Motec Systems E888 Manuale utente

E888/816

Expander Modules

User Manual

Contents

Introduction........................................................................ 1

Overview............................................................................. 2

Inputs.................................................................................. 3

Input Pin Configuration (ADL).............................................................................4

Outputs............................................................................... 7

Output Configuration...........................................................................................7

E8xx Diagnostic Information.......................................... 11

Test Analogue Inputs........................................................................................12

Test Auxiliary Outputs.......................................................................................12

Communications.............................................................. 14

CAN..................................................................................................................14

Firmware Upgrades...........................................................................................14

Appendices....................................................................... 15

Appendix A: General Specifications..................................................................15

Appendix B: Input Characteristics.....................................................................16

Appendix C: Output Characteristics..................................................................18

Appendix D: CAN Wiring – Multiple Device.......................................................19

Appendix E: E8xx to ADL Wiring.......................................................................20

Appendix F: E8xx to M800 Wiring.....................................................................21

Appendix G: E888 Pin List by Pin Number........................................................22

Appendix H: E816 Pin List by Pin Number........................................................23

Appendix I: E816 Connector.............................................................................24

The information in this document is subject to change without notice.

While every effort is taken to ensure correctness, no responsibility will be taken for the consequences of any

inaccuracies or omissions in this manual.

13 January, 2006

MoTeC Introduction 1

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.

This manual includes information on connecting a single expander unit to an

ADL or ADL2. The ADL2 along with the ADL2 Dash Manager software has

been designed to easily allow the connection of a second expander.

It is possible to connect a second expander unit to an ADL and a third or even

fourth unit to an ADL2 – please contact your MoTeC dealer for details in these

situations.

The SDL is capable of reading data from 8 thermocouples when connected to

an E888. It cannot read analog voltage inputs.

2 Overview

Overview

The E888 has the following inputs and outputs:

•8 Analog voltage inputs (AV 1-8)

•8 Thermocouple inputs (TC 1-8)

•2 Cold junction compensation thermistor inputs (CJC 1-2)

•4 Digital inputs (DIG 1-4)

•2 Switch inputs (DIG 5-6)

•8 PWM outputs (Aux 1-8)

The E816 has the following inputs and outputs:

•16 Analog voltage inputs (AV 1-16)

•2 Thermistor inputs (CJC1-2)

•4 Digital inputs (DIG 1-4)

•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

M880 ECU.

MoTeC Inputs 3

Inputs

E888 Thermocouple Inputs (TC1 – TC8)

The E888 has eight calibrated and compensated type K (-200 to 1250ºC)

thermocouple inputs. Thermocouple inputs are calibrated during production.

Note that the thermocouples numbered TC1 – TC8 correspond to pins AV9 –

AV16 in the Dash Manager Input pins setup.

Cold Junction compensations are performed using external sensors or the

E888 internal temperature sensor, according to the following rules:

•If only one of the two external cold junction compensation sensors (CJC1

or CJC2) is present then that sensor is used for compensations on all

thermocouple inputs.

•If both of the two external cold junction compensation sensors are present

then sensor CJC1 is used for compensations on TC1 to TC4, and sensor

CJC2 is used for compensations on TC5 to TC8.

•If neither of the two external cold junction compensation sensors are

present then the internal temperature sensor is used for compensations on

all thermocouple inputs.

Cold Junction Compensation Inputs (CJC1 and

CJC2)

The cold junction compensation inputs are used to measure thermistor (2 wire

temperature sensor) temperatures for thermocouple input compensation. If the

thermocouple inputs are not in use, or when using the E816, these inputs may

be used as general purpose temperature inputs.

CJC1/2 inputs have internal 1K pull-ups, and are calibrated to use Bosch 0 280

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).

4 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 – 4 can only be calibrated to measure frequency. If they

are used as On/Off switches, then the status information is available in the

CAN template ‘Expander Diagnostics’ – see below

Switch Inputs (DIG5 – 6)

These can be used to measure and On/Off style switch. The switches should

be wired so that the E8xx input is pulled to ground when the switch is activated.

Note: Digital inputs 5 and 6 are not included in the Input Pins setup. Instead

they are included in the CAN template ‘Expander Diagnostics’ – see below.

Input Pin Configuration (ADL)

Sensors connected to the E8xx inputs can be configured in the same way as

those connected directly to the ADL. This requires that the ADL is upgraded to

version 3.1 or later.

In Dash Manager, go to ‘Inputs – Communications’ and select an empty CAN

tab. Click on ‘Select’ and choose ‘Expander Inputs’ from the list.

Tabs for Expander Analog Volt and Expander Digital input pin configuration

can be found under the Dash Manager menu item ‘Inputs – Input Pins’.

The Expander type can be selected from the drop down list. The list of inputs

will then show the input name and pin numbers for that particular expander.

The 16 Analogue Volt and 4 Digital Inputs can now be configured the same

way as other ADL inputs by Selecting a channel and then assigning a

calibration. See the ADL Manual for more details on configuring sensor inputs.

MoTeC Inputs 5

6 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 7

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.

Frequency for PWM1/3/5/7is adjustable from 8Hz to 5kHz.

Duty cycle for PWM2/4/6/8 is adjustable from 0 to 100% in 20 steps.

Frequency for PWM2/4/6/8 is adjustable from 1Hz to 100Hz.

The PWM outputs each have high and low side drivers. A duty cycle sent to the

E888 is the low duty cycle ie:

•an output with 100% duty cycle is pulled low

•an output with 0% duty cycle is pulled high

If the frequency for an output is set to 0, then the output is turned on/off

according to the following rules:

•For a duty cycle of 0%, the output is off (ie: pulled high)

•For a duty cycle greater than 0%, the output is on (ie: pulled low)

All outputs are disabled until the first CAN message is received.

Outputs are disabled after no CAN messages have been received for one

second.

Output Configuration

Auxiliary Devices connected to the E8xx outputs can be configured in the same

way as those connected directly to the ADL. This requires that the ADL is

upgraded to version 3.1 or later.

In Dash Manager go to ‘Inputs – Communications’ and select an empty CAN

tab. Click on ‘Select’ and choose ‘Expander Outputs’ from the list.

8 Outputs

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