Industrial Protocols

The set of Industrial Protocol modules for Waspmote allows the user to interface with different industrial buses:

rs485
rs232
canbus
modbus
420

Waspmote allows to perform three main applications:

1º- Connect any sensor to an existing industrial bus

Waspmote can be configured to work as a node in the network, inserting sensor data into the industrial bus already present. Waspmote can obtain information from more than 70 sensors currently integrated in the platform by using specific sensor boards (e.g: CO, CO2, temperature, humidity, acceleration, pH, IR, luminosity, vibration, etc). This way, the sensor information can be read from any industrial device connected to the bus.

diagram_protocols_1

2º- Add wireless connectivity to wired buses

Waspmote can be configured to read the information coming from the bus and send it wirelessly using any of the wireless modules available in the platform to a base station or to another node connected to another bus. The available wireless technologies are: WiFi, 3G, GPRS, 802.15.4, ZigBee, Bluetooth, Bluetooth Low Energy, RF-868MHz, RF-900MHz.

diagram_protocols_2

3º- Connect to the Cloud industrial devices

Waspmote can be configured to read the information coming from the bus and send it wirelessly directly to the Cloud using WiFi, 3G and GPRS radio interfaces.

diagram_protocols_3

» RS-485

rs485
  • Standard: EIA RS-485
  • Physical Media: Twisted pair
  • Connector: DB9
  • Network Topology: Point-to-point, Multi-dropped, Multi-point
  • Maximum Devices: 32 drivers or receivers
  • Mode of Operation: Differential signaling
  • Maximum Speed: 460800 bps
  • Voltage Levels: -7 V to +12 V
  • Mark(1): Positive Voltages (B-A > +200 mV)
  • Space(0): Negative voltages (B-A < -200 mV)
  • Available Signals: Tx+/Rx+, Tx-/Rx-(Half Duplex)Tx+,Tx-,Rx+,Rx-(Full Duplex)
    Applications:
  • Industrial Equipment
  • Machine to Machine (M2M) communications
  • Industrial Control Systems, including the most common versions of Modbus and Profibus
  • Programmable logic controllers
  • RS485 is also used in building automation
  • Interconnect security control panels and devices

» RS-232

rs232
  • Standard: TIA-232-F
  • Cabling: Single ended
  • Connector: DB9
  • Network Topology: Point-to-point
  • Maximum Speed: 115200 bps
  • Signaling: unbalanced
  • Voltage Levels: -25...+25
  • Mark(1): -5...-15
  • Space(0): +5...+15
  • Signals: Full Duplex (Rx, TX)
    Applications:
  • Bar code scanners and other point of sale devices
  • LED and LCD text displays
  • Satellite phones, low­ speed satellite modems and other satellite based transceiver devices
  • Updating Firmware on various consumer devices
  • Uninterruptible power supply
  • Stenography or Stenotype machines
  • Software debuggers that run on a 2nd computer
  • Industrial field buses

» CAN Bus

canbus
  • Standard: ISO 11898
  • Cabling: Twisted Pair
  • Connector: DB9
  • Network Topology: Multimaster
  • Speed: 125 to 1000 Kbps
  • Signaling: Differential
  • Voltage Levels: 0-5V
  • Signals: Half Duplex
    Applications:
  • Automotive applications
  • Home automation
  • Industrial Networking
  • Factory automation
  • Marine electronics
  • Medical equipment
  • Military uses

» Modbus

modbus

The Modbus is a software library that can be operated physically on the RS-485 and RS-232 modules.

  • Data area: Up to 255 bytes per job
  • Interface: Layer 7 of the ISO-OSI reference model
  • Connector: DB9 (RS-485 / RS-232 modules)
  • Number of possible connections: up to 32 in multi point systems
  • Frame format: RTU
    Applications:
  • Multiple master-slave applications
  • Sensors and Instruments
  • Industrial Networking
  • Building and infrastructure
  • Transportation and energy applications

» 4-20 mA (Current Loop)

420
  • Type:  Analog
  • Media: Twisted Pair
  • No. of devices: 1
  • Distance: 900m
  • Supply: 5-24V
    Applications:
  • Sensors and Instruments
  • Remote Transducers
  • Monitoring Processes
  • Data transmission in industrial scenarios