Au Group Electronics GW5-PS-CAN-001 Gateway Device User Manual
- June 9, 2024
- Au Group Electronics
Table of Contents
Au Gateway 5 User Manual Rev. A
Au Gateway 5 (GW5) User Manual
Rev. A November 2022
GW5-PS-CAN-001 Gateway Device
Au Gateway 5 (GW5) is a gateway device. It converts pressure signals from up
to two pressure sensors to digital format of “Brake Primary Pressure ” and
“Brake Secondary
Pressure” information onto J1939 and J1708/J1587 network. GW5 supports Bendix
pressure sensor part # 5005758, 5008677
Support Parameters
| J1939 Parameters (SA: 23 and 33)| J1708 Parameters (MID: 140 and
249)
---|---|---
Brake Primary Pressure| 65274 (0x00FEFA) byte 2 SPN 117| PID117
Brake Secondary Pressure| 65274 (0x00FEFA) byte 3 SPN 118| PID118
GW5 function Block
Features
- Nominal Power Supply: 12V DC nominal input, +14.2V DC recommended
- Operating Electric current: 65mA typical, 250mA max
- Operating Temperature: -4˚F to 158˚F (-20˚C to 70˚C)
- Size: 4-1/8″ L X 1-3/4″W X 7/8”H
- Enclosure Color: Black
- Dual CAN Baud Rate: supports Two field configurable CAN baud rate: 250K and 500K
- Audile warning and LED indicators
- RS232 side DB9 female connector: for firmware boot-loading purpose
- BUS side DB9 male connector: for power, J1939 network, J1708 network, pressure sensor signal inputs and output +5V to pressure sensors.
| DB9 Pin # | Color Code | Signal Definition |
|---|---|---|
| I | Black | GND input for GW5 and Pressure Sensor |
| 1 | Blue | Brake primary pressure sensor input |
| 3 | Grey | +5V output for pressure sensors |
| 4 | White | Brake secondary pressure sensor input |
| 5 | Red | +14.2V input |
| 6 | Green | CAN-L |
| 7 | Yellow | CAN-H |
| S | Brown | J1708-B- |
| 9 | Purple | J1708-A+ |
Hardware Connection
Au GW5 is a handheld gateway device. It can run independently without a computer.
On the RS232 side, Au Gateway 5 (GW5) can be connected to a computer through a
USB to RS232 convert cable (part #: CBL-USB-01). Connection to PC is only used
for firmware boot-loading purpose, computer is not necessary during general
use.
On the Bus side, a 9-wire pigtail cable (part #: CBL-GW5-001) can be used to
connects GW5 to power supply, J1939 network, J1708 network, and up to two
pressure sensors.
For testing purpose, an optional Digital Gauge Driver can be used to connect
to the J1708 network and drive Primary pressure gauge and Secondary pressure
gauge.
Note: All devices must use the same reference ground.
GW5 Settings and Status
Au GW5 equipped with 3 push buttons (Menu, Down, Up) and 9 LEDs (one of the
LED is not in-use for GW5).
When GW5 is powered up with +14.2V DC, Power LED will be constant on, Run LED
will blink at 1 second interval.
One of the CAN baud rate LED (250K/500K) will lit depends on the device CAN
baud rate setting.
To switch CAN baud rate, press and hold both Menu and Down buttons at the same
time until LED status change.
In Figure 6, the first LED (Yellow) lit up indicates GW5 device is setting at
500K CAN baud rate
In Figure 7 the second LED (Green) lit up indicates GW5 device is setting at
250K CAN baud rate
Here is the summary of LED indicators on device status, and how to use push
buttons to change device settings.
| LED | Device Status |
|---|---|
| Pm\ el | Constant on. Device is powered up |
| Run | Blink every is. Device runs normally |
| 500K | When the LED is on, Devices running at 500K CAN baud rate 1 |
| 250K | When the LED is on, Devices running at 250K CAN baud rate’ |
| (Primary) Low | When the LED is on, Primary brake Pressure is below 60 PSI |
| (Primary) Error | When the LED is on. Primary brake Pressure Sensor not |
connected or malfunction
(Secondary) Low| When the LED is on, Secondary brake Pressure is below 60 PSI
(Secondary) Error| When the LED is on, Secondary brake Pressure Sensor not
connected or malfunction
Note 1: the 500K and 250K LED are mutual exclusive, only one LED will be on at a time. They cannot be both on, nor both off.
| Push Button Operation | Device Settings |
|---|---|
| Press Down button | Decrease backlight |
| Press Up button | Increase backlight |
| Press and hold both Menu + Down button | Switch between 250K / 500K CAN baud |
rate
Press and hold both Up + Down button| Silent the buzzer, the buzzer can only
be turn off when warning is on, it will be automatically turned on at each
power reset.
Buzzer Warning
GW5 has both audible and LED warning indication.
If GW5 detects one of the following situation, a beeping will sound out at 1
second interval:
- GW5 is not connected to primary pressure sensor or primary pressure sensor malfunction
- Primary brake pressure is lower than 60 PSI
- GW5 is not connected to Secondary pressure sensor or Secondary pressure sensor malfunction
- Secondary brake pressure is lower than 60 PSI
To silent the buzzer, press and hold both Up and Down button. The buzzer can only be turn off when warning is on, it will be automatically turned on at each power reset.
Website: www.AuElectronics.com
Email: support@auelectronics.com