MoTeC Introduction Introduction This manual describes the functions and specifications of the E888/E816 expander modules and their configuration for use with a MoTeC ADL. These devices offer additional inputs and outputs into the ADL via a CAN connection. ECU Manager software is currently being developed that will allow the M800 family of ECUs to read information from the E888/816.
2 Switch inputs (DIG 5-6) • 8 PWM outputs (Aux 1-8) The E888 uses the two part 60 pin connector also used by the M400, M600 and M800 ECUs. The E816 uses a 66 pin Autosport connector, the same as that used by the...
130 023/026 sensors to read from -30ºC to 150ºC. Analog Voltage Inputs (AV1 – AV8 or AV1 – AV16) The E888 has eight 0-5V analog voltage inputs (AV1 to AV8), while the E816 has sixteen inputs (AV1 to AV16). These are suitable for Potentiometers, voltage output sensors and variable resistance (temperature) sensors (these require an external pull-up resistor to 5V).
Inputs Digital Inputs (DIG1 – DIG 4) DIG1 to DIG4 may be used to measure frequency. The frequency measurement range is approximately 1Hz to 5000Hz. Digital inputs should be pulled to ground as the inputs have an internal 2K7 to 12V pull-up resistor. Note: Digital Inputs 1 –...
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Inputs E888 Thermocouples Thermocouple inputs 1 – 8 correspond to Expander Analog inputs ExTC1 to ExTC8. The calibration used for these inputs is “E888 Expander Thermocouple” and can be found in the ‘Select Calibration’ list.
MoTeC Outputs Outputs Both the E888 and E816 include 8 Auxiliary Outputs that are individually controllable for frequency and duty cycle. They are known as PWM – Pulse Width Modulated – outputs. The outputs are in two groups (odd and even) with different characteristics as follows: Duty cycle for PWM1/3/5/7 is adjustable from 0 to 100% in 255 steps.
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MoTeC Outputs The tab for Expander Output configuration can be found under the Dash Manager menu item ‘Functions – Auxiliary Outputs’.
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Outputs The E8xx outputs can now be configured the same way as the ADL Auxiliary outputs by selecting an output and then setting the control channels and parameters. Ie: Outputs can be on/off, controlled by frequency, duty cycle or a combination of frequency and duty cycle.
MoTeC E8xx Diagnostic Information E8xx Diagnostic Information Additional status information is available from the E8xx along with the state of the 2 Switch Inputs and the temperatures measured on the 2 thermistor inputs. This information can be accessed by selecting an additional CAN template in the Dash Manager communications setup.
E8xx Diagnostic Information Test Analogue Inputs It is possible to view the current ‘live’ voltages on the expander’s analogue inputs using a PC connected to the E8xx via an ADL. In Dash Manager select the menu item ‘Online – Test – Analogue Inputs’. Then click on the tab ‘Expander Analog’.
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MoTeC E8xx Diagnostic Information 100% duty cycle corresponds to the output fully On (Low Voltage), 0% duty cycle corresponds to the output fully Off (High Voltage). The frequency should be chosen to suit the device.
Upgrades are performed over the CAN bus using the Dashsend utility with a MoTeC CAN cable. The Dash Manager installation adds an icon to the Start menu to perform the E888 firmware upgrade. See the item under ‘Start – Programs – MoTeC – E888 and E816 Expander...
MoTeC Appendices Appendices Appendix A: General Specifications Physical and Environmental Case Size 99 x 105mm x 40mm Weight E888 310g E816 320g Temperature Range -10 to 70°C Power Supply Operating Voltage 9 – 22V DC Operating Current 150mA (excluding sensor currents and outputs)
1°C Accuracy (excluding cold junction errors): • E888 case temperature 25°C, +/- 2°C Typical • E888 case temperature -10 to 70°C, +/- 4°C + 2% measured temperature Filtering Oversampled for anti-aliasing Update rate on CAN 100Hz (CAN address 0x0F0 or 0x0F8)
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MoTeC Appendices Resolution 1°C Accuracy -10 to 70degC measured temperature, +/- 1°C + Sensor accuracy Digital Inputs (Schmitt Trigger) Pullup resistor 2700 ohms to 5V Voltage range 0 to 15V Positive trigger threshold 3.5V max Negative trigger threshold 1.0V min Hysteresis 0.5V min Freq Range (for inputs 1-4)
MoTeC Appendices Appendix D: CAN Wiring – Multiple Device The CAN bus should consist of a twisted pair trunk with 100R (0.25Watt) terminating resistors at each end of the trunk. The preferred cable for the trunk is 100R Data Cable but twisted 22# Tefzel is usually OK.
E8xx Power and Ground Wiring Bat + Bat - A17, B8, B9 A10, A11, B15, B16 E888 E816 28, 29, 30, 37, 38, 39 13, 14, 15, 19, 20, 21, 22 Additional Power and Ground pins are provided to simplify wiring and to meet the current requirements of any devices connected to the PWM outputs.
E8xx Power and Ground Wiring Bat + Bat - A17, B8, B9 A10, A11, B15, B16 E888 E816 28, 29, 30, 37, 38, 39 13, 14, 15, 19, 20, 21, 22 Additional Power and Ground pins are provided to simplify and to meet the current requirements of any devices connected to the PWM outputs.
Appendices Appendix G: E888 Pin List by Pin Number The E888 uses a 34 + 26 pin connector pair with the following pin-out: Function Function TC1+ PWM1 TC1- PWM2 TC2+ PWM3 TC2- PWM4 TC3- PWM5 CJC1 PWM6 CJC2 PWM7 BATTERY +...
MoTeC Appendices Appendix H: E816 Pin List by Pin Number The E816 uses a 66 pin autosport connector with the following pin-out: Function Function (E816B) (E816B) PWM8 PWM7 CJC1 PWM6 BATTERY+ AV11 BATTERY+ AV10 BATTERY+ PWM5 DIGITAL IN 5 DIGITAL IN 6 AV12 AV14 0V COMMS...
Appendices Appendix I: E816 Connector Mating Connector Deutsch : AS6-18-35SN Wire Wire to suit connector : 22# Tefzel, Mil Spec : M22759/16-22 Crimp Tool Crimp Tool : M22520/2-01 Positioner for Crimp Tool : M22520/2-07 • Note that the Crimp Contacts are type 22D (this is needed to set the crimp tool correctly) Wire Stripping Tool The following tool is recommended...
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