AXIOMATIC SAEJ1939 Manuale utente

USER MANUAL UMAX021610

Version 2A

UNIVERSAL INPUT,

SINGLE OUTPUT VALVE

CONTROLLER with LED

SAEJ1939®

USER MANUAL

P/N: AX021610 (250kbps)

P/N: AX021610-01 (500kbps)

P/N: AX021610-02 (1Mbps)

User Manual UMAX021610. Version: 2A 2-65

ACCRONYMS

ACK Positive Acknowledgement (from SAE J1939 standard)

UIN Universal Input

LED Light Emitting Diode

EA The Axiomatic Electronic Assistant (A Service Tool for Axiomatic ECUs)

ECU Electronic Control Unit (from SAE J1939 standard)

NAK Negative Acknowledgement (from SAE J1939 standard)

PDU1 A format for messages that are to be sent to a destination address, either specific

or global (from SAE J1939 standard)

PDU2 A format used to send information that has been labeled using the Group

Extension technique, and does not contain a destination address.

PGN Parameter Group Number (from SAE J1939 standard)

PropA Message that uses the Proprietary A PGN for peer-to-peer communication

PropB Message that uses a Proprietary B PGN for broadcast communication

SPN Suspect Parameter Number (from SAE J1939 standard)

Note:

An Axiomatic Electronic Assistant KIT may be ordered as P/N: AX070502 or AX070506K

User Manual UMAX021610. Version: 2A 3-65

TABLE OF CONTENTS

1. OVERVIEW OF CONTROLLER .............................................................................................................................. 5

1.1. DESCRIPTION OF SINGLE UNIVERSAL INPUT TO PROPORTIONAL VALVE OUTPUT CONTROLLER ............................. 5

1.2. DUAL LED OUTPUT FUNCTION BLOCK................................................................................................................ 6

1.3. UNIVERSAL INPUT FUNCTION BLOCK................................................................................................................... 7

1.3.1. Input Sensor Types....................................................................................................................................................... 7

1.3.2. Pullup / Pulldown Resistor Options.............................................................................................................................. 8

1.3.3. Active High / Active Low Options ................................................................................................................................. 8

1.3.4. Counter Type................................................................................................................................................................ 9

1.3.5. Minimum and Maximum Ranges ................................................................................................................................. 9

1.3.6. Input Software Filter Types ........................................................................................................................................ 10

1.4. INTERNAL FUNCTION BLOCK CONTROL SOURCES ............................................................................................. 10

1.5. DUAL LED BLOCK CONTROL SOURCES ............................................................................................................ 12

1.6. OUTPUT DRIVE FUNCTION BLOCKS ................................................................................................................... 13

1.7. PID CONTROL FUNCTION BLOCK ...................................................................................................................... 18

1.8. DIAGNOSTIC FUNCTION BLOCKS ....................................................................................................................... 20

1.9. SIMPLE CONDITIONAL LOGIC FUNCTION BLOCKS............................................................................................... 24

1.10. SET /RESET FUNCTION BLOCK......................................................................................................................... 25

1.11. LOOKUP TABLE FUNCTION BLOCK .................................................................................................................... 26

1.11.1. Auto Update on Setpoint Changes............................................................................................................................. 26

1.11.2. X-Axis, Input Data Response....................................................................................................................................... 26

1.11.3. Y-Axis, Lookup Table Output ...................................................................................................................................... 26

1.11.4. Default Configuration, Data Response....................................................................................................................... 27

1.11.5. Point To Point Response ............................................................................................................................................ 27

1.11.6. X-Axis, Time Response................................................................................................................................................ 29

1.12. PROGRAMMABLE LOGIC FUNCTION BLOCK ....................................................................................................... 30

1.12.1. Conditions Evaluation ................................................................................................................................................ 33

1.12.2. Table Selection ........................................................................................................................................................... 34

1.12.3. Logic Block Output ..................................................................................................................................................... 35

1.13. MATH FUNCTION BLOCK................................................................................................................................... 36

1.14. CAN TRANSMIT FUNCTION BLOCK.................................................................................................................... 37

1.15. DIAGNOSTIC TROUBLE CODE (DTC) REACT ...................................................................................................... 38

1.16. CAN RECEIVE FUNCTION BLOCK...................................................................................................................... 38

2. INSTALLATION INSTRUCTIONS ......................................................................................................................... 39

2.1. DIMENSIONS AND PINOUT ................................................................................................................................. 39

2.2. MOUNTING INSTRUCTIONS ................................................................................................................................ 39

3. OVERVIEW OF J1939 FEATURES ....................................................................................................................... 41

3.1. INTRODUCTION TO SUPPORTED MESSAGES....................................................................................................... 41

3.2. NAME, ADDRESS AND SOFTWARE ID ............................................................................................................... 42

4. ECU SETPOINTS ACCESSED WITH THE AXIOMATIC ELECTRONIC ASSISTANT ........................................ 44

4.1. J1939 NETWORK ............................................................................................................................................. 44

4.2. MISCELLANEOUS SETPOINTS ............................................................................................................................ 44

4.3. LED CONTROL................................................................................................................................................. 45

4.4. UNIVERSAL INPUT............................................................................................................................................. 46

4.5. PROPORTIONAL OUTPUT DRIVE ........................................................................................................................ 47

4.6. CONSTANT DATA LIST SETPOINTS .................................................................................................................... 49

4.7. LOOKUP TABLE SETPOINTS .............................................................................................................................. 49

4.8. PROGRAMMABLE LOGIC SETPOINTS ................................................................................................................. 50

4.9. MATH FUNCTION BLOCK SETPOINTS ................................................................................................................. 52

4.10. CAN RECEIVE SETPOINTS ................................................................................................................................ 53

4.11. DTC REACT..................................................................................................................................................... 54

User Manual UMAX021610. Version: 2A 4-65

4.12. DIAGNOSTICS BLOCKS ..................................................................................................................................... 54

4.13. CAN TRANSMIT SETPOINTS.............................................................................................................................. 57

5. REFLASHING OVER CAN WITH THE AXIOMATIC EA BOOTLOADER............................................................ 59

6. TECHNICAL SPECIFICATIONS............................................................................................................................ 63

6.1. POWER SUPPLY ............................................................................................................................................... 63

6.2. INPUTS............................................................................................................................................................. 63

6.3. OUTPUT ........................................................................................................................................................... 63

6.4. COMMUNICATION.............................................................................................................................................. 63

6.5. GENERAL SPECIFICATIONS ............................................................................................................................... 64

7. VERSION HISTORY............................................................................................................................................... 65

User Manual UMAX021610. Version: 2A 5-65

1. OVERVIEW OF CONTROLLER

1.1. Description of Single Universal Input to Proportional Valve Output Controller

This User Manual describes the architecture and functionality of the Universal Input to Single

Output Valve Controller with LED.

All inputs and logical function blocks on the unit are inherently independent from one another, but

can be configured to interact in a large number of ways. Figure 1 shows the hardware features of

the 1IN-1OUT-LED.

Figure 1 – Hardware Functional Block Diagram

The controller (1IN-1OUT-LED) is designed for versatile control of a universal input and a

proportional valve output. Its flexible hardware design allows for the controller to have a wide range

of input and output types. The sophisticated control algorithms/logical function blocks allow the

user to configure the controller for a wide range of applications without the need for custom

firmware.

The various function blocks supported by the 1IN-1OUT-LED are outlined in the following sections.

All setpoints are configurable using Axiomatic service tool, the Axiomatic Electronic Assistant (EA).

The universal input can be configured to read analog signals: Voltage, Current, and Resistance as

well as digital signals: Frequency/RPM, PWM, Digital, and Counter types. The inputs are described

in more detail in section 1.3.

Similarly, the output can be configured to different types: Proportional Current, Voltage, PWM,

Hotshot Digital Current and Digital (ON/OFF). Each output consists of a high side half-bridge driver

able to source up to 3Amps with hardware shutdown at 4Amps. The outputs are described in more

detail in section 1.5.

User Manual UMAX021610. Version: 2A 6-65

Additionally, the 1IN-1OUT-LED includes a dual LED which is visible from outside the housing. The

LED can be configured in various ways to visually inform the user of the controller’s operations.

The LED configuration is described in more detail in section 1.2.

1.2. Dual LED Output Function Block

The 1IN-1OUT-LED supports a dual LED (Green and Red). The dual LED output can be used to

inform the user of the status the controller is in.

The structure of the output block for the dual LED output is based on stages. The 1IN-1OUT-LED

provides the user with up to four different stages in order to provide more flexibility to the dual LED

output functionality.

Each of the four stages consists of its independent control source and digital response. However,

only one stage can be active at a time. For this reason, the 4-stage structure is based on priority in

which the 4th stage has the highest priority and the 1st stage has the lowest priority. In other words:

if all 4 stages are true, the response set for stage 4 will be used to drive the LED. In the instance

when none of the stages is active (ON), the Dual LED function block has another group which is

the default stage. When none of the stages are active, the user can configure the default stage to

command the LED in various ways as long as none of the stages are active.

The control sources that can be used to command each of the four stages are listed in section 1.5

Table 11. The control sources available for the dual LED output consist of the same control source

options as Table 9 with the addition of controller fault options to drive the LED. Hence, the dual

LED can be configured to be driven when a (selected) fault occurs.

The output types available for the dual LED for each stage are listed in Table1 below

Value

Meaning

LEDs Disabled

Green

Yellow

Red

Toggle Green/Red

Table 1 – LED Output Types

The LED Responses that are available for each stage in the 1IN-1OUT-LED are listed in Table 2

below

Value

Meaning

Normal On/Off

Blinking Logic

Table 2 – LED Response Options

User Manual UMAX021610. Version: 2A 7-65

In ‘Normal On/Off’ response type, the output command state will follow the control input command:

when the control input command is ON, the output will be turned ON and vice-versa.

In ‘Blinking Logic’ response type, the output will toggle at a period of ‘Digital Blink Rate’ for as

long as the input command is ON.

The “Control Source” setpoint together with “Control Number” setpoint determine which signal is

used to drive the output. For example setting “Control Source” to ‘Universal Input Measured’ and

“Control Number” to ‘1’, connects signal measured from Universal Input 1 to the output in

question. The input signal is scaled per input type range between 0 and 1 to form control signal.

1.3. Universal Input Function Block

The controller consists of one universal input. The universal input can be configured to measure

voltage, current, resistance, frequency, pulse width modulation (PWM) and digital signals.

1.3.1. Input Sensor Types

Table 3 lists the supported input types by the controller. The Input Sensor Type parameter

provides a dropdown list with the input types described in Table 3. Changing the Input Sensor

Type affects other setpoints within the same setpoint group such as Minimum/Maximum

Error/Range by refreshing them to new input type and thus should be changed first.

Disabled

Voltage 0 to 1V

Voltage 0 to 2.5V

Voltage 0 to 5V

Voltage 0 to 10V

Current 0 to 20mA

Current 4 to 20mA

Resistive 30Ohm to 250kOhm

Frequency 0.5 to 50Hz

Frequency 10Hz to 1kHz

Frequency 100Hz to 10kHz

PWM Low Frequency (<1kHz)

PWM High Frequency (>100Hz)

Digital (Normal)

Digital (Inverse)

Digital (Latched)

Counter (0-10kHz)

Table 3 – Universal Input Sensor Type Options

All analog input types are fed directly into a 12-bit analog-to-digital converter (ADC) in the

microcontroller. All voltage input types are high impedance while current input types use a 124Ω

resistor to measure the signal.

Frequency/RPM, Pulse Width Modulated (PWM) and Counter Input Sensor Typesare connected

to the microcontroller timers. Pulses per Revolution setpoint is only taken into consideration when

User Manual UMAX021610. Version: 2A 8-65

the Input Sensor Type selected is one of the frequency types as per Table 3. When Pulses per

Revolution setpoint is set to 0, the measurements taken will be in units of [Hz]. If Pulses per

Revolution setpoint is set to higher than 0, the measurements taken will be in units of [RPM].

Digital Input Sensor Types offers three modes: Normal, Inverse, and Latched. The measurements

taken with digital input types are 1 (ON) or 0 (OFF).

1.3.2. Pullup / Pulldown Resistor Options

With Input Sensor Types: Frequency/RPM, PWM, Digital, the user has the option of three (3)

different pull up/pull down options as listed in Table 4.

Pullup/Pulldown Off

10kΩ Pullup

10kΩ Pulldown

Table 4 – Pullup/Pulldown Resistor Options

These options can be enabled or disabled by adjust the setpoint Pullup/Pulldown Resistor in the

Axiomatic Electronic Assistant.

1.3.3. Active High / Active Low Options

In the case of Digital Inputs, the options Active High/Active Low are used to configure how a

signal high or signal low is interpreted. The following table below are the available options

provided. By default, Active High is selected.

Active High

Active Low

Table 5 – Active High / Active Low Options

Table 6 show the effect of different digital input types on input signal measurement interpretation

with recommended Pullup/Pulldown Resistor and Active High/Active Low combinations. Fault

diagnostics are not available in Digital Input types.

Input Sensor Type

Active High with

10kΩ Pulldown

Active Low with

10kΩ Pullup

Input State

Digital (Normal)

Signal High

Signal Low or Open

1 (ON)

Signal Low or Open

Signal High

0 (OFF)

Digital (Inverse)

Signal High or Open

Signal Low

1 (ON)

Signal Low

Signal High or Open

0 (OFF)

Digital (Latched)

Signal High to Low

Signal Low to High

0 (No Change)

Signal Low to High

Signal High to Low

1 (State Change)

Table 6 – Digital Input State options based on Selected Options

User Manual UMAX021610. Version: 2A 9-65

1.3.4. Counter Type

The 1IN-1OUT-LED controller supports three different variations of the Counter input type. These

variations are listed in Table 7 below:

Pulses Within Measuring Window

Time Measurement of Pulse Count

Trigger on Pulse Count Completion

Table 7 – Counter Input Types

The first option Pulses Within Measuring Window is used to count the number of pulses that occur

within a configurable time frame (Measuring Window) in terms of milliseconds. This particular

Counter type uses the other setpoint Measuring Window to select the time frame in which pulses

are to be counted.

Time Measurement of Pulse Count is another option which allows time measurement of selected

number of pulses to occur. Time measurement can be from 0ms to 65,000ms. If the time

measurement has reached it maximum but not yet counted the selected number of pulses, the

time will remain at maximum value. Therefore, it is important to select a number of pulses which

could occur within the maximum time frame. Once the selected number of pulses have been read,

the time will be restarted until the pulses have been read.

Trigger on Pulse Count Completion is Counter input type which triggers an ‘ON’ signal as soon as

the selected number of pulses have been read. Setpoints Pulses to Count, Edge to Trigger

Pulse and Trigger on First Pulse work together in this particular Counter type. When the

controller reads all pulses in Pulses to Count, the input will be triggered ‘ON’ until the next pulse is

received which will reset the trigger to ‘OFF’. The setpoint Edge to Trigger determines on which

edge of the pulse is the pulse count to be incremented. If the edge selected is Falling Edge, then

the pulse count will not be incremented until the falling edge of the pulse is received. Likewise, if

the selected edge is Rising Edge, then the pulse count will be incremented as soon as the rising

edge of the pulse is received. The other setpoint is Trigger on First Pulse. This setpoint gives the

user the option of triggering on the first pulse counted or the last pulse counted in Pulses to

Count.

For example, if Pulses to Count is set to 100, Edge to Trigger is set to Rising Edge and Trigger

on First Pulse is set to TRUE, then the rising edge of the first pulse will trigger an ‘ON’ signal. The

signal will remain ‘ON’ until the rising edge of the second pulse is received which turns the signal

to ‘OFF’. After a count of another 100 pulses is met, the signal will turn back ‘ON’ and the cycle

starts again.

1.3.5. Minimum and Maximum Ranges

The Minimum Range and Maximum Range setpoints are used to create the overall useful range

of the inputs. For example if Minimum Range is set to 0.5V and Maximum Range is set to 4.5V,

the overall useful range (0-100%) is between 0.5V to 4.5V. Anything below the Minimum Range

will saturate at Minimum Range. Similarly, anything above the Maximum Range will saturate at

Maximum Range. In order to generate an input fault if the measured input falls output of the

Minimum Range or Maximum Range, the Diagnostics function block can be used. Please refer to

Section 1.8 for more details.

User Manual UMAX021610. Version: 2A 10-65

1.3.6. Input Software Filter Types

All input types with the exception of Digital (Normal), Digital (Inverse), Digital (Latched) can be

filtered using Filter Type and Filter Constant setpoints. There are three (3) filter types available

as listed in Table 8.

No Filtering

Moving Average

Repeating Average

Table 8 – Input Filtering Types

The first filter option No Filtering, provides no filtering to the measured data. Thus the measured

data will be directly used to the any function block which uses this data.

The second option, Moving Average, applies the ‘Equation 1’ below to measured input data, where

ValueN represents the current input measured data, while ValueN-1 represents the previous filtered

data. The Filter Constant is the Filter Constant setpoint.

Equation 1 - Moving Average Filter Function:

The third option, Repeating Average, applies the ‘Equation 2’ below to measured input data, where

N is the value of Filter Constant setpoint. The filtered input, Value, is the average of all input

measurements taken in N (Filter Constant) number of reads. When the average is taken, the

filtered input will remain until the next average is ready.

Equation 2 - Repeating Average Transfer Function:

1.4. Internal Function Block Control Sources

The 1IN-1OUT-LED controller allows for internal function block sources to be selected from the list

of the logical function blocks supported by the controller. As a result, any output from one function

block can be selected as the control source for another. Keep in mind that not all options make

sense in all cases, but the complete list of control sources is shown in Table 9.

Value

Meaning

Control Source Not Used

CAN Receive Message

Universal Input Measured

Output Target

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