the bus with the same station number as this will make communications difficult at best.
  • Page 23 Mantrabus Select the Serial Port that the device is connected to. Select the Baud rate of the DSC/DLC device that is connected. (Factory default 115200) Select the Station Number of the connected DSC/DLC device. (Factory default 1) Make sure that there are no other devices connected to the bus with the same station number as this will make communications difficult at best.
  • Page 24 MantraCAN Select the Baud rate of the DSC/DLC device that is connected. (Factory default 500K) Select the Node ID of the connected DSC/DLC device. (Factory default 1) Select the connected CAN Controller. (Currently supported controllers shown in Appendix Select the ID Type (Factory default 11 bit) Make sure that there are no other devices connected to the bus with the same node ID as this will make communications difficult at best.
  • Page 25 CANopen Select the Baud rate of the DSC/DLC device that is connected. (Factory default 125K) Select the Node ID of the connected DSC/DLC device. (Factory default 127) Select the connected CAN Controller. (Currently supported controllers shown in Appendix Make sure that there are no other devices connected to the bus with the same node ID as this will make communications difficult at best.

  • Page 26: Information

    Apply/remove the current value as a tare, zeroing the display. (this is not stored in the switch device, only applied to this display) Format Number of decimal places for this display drop-down Dynamic Errors Live errors from the STAT parameter Latched Errors Latched errors from the FLAG parameter Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 27: Communication

    9600 19200 38400 57600 76800 115200 (factory) 230400 460800 (Ensure that the selected baud rate is available on the PC com port) Reboot Restart device once the new communication settings have been applied button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 28 Save Save the new communication settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 29 230400 460800 (Ensure that the selected baud rate is available on the PC com port) Reboot Restart device once the new communication settings have been applied button Save Save the new communication settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 30 230400 460800 (Ensure that the selected baud rate is available on the PC com port) Reboot Restart device once the new communication settings have been applied button Save Save the new communication settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 31 100K 125K 250K 500K (factory) 800K ID Length Select from: drop-down 11 bit 29 bit Reboot Restart device once the new communication settings have been applied button Save Save the new communication settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 32 On Change Only Interval Only active if trigger is interval. entry-field From 10 ms Message Bytes Enter any fixed message bytes manually here entry-field Source Data source, select from: drop-down All available parameters, see appendix () Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 33 Sub Format Data sub format, select from: drop-down None Reverse Bytes Reverse Words Reverse Bytes and Words Gain Gain to apply to the Source? entry-field Offset Offset to apply to the Source? entry-field Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 34 Save the MantraCAN settings button Start Streaming Send standard MantraCAN start message button Stop Streaming Send standard MantraCAN stop message button Clear Messages Clear current message list button Export Messages Save current message list to clipboard button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 35 Custom start streaming message Bytes 1-8?? entry fields Stop Streaming Set to zero for broadcast Node ID entry field Stop Streaming Custom stop streaming message Bytes 1-8?? entry fields Save Save current settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 36 500K 800K Heartbeat Interval Set in milliseconds. Set to zero to disable heartbeat entry field Reboot Restart device once the new communication settings have been applied button Save Save the new communication settings button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 37 Inhibit Minimum time between Change of State PDO transmissions entry-field Primary Primary mapping drop-down Select from: All available parameters, see appendix () Secondary Secondary mapping drop-down Select from: All available parameters, see appendix () Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 38 Puts the device into Pre Op mode button NMT Operational Puts the device into Operational mode button NMT Reset Node Reset to defaults button NMT Reset Comms Reset Communications to default values (Index range 1000h to 1FFFh) button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 39 Restore all parameters from index 1000h to 2001h button Execute Restore communications parameters from index 1000h to 1FFFh button Execute Restore CANopen node ID and bitrate to default (may result in loss of button communications) Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 40: Save And Restore

    Once saved this file can be selected, after clicking the Restore button, and the settings restored to the same module or to another module. Item Description Save Save the device’s configuration settings to a file button Restore Restore settings to the device from a previously saved file button Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 41: Logging

    Click and drag the chart using the right mouse button to pan around the data. Only useful when Autoscale is off. Pause Toggles between paused and running. When paused the chart data continues to be icon saved and will be populated when next resumed. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 42 The button caption will change to Back To Realtime Chart after the file has loaded. Clear Chart Clear all data from the chart. button Reset View Returns the chart to its default view and zoom level after zooming or panning the button chart. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 43: Data Rate And Filters

    Set in engineering units. Set to zero to disable filtration. Filter Steps Filtered output will be difference between previous output and latest reading divided entry field by number of steps. Set to zero to disable filtration. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 44: User Area

    This page is only available for firmware version 2.01 and above. Item Description STOR1-9 Name of storage location Float Floating point number entry field Integer Integer entry field Hexadecimal entry field String ASCII string entry field Update Save settings button Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 45: End User Calibration

    This is the output value after advanced calibration has been applied (CELL) value Calibrated This is the output value after end user calibration has been applied (SYS) value Format Select the format of the End User calibrated display drop-down Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 46 Apply ‘high’ load, allow to settle then click Calibrate button (Not available until value 1 has been acquired) Reset Clear any applied end user calibration button Last calibrated Date that the last user calibration was applied information Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 47 Enter ‘high’ output value required entry field Calibrate After entering the above values, click Calibrate to apply button Reset Clear any applied end user calibration button Last calibrated Date that the last user calibration was applied information Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 48 Description Input Units Advanced calibration units information Category Category that these units fit into information Convert output to Select the required output units from the available list selected units drop-down Convert Apply conversion button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 49 Item Description Turn on/off Switches in a 100k resistor across the strain gauge bridge to simulate a fixed change button in input. Ensure you click again to toggle off before taking any ‘real’ readings Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 50 Zero Value Shows the current value of zero entry field/information Manual entry of zero possible in this field Zero Now Set the current reading as zero button Remove Clear the current Zero Value button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 51 Enter minimum limit. If the SYS value is below this the SYSUR flag will be set entry field Cal Over (SMAX) Enter maximum limit. If the SYS value is above this the SYSOR flag will be set entry field Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 52 Manually enter the End User calibrated unit here. If you simply wish to convert from units already set in OEM calibration you could use the Simple Unit Conversion in the calibration tab. Item Description Units Text Enter the text required to be shown entry field Click to confirm, press escape to cancel button Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 53: Oem Advanced Calibration

    If the module has been protected, you will have to enter the passcode here to access the Advanced Calibration pages. Item Description Advanced Calibration Enter the correct passcode Access entry field Confirm passcode button Cancel Cancel passcode entry and return to previous tab button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 54 This is the mV/V input value before any calibration has been applied (MVV) value Calibrated Value This is the output value after end user calibration has been applied (CELL) value Format Select the format of the Advanced (OEM) calibrated display drop-down Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 55 Apply ‘high’ load, allow to settle then click Calibrate button (Not available until value 1 has been acquired) Reset Clear any applied OEM calibration button Last calibrated Date that the last OEM calibration was applied information Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 56 Enter ‘high’ output value required entry field Calibrate After entering the above values, click Calibrate to apply button Reset Clear any applied OEM calibration button Last calibrated Date that the last OEM calibration was applied information Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 57 Apply the next temperature (allow settle time) and click Acquire (must be greater button than the previous temperature) 5 Acquire Apply the next temperature (allow settle time) and click Acquire (must be greater button than the previous temperature) Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 58 Temperature Current temperature as detected by the DTEMP information Number of Disable temperature calibration or select the number of points required compensation points drop-down Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 59 Enter ‘high’ output value required entry field Acquire Apply ‘low’ load, allow to settle then click Acquire button Calibrate Apply ‘high’ load, allow to settle then click Calibrate button (Not available until value 1 has been acquired) Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 60 Enter ‘high’ output value required entry field Calibrate After entering the above values, click Calibrate to apply button Reset Clear any applied OEM calibration button Last calibrated Date that the last OEM calibration was applied information Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 61 5 Acquire Apply fifth load, allow to settle then click Acquire 5 button Enter sixth output value required entry field 6 Acquire Apply sixth load, allow to settle then click Acquire 6 button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 62 Enter seventh output value required entry field 7 Acquire Apply seventh load, allow to settle then click Acquire 7 button Number of Disable linearisation or select the number of points required linearisation points drop-down Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 63 Enter minimum limit. If the CRAW value is below this the CRAWUR flag will be set entry field Cal Over (CMAX) Enter maximum limit. If the CRAW value is above this the CRAWOR flag will be set entry field Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 64 Select from available units. If your required unit is not in the list, select custom to drop-down enter custom text. Copy to User Copy the currently selected units to the End User Calibration button Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 65 Make sure that you remember your passcode!! You will have to contact your supplier to unlock without it which may involve a charge Item Description Passcode Enter a passcode up to six digits. entry field (enter zero to disable password protection) Confirm the change of Passcode button Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 66: Advanced Usage

    CRAW and to set the CRAWUR and CRAWOR flags. Finally multipoint calibration can be applied to improve linearity. System Here another gain and offset can be applied, allowing an end user to tweak the output without messing up the CELL calibration. Finally, a system zero (SZ) can be applied. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 67: Changing Sensitivity

    Changing Sensitivity The DSC/DLC products are all designed with nominal input sensitivity of +/-2.5 mV/V. The absolute maximum bridge output that can be accommodated is +/-3 mV/V. It is possible to use bridges with a lower sensitivity (such as 1 mV/V) but the effective resolution will suffer as you will be only using a portion of the input range.

  • Page 68: Dsc

    To increase sensitivity, the Link Track is left in place, so that the fitted R appears in parallel (this gives better temperature stability). Its value should then be- �� �� 0.025 − 0.01) ⁄ ���������������� ���� �� Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 69: Specifications

    Specifications DLC and DSC Technical Specifications All Variants Set for 2.5 mV/V sensitivity. Parameter Typical Units Strain Gauge Excitation System 4 Wire Strain Gauge Excitation Voltage 4. 5 5.25 Strain Gauge Drive Capability 5000 ohms Strain Gauge Sensitivity mV/V Factory mV/V calibration 0.05...
  • Page 70 2. 1st Year 3. Max rate for CAN is 200 Hz RS232/RS485 Parameter Typical Units Output Data terminal RS485 (DSC offers RS232) Data transmission rate 2400 460 800 RS485 Output cable length (1) 1000 RS232 Output cable length (1) Notes.

  • Page 71: Appendices

    Messages consist of an identifier and payload, with arbitration resolving conflicts. CAN bus supports different bit rates, incorporates error detection and correction, and finds applications in automotive and industrial domains. It enables reliable and efficient data exchange among system components. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 72: Appendix B - Communication Protocol

    • From the ‘:’ to the final <CR> is the command ‘instruction’ (of read, write or execute type) • All instructions begin with an alphanumeric command identifier of up to 4 characters (see commands list below), and end with a non-alphanumeric (which may be the final <CR>). Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 73 DP=3 and DPB=5, the response string will be – +00032.100<CR> This is an ‘?’ <CR> sequence. The device rejected the command. There Are Several Possible Reasons For A NAK Response Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 74 (N.B. this does not apply to RS232, which has separate transmit and receive connections) The operation does not start automatically, i.e. an initial Ctrl-Q must be sent. This means that if there is • (for instance) a brief power interruption, output will stop. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 75: Mantrabus Ii

    Mantrabus-II is a two-wire system where data is transmitted & received over a common pair of wires. For this reason the framing character must not be sent in a reply from the responding DSC/DLC. The protocol ensures this does not occur by splitting byte data into nibbles with the exception of the framing character &...
  • Page 76 To reset station three (command 100), send the following.– Framing Station Command Data Character Address (note MS Checksum bit of last byte is set) 0Eh, 07h The response is then – 03h, 06h i.e. ‘station number’, ‘ACK’. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 77: Modbus Rtu

    The MODBUS protocol is a partial implementation of the “RTU” (binary) form of the MODBUS standard, sufficient to allow DSC/DLC units to coexist on a serial bus with other MODBUS-compliant devices. NOTE: Third-party applications for MODBUS communications are readily available (e.g. ModScan from Win-Tech software, www.win-tech.com, who offer a free trial version).
  • Page 78 01 AD checksum = hi, lo A Correct Response, With A Value -55.2317 (Hex C25CED51) Would Then Be [hex] station response function byte-count ED 51 C2 5C data AA D4 checksum = hi, lo Execute Command Example Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 79 00 00 00 00 data (value irrelevant) A0 B4 checksum = hi, lo The Acknowledge Response Is Then [hex] station response info copied from command ... 00 64 00 02 02 87 checksum = hi, lo Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 80: Mantracan

    CAN networks (eg CANopen or J1939). However, the only interaction the DSC/DLC will have with these CAN networks is via customizable start and stop streaming messages. It will not be possible to read or write any parameters or action commands with a non MantraCAN network.
  • Page 81 Then wait a timeout period for a message of the same ID marked as either Response or NAK descriptor. If a response descriptor is returned then this acknowledges receipt but does not contain data. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 82 If a response then this acknowledges receipt and does not contain data. Successful response from slave. CAN ID CAN Data Base ID + 1 Descriptor Command Index 11 or 29 bit Response (06) 1 Byte Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 83 E.G. could get 3.999974 instead of 4 E.G. for a byte write 240, 240.1 and 239.66 are all the same value Rounding Although rounding is applied when writing to integral values, data read from a device is not rounded off. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 84: Canopen

    Object Dictionary Summary DSC/DLC internal data values are mapped into the object dictionary in three distinct areas :– 1. The main output values are mapped into the ‘Device Profile’ area, at 6000h onward 2. Special control parameters, specific to the CANopen® version, are at 2000h onward 3.
  • Page 85 Error Management The DSC/DLC FLAG value is mapped to the profile object at 6001h. Flags set also cause appropriate bits in the standard Error Register (object index 1001h) to be set. In some cases, an Emergency telegram is also broadcast. In this case, the “Manufacturer Specific Error Field”...
  • Page 86 Type 8 bit PDOC2 TPDO 2 COBID 1801h Unsigned 0 = Use default of 0x280 + Node 32 bit See Note 3 PDOI2 TPDO 2 Inhibit 1801h Unsigned 0 = Disabled timer 16 bit Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 87 See details 0 = Disabled Mapping item 2 below PDOP4 TPDO 4 1A03h See details 0 = Disabled Mapping item 1 below PDOS4 TPDO 4 1A03h See details 0 = Disabled Mapping item 2 below Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 88 Some implementations of CANopen interpret this as being four bits, please contact us if you have problems. Note: The TxPDOs defaults have been mapped to the Manufacturers Specific Profile Area and not the Standardised Device Profile Area. Name refers to the Mantracourt assigned name. Manufacturer Specific Area Name Description...
  • Page 89 Shunt cal OFF 5054h OPON Digital Output On 5055h OPOFF Digital Output Off 5056h Table Key “...” - Denotes a range (e.g. CLK1...7 means “CLK1” to “CLK7”) See detailed descriptions in Parameter Detail General. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 90: Appendix C - Commands

    Dynamic filter steps EMPTY Reboot SNAP EMPTY Take snapshot (stored in SYSN) RSPT EMPTY Reset peak & trough SCON EMPTY Shunt cal ON SCOF EMPTY Shunt cal OFF OPON EMPTY Digital Output on (DSC only) Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 91: Parameter Detail General

    OPOF EMPTY Digital output off (DSC only) UINT8 Temp compensation n-points CT1..5 111..115 223..231 FLOAT Temp compensation temp points CTG1..5 116..120 233..241 FLOAT Temp compensation gain-adjust CTO1..5 121..125 243..251 FLOAT Temp compensation offset-adjust Parameter Detail General For full details of the interactions between the various parameters, see the Readings Process.
  • Page 92 System zero. Applied to SRAW to give SYS. Can be used to generate a net value, with SRAW then being gross. SYSN When SNAP command is triggered, the value of SYS is written to SYSN. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 93 The underlying ADC rate is 4.8 kHz for RS232 and RS485 devices. For CAN devices the underlying ADC rate is 1627 Hz. CAN devices maximum update rate is 200 Hz. Those results are then block averaged to give the required RATE. Requires a reset after changing. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 94 Gain value applied to CELL to give SRAW. This can be used to scale the original CELL calibration. SOFS Offset value applied to CELL to give SRAW. This can be used to offset the original CELL calibration. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 95 Switch 100K shunt cal resistor across bridge. Gives approximate change of 0.8 mV/V at nominal 2.5 mV/V with 350R bridge. SCOF Remove shunt cal resistor from bridge. OPON Open collector digital output switched on. OPOF Open collector digital output switched off. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 96: Command List Mantracan

    Number of Linearisation points CLX1..7 Linearisation raw-values 51..57 CLK1..7 Linearisation corrections 61..67 SGAI System gain SOFS System offset SMIN System range min SMAX System range max USR1..9 User storage values 81..89 FFLV Dynamic Filter Level Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 97 Message 1 Packet length ( 1 – 8) MSG2B1 Byte 1 value MSG2B2 Byte 2 value MSG2B3 Byte 3 value MSG2B4 Byte 4 value MSG2B5 Byte 5 value MSG2B6 Byte 6 value MSG2B7 Byte 7 value MSG2B8 Byte 8 value Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 98 Custom Start ID High SONB1 Custom Start Data Byte 1 SONB2 Custom Start Data Byte 2 SONB3 Custom Start Data Byte 3 SONB4 Custom Start Data Byte 4 SONB5 Custom Start Data Byte 5 Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 99 BPS can only accept the above values. Requires a reset after changing. Also note that the new setting will be required to reconnect to the device and the connected hardware must support the new baud rate. IDSIZE Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 100 The messages can be streamed at intervals or when the internal parameter value changes or both. The highly configurable nature of the messages allows the DSC/DLC to stream custom data messages on a variety of CAN based networks.
  • Page 101 1 - Byte Unsigned 0 to 255 2 - Byte 2s Compliment -128 to 127 3 - Byte Sign Bit -127 to 127 The most significant bit indicates a negative number when set to 1. Mantracourt Electronics Limited DSC/DLC User Manual...
  • Page 102 I.e. if the incoming message contained only two data bytes then these will be compared to SONB1 and SONB2 and if they match then the streaming will start. This technique can be used to let the DSC conform to any CAN based start and stop message. I.e. support NMT messages in CANopen®.
  • Page 103 The high word value of the message identifier to stop the streaming. This will contain the decimal value of the higher word (2 bytes) of the ID. Not necessary if the DSC is set for 11 bit identifiers (CAN 2.0a) SOFFB1 The decimal value of data byte 1 that the incoming message must match to stop streaming.

  • Page 104: Parameter List Canopen

    SOFFB8 The decimal value of data byte 8 that the incoming message must match to stop streaming. Parameter List CANopen CANopen Communications profile area. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 105: Appendix D - Product Code List

    DSCH4MOD Card, high stability, RS485, Modbus RTU DSCS4MOD Card, industrial stability, RS485, Modbus RTU DSCHMCAN Card, high stability, MantraCAN DSCSMCAN Card, industrial stability, MantraCAN DSCHCOP Card, high stability, CANopen DSCSCOP Card, industrial stability, CANopen Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 106: Appendix E - Accessories

    A shielded twisted pair is recommended, with a maximum length of 10m, the shield being connected to the load cell body or SH if DSC. Specification Parameter...

  • Page 107: Dsj1

    Please ask for details. When a DSC card or DLC is fitted to the DSJ1 PCB it will enable the connection of a load cell via a two-part connector, with a five-way two-part connector for the communications output and a D type 9 pin connector, as well as connections for digital inputs and outputs and external temperature sensor.
  • Page 108 5-way two part connector; power and comms V+/CAN V+ Power supply positive for DSC/DLC (5.6-18 VDC) +(A)/(TX)/CAN H Comms CH/CAN SH Shield -(B)/(RX)/CAN L Comms -V(GND)/CAN GND Power supply negative for DSC/DLC 8-way two part connector; load cell and temperature...

  • Page 109: Dsj4

    DSJ4 Overview The DSJ4 facilitates the connection of up to four load cells and DSC cards for communications to a PC or PLC using CAN or RS485 protocols. Designed to take four DSC cards in a single enclosure, the DSJ4 offers a convenient and practical solution to the installation of digital load cells with platforms, silos and any weighing systems where connection to PC and PLC’s...
  • Page 110 Digital input SHLD Shield 5-way two part connector; power and comms CAN V+/V+ Power supply positive for DSC (5.6-18 VDC) CAN H/(A) Comms CAN SH Shield CAN L/(B) Comms CAN GND/(-V) Power supply negative for DSC J10-11 9 pin D-type connector; power and comms (note: this is different than the DSJ1)

  • Page 111: Appendix F - Digital Filtration

    % of step change value is as follows. % Of Final Value Time To settle 0.01 x 30 = 0.3 seconds 0.01 x 30 x 5 = 1.5 seconds 99.9% 0.01 x 30 x 7 = 2.1 seconds Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 112: Appendix G - Toolkit Supported Can Controllers

    Appendix G - Toolkit Supported CAN Controllers Ixxat USB to CAN Compact v2 Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 113: Appendix H - Trouble Shooting

    The typical chain runs as follows, • PC software (port connection, baud rate, station number, protocol) • PC USB (working) • PC CAN drivers • USB-CAN device • Bus wiring • Device (wiring, ID, bit rate, working) Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 114: Bad Readings

    Check wiring, take voltage level readings and again if possible use a known good device and set up. 3. Check the sensor is connected properly, and has some resistance across excitation wires, and around 350 ohms across output wires (when disconnected from DSC/DLC). 4. Check for damaged DSC/DLC device by replacement...

  • Page 115: Unexpected Warning Flags

    One of these is that the latency is set to 16 ms. This will severely limit the speed that communications can take place. To change it, go into Windows Device Manager and find the relevant com port. Go to Port Settings and Advanced. Change latency to 1 millisecond. Click OK. Mantracourt Electronics Limited DSC/DLC User Manual...

  • Page 116: Recovering A Lost Dsc/Dlc

    536,870,911 for Can 2.0b 29 bit identifiers. For this reason the DSC/DLC has a built in mechanism to reset the base ID back to the default value of 1. To activate this recovery mode the device must be sent 2 commands over the CAN Bus on the broadcast ID of 0 with the second command being sent within 2 seconds of the first.

  • Page 117: Appendix I - Known Issues

    It may be that in some interpretations of CANopen the length of data in the PDO is referred to in bits. In the DSC/DLC CANopen devices it is referred to in bytes. This usually is not a problem but some controllers may struggle to decode the data.

  • Page 118: Appendix J - Declaration Of Conformity

    The Drive, Farrington, Exeter, Devon, EX5 2JB Country: United Kingdom Declare under our sole responsibility that the following products: DSC series and DLC series Are in conformity with the following relevant Union harmonisation legislation: LVD directive 2014/35/EU EMC directive 2014/30/EU...

  • Page 119: Appendix K - Warranty

    (1) year from the date of dispatch. If the 'Mantracourt' product you purchase appears to have a defect in material or workmanship or fails during normal use within the period, please contact your Distributor, who will assist you in resolving the problem.
  • Page 120 Applies To: DSC Product Range Part Number: 517-950 Issue Number: 01.00 Dated: May 2023 In the interests of continued product development, Mantracourt Electronics Limited reserves the right to alter product specifications without prior notice. www.mantracourt.com Mantracourt Electronics Limited DSC/DLC User Manual...

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