STRIDE MQTT Manuale utente
Chapter
Chapter
Chapter
1
1
1
In This Chapter...
Hardware Overview...................................................................................................................................... 2-2
Specifications............................................................................................................................................. 2-3
Dimensional Drawings .............................................................................................................................. 2-4
Installation .................................................................................................................................................... 2-5
Mounting ................................................................................................................................................... 2-5
Wiring ........................................................................................................................................................ 2-6
Operation...................................................................................................................................................... 2-7
Front Panel Indicators ............................................................................................................................... 2-8
Recovery Mode.......................................................................................................................................... 2-8
Hardware
Chapter 1: Hardware
Stride MQTT Gateway User Manual, 1st Edition
1-2
Introduction
The Purpose of This User’s Manual
Thank you for purchasing our Stride® MQTT Gateway for your Industrial Internet of Things (IIoT)
data logging. This manual describes our MQTT Gateway, its specifications and included components, and
provides you with important information for installation, connectivity and setup.
Technical Support
We strive to make our manuals the best in the industry. We rely on your feedback to let us know if we are
reaching our goal. If you cannot find the solution to your particular application, or, if for any reason you need
technical assistance, please call us at:
770–844–4200
Our technical support group will work with you to answer your questions. They are available Monday
through Friday from 9:00 a.m. to 6:00 p.m. Eastern Time. We also encourage you to visit our web site where
you can find technical and non-technical information about our products and our company.
https://www.AutomationDirect.com
If you have a comment, question or suggestion about any of our products, services, or manuals, please let us know.
Conventions Used
When you see the “notepad” icon in the left-hand margin, the paragraph to its immediate right will be a special note.
The word NOTE: in boldface will mark the beginning of the text.
When you see the “exclamation mark” icon in the left-hand margin, the paragraph to its immediate right will be a
warning or a caution. This information could prevent injury, loss of property, or even death (in extreme cases). The
words WARNING or CAUTION: in boldface will mark the beginning of the text.
Chapter 1: Hardware
1-3
Stride MQTT Gateway User Manual, 1st Edition
Hardware Overview
The Stride MQTT Gateway is an industrial device specifically designed to implement an Industrial Internet
of Things (IIoT) data collection system. It allows bidirectional communication between Modbus field
equipment and an MQTT broker. It provides a Modbus RTU master interface on RS-485 and Modbus
TCP over Ethernet. Variables can be read from Modbus slave devices on change or at fixed time intervals and
are sent to the MQTT broker with optional SSL/TLS client certificate authentication.
The Wi-Fi model (Part No. SGW-MQ1611-WF) uses 802.11 a/b/g/n/ac in 2400MHz or 5500MHz bands.
Setup of the device is through a built-in web interface. The MQTT message structure can be configured
to better adapt to different MQTT brokers (e.g., Amazon AWS, IBM Watson IoT, Mosquitto, etc.). It is
possible to remotely update the firmware through the web interface.
The gateway has a low-profile format, suitable for DIN rail mounting inside industrial electrical cabinets. The
full galvanic isolation ensures a good protection against interference present in industrial environments. A
dedicated hardware Watchdog manages the automatic reset of the device. Signaling LEDs allow an immediate
diagnosis of device operation.
SAFETY NOTICE: The Stride MQTT Gateway allows the user to connect to remote industrial controls equipment.
The remote user may operate and monitor the local control system and affect the function and control of the
application just as the local operator controls it. Proper Control, Security and Safety Procedures should be
considered and implemented when writing data to a remote device or system.
Chapter 1: Hardware
Stride MQTT Gateway User Manual, 1st Edition
1-4
Specifications
Stride MQTT Gateway Models
Part Number Ethernet RS-485 WiFi
SGW-MQ1611 ü ü
SGW-MQ1611-WF üüü
RS-485 Specifications
Connector Removable screw terminals, 5.08 mm pitch
Baud rate Up to 115.2 kbps
Parity Even, odd or none
Stop bit 1 or 2
Number of Serial Devices 32 max.
Switching Time TX/RX (RS-485) 150μs
Termination Resistance 120Ω
Ethernet Specifications
Connector RJ-45
Ethernet Port Speed 10/100Mbps auto-detected
Protocol MQTT, Modbus TCP
Simultaneous Ethernet Connections 8
WiFi Specifications (Model SGW-MQ1611-WF Only)
WiFi Standards 802.11 a/b/g/n/ac
Frequency Bands 2400MHz / 5500MHz
Antenna Internal
Network Ports
Web User Interface 80
Modbus 502 (default, software configurable)
MQTT Software configurable, determined by MQTT Broker
Electrical Specifications
Power Supply Connector Removable screw terminals, 5.08 mm pitch
Input Voltage Range 10–30VDC
Current Consumption max 300mA @ 24VDC
Isolation
Ethernet / RS-485
Ethernet / Power Supply
Power Supply / RS-485
1500VAC, 50Hz, 1 min.
1000VAC, 50Hz, 1 min.
1500VAC, 50Hz, 1 min.
Reverse Polarity Protection Yes
Mechanical Specifications
Material Self-extinguishing plastic
Mounting DIN rail (EN50022 and EN50035)
Weight Approximately 200g
Chapter 1: Hardware
1-5
Stride MQTT Gateway User Manual, 1st Edition
Environmental Specifications
Operating Temperature 0°C to +60°C [32°F to +140°F]
Storage Temperature −20°C to +70°C [−4°F to +158°F]
Humidity 0–90%, noncondensing
Maximum Altitude 2000m
IP Rating IP20
Installation Indoor
Category of Installation II
Pollution Degree 2
EMC
Immunity
Emission
EN61000-6-2
EN61000-6-4
Agency Approvals CE, FCC, RoHS
Dimensional Drawings
91.0
3.58
71.5
2.81
RESET
BUTTON
44.9
1.77
46.1
1.81
62.5
2.46
62.5
2.46
5-WIRE
CONNECTOR
Units: mm [in]
ETHERNET
PORT
RoHS Compliant
RoHS
Chapter 1: Hardware
Stride MQTT Gateway User Manual, 1st Edition
1-6
Installation
Mounting
The Stride MQTT Gateway may be used indoors only.
It is designed to be mounted in a vertical position on DIN rail and cooled using natural convection. For
proper cooling, you must provide clearance of at least 5mm [0.2 inches] between MQTT Gateway modules
and at least 10mm [0.4 inches] between MQTT Gateway modules and power supplies or other devices.
Make sure that sufficient air flow is provided for the gateway. Avoid placing raceways or other objects where
airflow could be obstructed. Avoid mounting the gateway above equipment that generates heat; ideally locate
the gateway in the lower part of the panel.
Install the gateway in a place without vibrations.
To mount the gateway:
1. Hook the top of the mounting bracket onto the DIN rail.
2. Press the bottom of the gateway inward until it clicks onto the DIN rail.
To remove the gateway:
A. Pull downward on the mounting clip release.
B. Swing the bottom of the gateway outward.
C. Lift the gateway off the DIN rail.
1
2
B
C
A
NOTE: Installation of the SGW-MQ1611-WF model in a metal cabinet is not recommended, as the cabinet may
block the Wi-Fi signal.
Chapter 1: Hardware
1-7
Stride MQTT Gateway User Manual, 1st Edition
Wiring
Wiring Guidelines
WARNING: To minimize the risk of potential safety problems, you should follow all applicable local and national
codes that regulate the installation and operation of your equipment. These codes vary from area to area
and it is your responsibility to determine which codes should be followed, and to verify that the equipment,
installation, and operation are in compliance with the latest revision of these codes.
Equipment damage or serious injury to personnel can result from the failure to follow all applicable codes
and standards. We do not guarantee the products described in this publication are suitable for your particular
application, nor do we assume any responsibility for your product design, installation, or operation.
If you have any questions concerning the installation or operation of this equipment, or if you need additional
information, please call technical support at 1-800-633-0405 or 770-844-4200.
This publication is based on information that was available at the time it was written. At Automationdirect.com®
we constantly strive to improve our products and services, so we reserve the right to make changes to the
products and/or publications at any time without notice and without obligation. This publication may also
discuss features that may not be available in certain revisions of the product.
Proper grounding and wiring of all electrical equipment is important to help ensure the optimum operation
of the Stride MQTT Gateway and to provide additional electrical noise protection for your application.
WARNING: Do not terminate communication leads while the plug-in connector is connected to a powered device.
Wiring Connections
The Stride MQTT Gateway comes with a female 5-pin
plug-in connector for its power and RS-485 connection.
The gateway can be powered from the same 12 to
24 VDC source that is used to power your other
devices. Recommended DC power supplies are
AutomationDirect.com part number PSL-12-010 or
PSL-24-010.
The device uses a 2-wire RS-485 interface. It has an
internal terminating resistor, so this device must be at
the end of the communications daisy-chain.
Avoid routing signal cables near power cables (motors,
induction ovens, inverters, etc.), and use shielded cable
to connect signals. We recommend AutomationDirect
Part #L19954-1 or equivalent data cable to connect
RS-485 serial devices.
POWER SUPPLY SHIELD
RS-485
RST
Ethernet
RJ45
54321
Chapter 1: Hardware
Stride MQTT Gateway User Manual, 1st Edition
1-8
Wiring Connections
Pin Description Notes
1V- Power Supply 10–30VDC, 300mA @ 24VDC
2V+
3SHIELD RS-485 Shield
4D+ RS-485 Data Connection to one or more
Modbus RTU servers
5D-
RJ45 Ethernet 10/100Base-T
Connection to MQTT broker and
one or more Modbus TCP or
Modbus RTU over TCP servers
USB (x2) Future Use
Terminal Connector Wiring Specifications
Wire Size 0.8–2.1 mm2
14–18 AWG
Torque 0.5 N·m
Stripping Length 5mm maximum
LEDs on the top surface indicate:
* red, active internal power; green, internal memory activity
SHIELD
D (+)
D (−)
MASTER
SHIELD
D (+)
D (−)
MASTER
5
4
SHIELD
D (+)
D (−)
SLAVE
SHIELD
D (+)
D (−)
SLAVE
SHIELD
D (+)
D (−)
SLAVE
2
1
+
DC
POWER SUPPLY
RS-485 Point-to-Point
RS-485 Multipoint
CONNECTIONS
3
5
4
3
Chapter 1: Hardware
1-9
Stride MQTT Gateway User Manual, 1st Edition
Operation
Configuration and operation of the STRIDE MQTT Gateway is primarily conducted using the device’s web
interface, as discussed in Chapter 2. The hardware indicators and controls are described here.
POWER
ERROR
RS-485 TRANSMIT
RS-485 RECEIVE
RECOVERY MODE
BUTTON
POWER TERMINALS
RS-485 TERMINALS
RJ45 PORT
Front Panel Indicators
The Stride MQTT Gateway has four status LEDs, as shown below.
Front Panel LEDs
LED Color State Description
PWR GREEN ON Device powered
OFF Device unpowered
ERR YELLOW
OFF No error
BLINK
SLOW-FAST-FAST-FAST Boot (about 60 sec., few minutes for the first boot)
BLINK SLOW Communications error (Modbus, MQTT, etc.)
BLINK FAST Watchdog restart
TX RED BLINK Data transmitted over RS-485
OFF No data over RS-485
RX RED BLINK Data received over RS-485
OFF No data over RS-485
NOTE: LEDs on the top surface indicate: RED = active internal power; GREEN = internal memory activity.
Chapter 1: Hardware
Stride MQTT Gateway User Manual, 1st Edition
1-10
Recovery Mode
The device can be booted into a Recovery Mode to reset portions of the configuration to default or to
perform system maintenance and firmware updates.
To enter Recovery Mode, press and hold the recessed reset button on the front of the gateway while applying
power. Continue to hold the reset button until the ERR light stops blinking (about 5 seconds after applying
power). The gateway will start in Recovery Mode, using the default Ethernet configuration:
• IP address = 192.168.1.100
Details of the features available in recovery mode are discussed in Chapter 2.
Indice
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