SmartSwarm 351 IoT Gateway

General Description

TRANSLATE MODBUS RTU TO IT PROTOCOLS IN REAL-TIME WITHOUT DISRUPTING, INTERRUPTING OR RECONFIGURING YOUR EXISTING NETWORKS

While a number of “Modbus to MQTT” gateways exist, most expect to act as the local Modbus master device, recovering information from a network of connected slaves. This presents a problem for operators of existing process control systems. A Modbus network can only have a single master device. To use these gateways, any existing master system has to be disconnected. That is impractical if it is running the user’s critical process.

The SmartSwarm 351 overcomes this limitation by transparently “eavesdropping”
on communications between the existing master device and the connected slaves. It non-disruptively derives the I/O status of connected devices and uses this information to provide a real time data feed to a connected IIoT architecture.

A bolt-on physical device that provides an easy and cost effective way to release and translate your Modbus RTU data, in real-time, to a wider enterprise IT environment.

Connects to the serial data line and ‘eavesdrops’ on the communications between the master and the attached slaves without impacting any performance of the existing automation system.

Acts a fully functional gateway, taking care of all of the hardware complexities and potential issues of an unattended communication system.

Designed to operate in some of the most demanding environments, is also mountable (DIN rail included), with DC power input for 24VDC rail.

Allows data to be enriched (translated) in real-time as it is being sent, providing data understandable and searchable by anyone.

Offers a variety of filters to control the flow of data to IT on an event-driven basis.

Automatic layering of authentication and encryption around published data to ensure security.

Technical Parameters

POWER 

  • Voltage: 10 – 60 Vdc
  • Power: (2.5W idle) 4W typical; 11W peak

ENVIRONMENTAL 

  • Operating Temperature: -40°C to 75°C (-40°F to 167°F)
  • Cold Start Temperature: -35°C (-31°F)
  • Storage Temperature: -40°C to 85°C (-40 to 185°F)
  • Operating Humidity: 0% to 95% (non-condensing)
  • Storage Humidity: 0 to 95% non condensing
  • Ingress Protection: IP42

MECHANICAL

  • Dimensions: 55 x 97 x 125mm
  • Weight: 375g
  • Mounting: Flat Surface or DIN rail

PORTS & INTERFACES (North America)

  • Serial Modbus RTU interface: RS-232 or RS-485
  • Ethernet: 2 x 10/100 Mb via RJ45
  • Digital I/O

PORTS & INTERFACES (EMEA)

  • Serial Modbus RTU interface: RS-232 or RS-485
  • Ethernet: 2 x 10/100 Mb via RJ45
  • Digital I/O
  • SIM: Mini SIM (2FF)
  • ANT & DIV antennae: SMA
  • Cellular: LTE, UMTS/HSPA+, GPRS/EDGE

MODBUS COMMANDS SUPPORTED 

  • 01 Read Coil Status
  • 02 Read Input Status
  • 03 Read Holding Registers
  • 04 Read Input Registers
  • 05 Force Single Coil* *
  • 06 Preset Single Register*
  • 15 Force Multiple Coils*
  • 16 Preset Multiple Registers*
  • 22 Mask Write 4X Register*
  • 23 Read/Write 4X  Registers* *

Note that for output command types, the unit interprets these as inputs to the IoT enrichment process.  It does not support output of data from the IoT system 

MODBUS DATA TYPES SUPPORTED

  • Boolean
  • Multi-bit Encoded Boolean (e.g. 2 bits provide 4 states for one point)
  • 16 Bit Packed Boolean
  • 16 Bit Integer (signed/ unsigned)
  • 16 Bit Counter 32 Bit Integer (signed/unsigned) (single 32 bit or 2×16 bit registers)
  • 32 Bit Counter (single 32 bit or 2x 16 bit registers)
  • 32 Bit Float (single 32 bit or 2x 16 bit registers)
  • 32 Bit Packed Boolean (single 32 bit or 2x 16 bit registers)
  • Multi-register Text
  • Endian order is configurable both within and between registers

Documentation