JUKI JGW-01 User manual

JGW-01
INSTRUCTION MANUAL

CONTENTS
Introduction......................................................................................................................... 1
1. Specications ................................................................................................................. 2
1-1. IoT Gateway JGW-01 ........................................................................................................... 2
1-2. Specications of the IoT Gateway ..................................................................................... 2
1-3. IoT Gateway interfaces ....................................................................................................... 3
1-4. Precaution about the IoT Gateway wireless communication.......................................... 3
2. Preparation of hardware ................................................................................................ 4
2-1. Required hardware items.................................................................................................... 4
3. Setup................................................................................................................................ 6
3-1. How to install the IoT Gateway to the JUKI sewing machine that supports serial
communications.................................................................................................................. 6
3-2. How to install the IoT Gateway to the sewing machine that does not support serial
communications but incorporates a main shaft rotation sensor ................................... 8
3-3. How to set the WLAN connection ...................................................................................... 9
4. LED indicators and pushbutton.................................................................................. 13
5. Troubleshooting ........................................................................................................... 15
6. Maintenance mode ....................................................................................................... 16
i

– 1 –
Introduction
Congratulations on your purchase of a JUKI product.
This Instruction Manual describes the IoT Gateway JGW-01.
Be sure to read safety precautions for the JGW-01 to fully understand them before putting your product
into use.
Be sure to read this Instruction Manual before use in order to ensure safe use of this product.

– 2 –
1. Specications
The "IoT Gateway JGW-01" (hereinafter referred to as the IoT Gateway) is a WLAN (Wireless Local
Area Network) Gateway for relaying sewing machines and sensors to the production management
system.
It is connected, with cables, to the JUKI sewing machines that support serial communications, sew-
ing machines that do not support serial communication but are equipped with a main-shaft rotation
sensor, and production switches to acquire the sewing-machine operating information.
The sewing machine communicates with the production management system to send operating
information through the IoT Gateway using a WLAN.
The IoT Gateway operates by connecting it to a 12 - 24 VDC power supply.
1-1. IoT Gateway JGW-01
1-2. Specications of the IoT Gateway
Item Specication
Model JGW-01
Name IoT Gateway
Rated voltage 12 - 24 VDC
Rated maximum current 0.5A
Current during normal operation 40 mA (supply voltage 12 V)
25 mA (supply voltage 24 V)
Wireless communication WLAN IEEE 802.11 b/g/n (2.4GHz)
Weight 140 g
Size 74 mm (L) x 93 mm (W) x 22 mm (H) (excluding the cable part)
Operating temperature and hu-
midity range
0°C - 35°C, 90% or less
Storage temperature and humid-
ity range
-15°C - 35°C, 90% or less
Table 1: IoT Gateway JGW-01 specication table

– 3 –
The IoT Gateway has four interfaces such as the power supply jack, serial communication connec-
tor, main shaft rotation sensor connector and switch connector.
・
Power supply jack: Connect the DC power supply for the IoT Gateway to this jack.
・
Serial communication connector: Connect the serial communication connector of the JUKI sew-
ing machine that supports serial communications to this connector.
・
Main shaft rotation sensor connector: Connect the main shaft rotation sensor to this connector in
the case the serial communication connector is not used.
・
Switch connector: Connect the production switch to this connector if necessary.
1-3. IoT Gateway interfaces
Power supply jack
Fig. 1: Conguration of interface connectors of the main body of the IoT Gateway
Serial communication
connector
Main shaft rotation sensor
connector
Switch connector
The IoT Gateway incorporates a WLAN module to emit and receive radio waves through an anten-
na mounted on the PCB. It implements WLAN communication by using 2.4 GHz frequency band
that conforms to the wireless communication standards IEEE 802.11b/11g/11n. Do not use the IoT
Gateway at a location adjacent to a TV or radio if it causes a receiving failure or has an adverse
e󰀨ect on any other electronic equipment.
・
Precaution about the FCC (Federal Communications Commission)
FCC compliance statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two condi-
tions:(1)This device may not cause harmful interference, and (2)this device must accept any inter-
ference received, including interference that may cause undesired operation.
1-4. Precaution about the IoT Gateway wireless communication
IoT Gateway

– 4 –
2. Preparation of hardware
Check to make sure that your have the hardware items listed below at hand.
2-1. Required hardware items
● Main body of the IoT Gateway
● Accessories of the IoT Gateway
・ IoT Gateway xing screws (2 pieces)
・ Staples (8 pieces)
・ Cable clip bands (5 pieces)
Those accessories are used for securing the main body of the IoT Gateway and cables.
● Power supply for the IoT Gateway
Prepare the power supply that meets the following specications. It is necessary to select the
equivalent power supply that meets the relevant local safety standards in your country.
Item Specication
Rated voltage 12 - 24 VDC
Rated current 1 A or more
Jack conguration Inner diameter φ2.1, outer diameter φ5.5
Polarity Center positive
Recommended power supply AC adapter GST18A24-P1J (MEAN WELL)
Table 2: Table of power supply specications required for the IoT Gateway
Fig. 2: Illustration of the IoT Gateway main body
Serial communication
connector
Power supply jack
Switch connector
Main shaft rotation sensor
connector

– 5 –
● Junction cable for the serial communication
If you want to connect the IoT Gateway to a JUKI sewing machine that supports serial com-
munications, prepare the below-stated connector conversion junction cable that matches the
sewing machine.
Part number Part name
40231235 COBRA RELAY CABLE MC
40231236 COBRA RELAY CABLE SC
40231237 COBRA RELAY CABLE SC915
40231238 COBRA RELAY CABLE DDL900B
Table 3: Table of junction cable part numbers for the serial communications
● Main shaft rotation sensor
If you want to acquire the operation information from the sewing machine that does not support
serial communications, prepare the main shaft rotation sensor as listed in the table below.
Part number Part name
40242923 ROTATION SENSOR SET
Table 4: Table of part number of the main shaft rotation sensor
● Switches
Refer to the instruction manual for the middleware for connection of production switches such
as the production volume addition switch, production volume reduction switch and maintenance
call switch.
● WLAN access points
Prepare access points that conform to the wireless communications standards IEEE
802.11b/11g/11n.
* Refer to the instruction manual for the main shaft rotation sensor for details of the sensor.

– 6 –
DANGER:
1. To prevent personal injuries caused by electric shock hazards or abrupt start of the
sewing machine, carry out the work after turning OFF the power switch and a lapse of 5
minutes or more.
2. To prevent accidents caused by unaccustomed work or electric shock, request the
electric expert or engineer of our dealers when adjusting the electrical components.
❷
❸
❹
❶❶
3. Setup
3-1. How to install the IoT Gateway to the JUKI sewing machine that supports
serial communications
<Example of installation of the IoT Gateway to the JUKI DDL-9000C sewing machine>
1) Secure main body ❶ of the IoT Gateway with accessory xing screws ❷(two pieces).
2) Secure the cable of main body ❶of the IoT Gateway with accessory staples ❸(three pieces).
● Installing the main body of the IoT Gateway
❶Main body of the IoT Gateway
❷ IoT Gateway xing screws
❸Staples
❹Electrical box of the sewing
machine
Fig. 3: Figure showing how to install the IoT Gateway
to the sewing machine
In order to prevent cable breakage or application of stress to the main body of the IoT
Gateway, secure the cable of the IoT Gateway with the accessory staples and cable clip
bands.

– 7 –
● Connection inside the electrical box of the sewing machine
1) Loosen four setscrews ❷of control box
cover ❶. Remove control box cover ❶.
2) Connect Cobra junction cable SC ❹(JUKI
part number: 40231236) to serial communi-
cation cable ❸of the IoT Gateway.
3) Connect Cobra junction cable SC ❹to the
CN52 located inside the electrical box.
4) Pass serial communication cable ❸through
cord outlet plate ❺as with other cables and
secure with cable clip band ❻.
5) Install control box cover ❶with four set-
screws ❷.
❶
CN52
Fig. 4: Figure showing how to remove the
electrical box cover
❷
Fig. 5: Figure showing connection of the IoT
Gateway to the sewing-machine electrical box
❺
❻
❸❹
For the purpose of preventing the
cord breakage, take care not to allow
the cords to be caught between the
control box and control box cover ❶
when attaching the latter.

– 8 –
3-2. How to install the IoT Gateway to the sewing machine that does not support
serial communications but incorporates a main shaft rotation sensor
● Installing the main body of the IoT Gateway
Refer to 3-1.
● Installing the main shaft rotation sensor
Refer to the instruction manual for main shaft rotation sensor ❷(JUKI part number: 40242923).
● How to connect the main shaft rotation sensor
1) Connect main shaft rotation sensor ❷(JUKI
part number: 40242923) to main shaft ro-
tation sensor connector ❶of the IoT Gate-
way.
2) Attach accessory connector cover ❸to
main shaft rotation sensor connector ❶of
the IoT Gateway cable.
Fig. 6: Figure showing connection of the main
shaft rotation sensor connector
❸
❶
❶
❸
❷
❷
❹
Put connector cover ❸ on the con-
nector connection as shown in
the gure. In this state, secure the
connector connection with cable clip
band ❹ so as to prevent it from being
exposed.

– 9 –
3-3. How to set the WLAN connection
● Connection to access points
Prepare WLAN access points to be connected to the IoT Gateway.
Access points that can be connected to the IoT Gateway are as described below:
・ Device compatible with IEEE 802.11b/11g/11n or upward compatible device
・ Frequency 2.4 GHz
● Setting the access point
In this Instruction Manual, it is presumed that the SSID and password on the access point side
have already been set.
In addition, it is also presumed that access point has already been connected to the network.
If you have any question, please contact the person in charge of networking.
● Setting the host system
Start up the server on which the MQTT broker runs on the network.
Refer to the instruction manual for the middleware.
There is an upper limit to the number of devices that can be connected to one access point
(normally about 10 to 20 units). Any more device cannot be connected to one access point
if this upper limit is exceeded. If the number of devices you want to connect to the access
point exceeds the upper limit, you must prepare additional access point.
If you have any question, please contact the person in charge of networking.
Do not set "JUKI_IoT" as the SSID name of the access point.

– 10 –
● Setting the IoT Gateway
It is necessary to store the SSID and password of the access point, MQTT broker URL, etc. in
the IoT Gateway. Two di󰀨erent methods are available to store the aforementioned pieces of
information in the IoT Gateway.
<Method 1> Method to set the IoT Gateway through the web browser of the PC or smart-
phone by shifting the IoT Gateway into the "maintenance mode"
Setting procedure
1. Prepare a device such as a PC and smartphone that can be connected to the network
through the WLAN.
2. Shift the IoT Gateway into the "maintenance mode". Refer to "6. Maintenance mode" for
how to shift the mode. Once the IoT Gateway is put in the "maintenance mode", it will serve
as a local access point.
3. Connect the device you have prepared to the access point of the IoT Gateway. Set the SSID
and password as listed in the table given below.
4. Connect the device to the IoT Gateway through the web browser of the device.
(IP address = 192.168.4.1)
5. Set the SSID and password of the access point in the IoT Gateway through the web brows-
er.
SSID JUKI_IoT
Password 12345678
Table 5: SSID and password of the IoT Gateway under the "maintenance mode"

– 11 –
* It is possible to set all of the IoT Gateway units with the <Method 1>. However, it will take
time if you use a large number of IoT Gateway units. In such a case, <Method 2> is recom-
mended for the sake of convenience.
<Method 2> Method to copy the settings of the host IoT Gateway to other IoT Gateway units
by using the rst unit of the IoT Gateway as a host
Setting procedure
1. Set the rst unit of the IoT Gateway using the <Method 1>. Check to make sure that this IoT
Gateway is connected to the access point.
Check to be sure that the LED indicators (POWER and SYSTEM) of the rst unit of the IoT
Gateway do not blink but light up.
2. Shift the mode of the rst unit of the IoT Gateway into the "maintenance mode". Turn ON the
power to the IoT Gateway. At that time, set the "overwrite settings when propagating" check
box on the Setting screen to "ON" through the web browser.
Refer to "6. Maintenance mode" for the setting procedure.
Next, press the "submit" button.
First unit of the
IoT Gateway Access point MQTT broker
On the next screen, do not press the "restart now" button, but press the "back" button to
return to the previous screen. Keeping the screen in that state, proceed to "3".

– 12 –
3. Place the second unit of the IoT Gateway near the rst unit and turn ON the power of the former.
Then, the conguration information of the rst unit of the IoT Gateway is automatically copied to
the second unit. When the second unit creates a connection with the access point and successfully
sends the setting data to the MQTT broker, the LED indicators change their statuses from blinking to
lighting to indicate that the setting of the second unit of the IoT Gateway has been completed.
4. Turn OFF the second unit of the IoT Gateway.
5. Carry out setting of the third and subsequent units of the IoT Gateway in the same way.
The number of the IoT Gateway units that can be simultaneously connected to the
IoT Gateway access point is four at the maximum. Consequently, for the second and
subsequent units of the IoT Gateway, turn OFF the power to the unit immediately after
the completion of setting one after another.
First unit of the
IoT Gateway Access point MQTT broker
① Turn ON the second
IoT Gateway.
② Copy the
conguration
information ③ Communication
starts after the
IoT Gateway is
connected to the
access point.
Operations ② and ③ are
automatically carried out only
by turning ON ① the second
unit of the IoT Gateway.

– 13 –
4. LED indicators and pushbutton
The IoT Gateway is provided with ve LED indicators. They have individual display functions
and collective display function. In addition, the IoT Gateway is provided with one pushbutton
that is used for transiting the IoT Gateway status.
Fig. 7: Appearance of the main body of the IoT Gateway
・
Individual display function
The LED indicators respectively have four di󰀨erent states, i.e., light ON/light OFF/slow
blinking/fast blinking.
The following table shows meanings of the respective LED indicators.
LED indicator name Icon Function
POWER Indicates ON/OFF of the power to the main body of the IoT
Gateway.
MACHINE Indicates the status of serial communications between the IoT
Gateway and the sewing machine.
SYSTEM Indicates the state of WLAN communications between the IoT
Gateway and the host system.
SWITCH Indicates ON/OFF of the production volume increase/decrease
switch.
ROT SENSOR Indicates ON/OFF of the main shaft rotation sensor.
Table 6: Table of functions of the individual LED indicators
Pushbutton LED indicators

– 14 –
・
Collective display function and pushbutton
State of the IoT Gateway is indicated with all LED indicators. The pushbutton is used for state
transition.
The following table shows the collective display of the LED indicators and how to use the
pushbutton.
Display pattern Status of display
Simultaneous fast
blinking
All of the ve LED indicators simultaneously blink fast.
Simultaneous slow
blinking
All of the ve LED indicators simultaneously blink slowly.
Fast ow display Five LED indicators light up and go out one after another at a fast speed
as if the light streams.
Left → Right: While the IoT Gateway is being reset (at the time of shutting
down)
Right → Left: While the IoT Gateway is re-starting up (at the time of
starting up)
Display of error codes
by blinking the LED
indicators
In the case the POWER LED indicator blinks slowly and the remaining four
LED indicators blink fast, the LED indicators indicate an error code. There
are 15 types of error codes from 1 to 15.
Table 7: Display patterns and status of the LED indicators
Time Pushbutton
operation
Normal mode Maintenance mode
LED display Operation LED display Operation
0 Start pressing Immediately
preceding
display
ーSimultaneous
slow blinking
※※※※※
ー
：Release within
two seconds
Local terminal
information is
notied to the
MQTT broker
After re-starting,
the IoT Gateway
starts up under
the normal
mode
2
seconds
：
Release within
ve seconds
Simultaneous
fast blinking
◎◎◎◎◎
After re-starting,
the IoT Gateway
starts up under
the normal
mode
Simultaneous
fast blinking
◎◎◎◎◎
After re-starting,
the IoT Gateway
starts up under
the maintenance
mode.
5
seconds
：
Release after
ve seconds
or more have
passed
Simultaneous
slow blinking
※※※※※
After re-starting,
the IoT Gateway
starts up under
the maintenance
mode.
Simultaneous
slow blinking
※※※※※
After re-starting,
the IoT Gateway
starts up under
the normal
mode
Table 8: Functions of the pushbuttons and LED displays

– 15 –
5. Troubleshooting
● List of error codes and corrective measures
The IoT Gateway uses ve LED indicators for displaying errors.
Error display patterns and error codes are listed in the table given below.
Error code Lighting pattern Description of error Corrective measure
1※〇〇〇● SSID of the WLAN
destination access point
has not been set.
Shift the mode of the IoT Gateway
into the maintenance mode. Check
the setting of the access point on the
setting screen.
2※〇〇●〇 URL of the MQTT broker
has not been set.
Shift the mode of the IoT Gateway
into the maintenance mode. Check
the URL of the MQTT broker on the
setting screen.
3※〇〇●● The setting information
cannot be acquired since
there are two or more IoT
Gateways that are under
the maintenance mode.
If there are two or more IoT Gateways
that are under the maintenance
mode, turn the power OFF to allow
only one IoT Gateway to be under the
maintenance mode.
In addition, if the name of the SSID
of the access point is "JUKI_IoT",
change the SSID name to any other
one.
4 to 15 (Not used)
Table 9: List of error codes and corrective measures
※= Constantly blinking slowly (POWER LED indicator), 〇= Light OFF, ●= Fast blinking

– 16 –
6. Maintenance mode
● How to shift the IoT Gateway into the maintenance mode
If you want to shift the IoT Gateway from the normal mode to the maintenance mode, keep the
pushbutton held pressed for ve seconds or more until the LED indicators blink slowly, then
release the pushbutton. The IoT Gateway will start up under the "maintenance mode" after re-
starting. (All LED indicators blink slowly.)
● Screen operation
It is possible to check the internal information and change the settings of the IoT Gateway
by connecting your PC or smartphone to the IoT Gateway that is placed in the "maintenance
mode" through the web browser.
Firstly, set the SSID and password, etc. as shown in the table given below. Then, connect your
PC or smartphone to the IoT Gateway by WLAN. Then, connect it to the IP address through the
web browser.
SSID JUKI_IoT
Password 12345678
IP address 192.168.4.1
Table 10: SSID, password and IP address of the IoT Gateway under the "maintenance mode"
Fig. 8: Home page screen of the IoT Gateway website on the web browser
When you connect your PC or smartphone to the IoT Gateway through the web browser, the
"Home" page of the JUKI IoT Gateway website as shown in the following gure appears on the
screen to allow you to check internal information of the IoT Gateway. (The following screen is
subject to change)

– 17 –
When you click the "Setting" in the left menu, the setting screen appears as shown below.
Fig. 9: Setting screen of the IoT Gateway website on the web browser
On this screen, enter the SSID, password, URL of the MQTT broker, etc.

– 18 –
Setting menu name Description of setting
Sensor type Select one from the following three methods. Default is "BUTTON".
Pull-down menu name Description
BUTTON Mechanical switch
IR Sensor(HAND) Infrared sensor (for detecting hands)
IR Sensor(CLOTH) Infrared sensor (for detecting fabrics)
T1 For setting the minimum detection time of the sensor. (Unit: msec)
T2 For setting the minimum counting-up interval time of the production volume.
(Unit: msec)
● How to set the production volume switch
Use the "Parameters for Prod(+) switch" to check and set the parameters of the production vol-
ume switch.
Settings of the production volume switch are as shown in the table given below.
● Completing the setting
At the end of the procedure, press the "submit" button to complete the setting.
Refer to the section on the "Production volume count" in the "Instruction Manual for the IoT
Gateway middleware" for details of installation, etc.