Communication


The communication network is the backbone for any Control system and is required for various control devices to communicate with each other and to a central information centre capable of taking control actions, which could be either LAN or WAN.


Common Wired Communication:

  • RS232 (One-to-One): Its a single-ended full-duplex interface is used for short distances, maximum cable length - 50 feet
  • RS422 (1Tx-to-10Rx): Reducing common mode noise to enable data transmission over long distances in noisy industrial and factory automation environments, maximum cable length - 1650 feet.
  • RS485 (32Tx-to-32Rx): Similar to RS422 but have multiple commanding devices (Tx) and multiple receiving devices (Rx), maximum cable length - 650 feet.

Industrial Specific Protocol:

  • Serial: PROFIBUS, PROFINET, Modbus™ and CAN
  • Ethernet: EtherCAT, PROFINET, Modbus™ TCP/IP, Ethernet/IP and PowerLink

Data buses like Modbus and Profibus are no longer the de facto standard for industrial communications; both have been overtaken by Ethernet. Ethernet accommodates a wide range of applications, has become universally supported by communications equipment manufacturers and counts ease of configuration and low cost among its many advantages.


However, all the wired communications modes share one significant drawback with other: Cabling.


Wireless communication technologies address the cabling drawbacks of hardwired connections and offer many new possibilities in the industry for particularly flexible and efficient automation solutions. There are many different methods of wireless communication, based on the distance between the transmitting and receiving points. For example, Bluetooth and Wi-Fi for short distances, GSM or CDMA for longer distances.


The key requirement for the use of wireless technologies in industrial applications is that the technology must be as rugged and reliable as a cable connection, even under harsh conditions. The wireless connection is subject to interference, such as electromagnetic interference fields, which can adversely affect transmission.


  • ZigBee - used for simple applications with a low data rate, low power and low-cost requirements. It offers a diversity of channel selections over three bands: one in 868MHz, ten channels in 902-928MHz and sixteen available in the 2.4GHz ISM.

  • Bluetooth - operates in the 2.4GHz (ISM) band. Piconet is the basic unit of networking in Bluetooth. It is an ad-hoc network with one master and up to seven active slave nodes. Ultra-wideband technology is designed for applications which require a power-efficient, high bandwidth solution. UWB offers enormous bandwidth which enables it to tackle multipath and jamming issues.

  • WirelessHART and ISA100.11a protocol has become popular for communication in various types of field devices, such as flow-meter, level controllers with the PLC and Panel instruments. Both are well positioned to address the industrial needs especially because of the advanced security, channel hopping, TDMA and blacklist-based approach to guarantee real-time operations and reliability in an unprotected license-free radio spectrum.

  • Industrial wireless Ethernet is suitable for integration in processes that use data or for SCADA and PLC applications. They transmit distributed Ethernet and analogue, serial or digital I/O data to IP-based networks. It can support all common IP protocols, such as Modbus TCP, PROFINET or EtherNet/IP.

To learn more about Wireless Technologies Click Here


Return to main Industrial Automation Control page

Videos

Engineer It - How to isolate a power supply for RS485 & CAN

Bluetooth Low Energy Demonstration Kit (STEVAL-IDB002V1)

Getting started with Wi-Fi expansion board

Featured Products

None

Steute Wireless Position Switch

Shop Now
None

Groov Box AR1-BASE

Shop Now
None

Digital Pressure Sensor for Grove System

Shop Now
None

BCM20737L Bluetooth Low Energy SoC, Four STMicroelectronics Sensors

Shop Now
Compare Selected Compare Add Selected Add

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
USB-RS232-PCBA
USB-RS232-PCBA - UART Serial Converter PCB, USB to RS232

45P4108

UART Serial Converter PCB, USB to RS232

FTDI

MODULE, USB TO UART SERIAL CONVERTER PCB, FT232RQ; No. of Channels:-; Data Rate:1Mbps; Module Interface:RS232, Serial, UART, USB; Supply Voltage Min:3.3V; Supply Voltage Max:5.5V; Product Range:-; Supported Devices:FT232R RoHS Compliant: Yes

  • 146 available for next business day delivery
  • 40 UK Stock: 5-7 business days shipping for in stock items.
+ Check Stock & Lead Times

146 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

40 UK Stock: 5-7 business days shipping for in stock items.

More stock available week commencing 28/12/20

Restricted Item
MM232R
MM232R - USB Interface, Industrial, Home Projects, FT232RQ, RS232, USB

92K7196

USB Interface, Industrial, Home Projects, FT232RQ, RS232, USB

FTDI

DEV MODULE, USB TO SERIAL, UART, FT232RQ; Module Applications:Industrial, Home Projects; Compliance Standard:-; Supported Devices:FT232RQ; Module Interface:RS232, USB; Supply Voltage Min:-; Supply Voltage Max:-; Product Range:- RoHS Compliant: Yes

  • 9 available for next business day delivery
  • 292 UK Stock: 5-7 business days shipping for in stock items.
+ Check Stock & Lead Times

9 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

292 UK Stock: 5-7 business days shipping for in stock items.

More stock available week commencing 28/12/20

Restricted Item
FT2232H MINI MODULE
FT2232H MINI MODULE - USB Interface, Industrial, Home Projects, FT2232H, RS232, USB, 4.75 V, 5.25 V

80P4236

USB Interface, Industrial, Home Projects, FT2232H, RS232, USB, 4.75 V, 5.25 V

FTDI

MOD, CONVERTER, USB TO SERIAL / FIFO, 2 PORT, FT2232H; Module Applications:Industrial, Home Projects; Compliance Standard:-; Supported Devices:FT2232H; Module Interface:RS232, USB; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V RoHS Compliant: Yes

  • 48 available for next business day delivery
  • 386 UK Stock: 5-7 business days shipping for in stock items.
+ Check Stock & Lead Times

48 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

386 UK Stock: 5-7 business days shipping for in stock items.

More stock available week commencing 28/12/20

Restricted Item
ENW-59625A5DF
ENW-59625A5DF - ISM Band Transceiver, 868 MHz or 915 MHz, 802.15.4 Physical Layer, Small size SMD

64W2460

ISM Band Transceiver, 868 MHz or 915 MHz, 802.15.4 Physical Layer, Small size SMD

PANASONIC

RF MODULE, ISM, 915MHZ; Module Applications:Data Collection, Monitoring, Remote Control, Sensor Networks; MCU Supported Families:Si100x; Wireless Protocol:IEEE 802.15.4; Data Rate:250Kbps; Module Interface:I2C, SPI, UART RoHS Compliant: Yes

20 in stock

+ Check Stock & Lead Times

20 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

Available in quantity shown

Restricted Item
MRF24WN0MB-I/RM100
MRF24WN0MB-I/RM100 - Wireless Module, IEEE 802.11b/g/n, 2.4 GHz, SPI to Host Controller, External Antenna

52Y7157

Wireless Module, IEEE 802.11b/g/n, 2.4 GHz, SPI to Host Controller, External Antenna

MICROCHIP

WLAN, 802.11B/G/N, 2.412-2.472GHZ, SPI; Frequency RF:2.472GHz; Module Interface:SPI; Module Applications:RF Communications, Wireless Connectivity WiFi; Product Range:- RoHS Compliant: Yes

47 in stock

+ Check Stock & Lead Times

47 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

Available in quantity shown

Restricted Item
RN4677-V/RM100
RN4677-V/RM100 - Bluetooth® Dual Mode v4.0 Module, (BR/EDR/LE), 2.402 to 2.48GHz

44Y7793

Bluetooth® Dual Mode v4.0 Module, (BR/EDR/LE), 2.402 to 2.48GHz

MICROCHIP

BLUETOOTH, VERSION4.0+EDR, 2.402-2.48GHZ; Bluetooth Version:Bluetooth 4.0 + EDR; Supply Voltage Min:3.2V; Supply Voltage Max:4.3V; Signal Range Max:10m; Data Rate:50Kbps; Bluetooth Class:Class 2; Receive Sensitivity:-90dBm RoHS Compliant: Yes

53 in stock

+ Check Stock & Lead Times

53 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

Available in quantity shown

Restricted Item
ENW-89815A3KF
ENW-89815A3KF - Class 2 Bluetooth® v2.0 + EDR Module, 2.4Ghz - 2.483Ghz, 3V - 3.6V

58T4669

Class 2 Bluetooth® v2.0 + EDR Module, 2.4Ghz - 2.483Ghz, 3V - 3.6V

PANASONIC

BLUETOOTH 2 MODULE 2.4GHZ TO 2.483GHZ, 2.178MBPS; Bluetooth Version:Bluetooth 2.0 + EDR; Supply Voltage Min:3V; Supply Voltage Max:3.6V; Signal Range Max:-; Data Rate:3Mbps; Bluetooth Class:Class 2; Receive Sensitivity:-86dBm RoHS Compliant: Yes

127 in stock

+ Check Stock & Lead Times

127 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

Available in quantity shown

Restricted Item
ATSAMW25H18-MR210PA
ATSAMW25H18-MR210PA - SmartConnect Wi-Fi Module, 2.4GHz IEEE 802.11 b/g/n Wi-Fi ATWINC1500 SoC

43Y3819

SmartConnect Wi-Fi Module, 2.4GHz IEEE 802.11 b/g/n Wi-Fi ATWINC1500 SoC

MICROCHIP

WLAN, 802.11B/G/N, 2.484GHZ, SPI/UART; Frequency RF:2.484GHz; Module Interface:SPI, UART; Module Applications:RF Communications, Wireless Connectivity WiFi; Product Range:- RoHS Compliant: NA

83 in stock

+ Check Stock & Lead Times

83 in stock for same day shipping: Order before 5:45 pm EST (Mon – Fri. Excluding National Holidays)

Available in quantity shown

Restricted Item
UM232R
UM232R - USB Interface, Industrial Automation and Networking, CE, FCC, FT232RL, RS232, RS485, USB, 3.3 V

93K1085

USB Interface, Industrial Automation and Networking, CE, FCC, FT232RL, RS232, RS485, USB, 3.3 V

FTDI

DEV MODULE, USB TO SERIAL, UART, FT232RL; Module Applications:Industrial Automation and Networking; Compliance Standard:CE, FCC; Supported Devices:FT232RL; Module Interface:RS232, RS485, USB; Supply Voltage Min:3.3V; Product Range:- RoHS Compliant: Yes

Available for back order

+ Check Stock & Lead Times

Delivery in 5-7 business days
(UK Stock)

More stock available week commencing 08/02/21
Delivery in 5-7 business days from our UK warehouse for in stock items

Restricted Item
V600D23P55
V600D23P55 - Electromagnetic Coupling RFID, System Round Super Compact 8 dia. × 5 mm

41K8742

Electromagnetic Coupling RFID, System Round Super Compact 8 dia. × 5 mm

OMRON INDUSTRIAL AUTOMATION

RFID DATA CARRIER, 254BYTE, ROUND; Tag Type:RFID; Frequency:530kHz; Memory Size:254Byte; Product Range:-; Diameter:8mm; For Use With:V600 RFID; Height:5mm; Read/Write Cycles:100000; Tag Memory:EEPROM; Tag Technology:Passive RoHS Compliant: Yes

0

+ Check Stock & Lead Times

    More stock available week commencing 30/11/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
DB9-USB-F
DB9-USB-F - USB Interface, Industrial, Home Projects, DB9 form factor, USB, 4.25 V, 5.25 V

76R7015

USB Interface, Industrial, Home Projects, DB9 form factor, USB, 4.25 V, 5.25 V

FTDI

MODULE, CONVERTER, DB9 TO FS USB, FEMALE, 1 PORT; Module Applications:Industrial, Home Projects; Compliance Standard:-; Supported Devices:DB9 form factor; Module Interface:USB; Supply Voltage Min:4.25V; Supply Voltage Max:5.25V RoHS Compliant: Yes

0

+ Check Stock & Lead Times

    More stock available week commencing 04/01/21

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Delivery in 5-7 business days from our UK warehouse for in stock items
Non-Cancelable / Non Returnable

Restricted Item
ENW-89820A3KF
ENW-89820A3KF - PAN1720 Class 2 Bluetooth® v4.0 Module, 2.4Ghz - 2.48Ghz, 2V - 3.6V

43W5821

PAN1720 Class 2 Bluetooth® v4.0 Module, 2.4Ghz - 2.48Ghz, 2V - 3.6V

PANASONIC

BLUETOOTH 4.0 MODULE, 2.402GHZ - 2.48GHZ, 1MBPS; Bluetooth Version:Bluetooth 4.0; Supply Voltage Min:2V; Supply Voltage Max:3.6V; Signal Range Max:-; Data Rate:3Mbps; Bluetooth Class:Class 2; Receive Sensitivity:-96dBm RoHS Compliant: Yes

0

+ Check Stock & Lead Times

    More stock available week commencing 08/03/21

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
ENW-89835A3KF
ENW-89835A3KF - PAN1721 Class 2 Bluetooth® v4.0 Module, 2.4Ghz - 2.48Ghz, 2V - 3.6V

64W2470

PAN1721 Class 2 Bluetooth® v4.0 Module, 2.4Ghz - 2.48Ghz, 2V - 3.6V

PANASONIC

BLUETOOTH 4.0 MODULE 2.402GHZ TO 2.48GHZ, FULL REEL; Bluetooth Version:Bluetooth 4.0; Supply Voltage Min:2V; Supply Voltage Max:3.6V; Signal Range Max:-; Data Rate:3Mbps; Bluetooth Class:Class 2; Receive Sensitivity:-93dBm RoHS Compliant: Yes

0

+ Check Stock & Lead Times

    More stock available week commencing 08/03/21

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
MRF24WN0MA-I/RM100
MRF24WN0MA-I/RM100 - Wireless Module, IEEE 802.11b/g/n, 2.4 GHz, SPI to Host Controller, Integral PCB Trace Antenna

52Y7156

Wireless Module, IEEE 802.11b/g/n, 2.4 GHz, SPI to Host Controller, Integral PCB Trace Antenna

MICROCHIP

WLAN, 802.11B/G/N, 2.412-2.472GHZ, SPI; Frequency RF:2.472GHz; Module Interface:SPI; Module Applications:RF Communications, Wireless Connectivity WiFi; Product Range:- RoHS Compliant: Yes

0

+ Check Stock & Lead Times

    More stock available week commencing 30/11/20

Products not normally stocked that show available inventory, are in stock up to the quantity displayed. Additional quantities will ship with lead time displayed.

Non-Cancelable / Non Returnable

Non-Cancelable / Non Returnable

Restricted Item
V2DIP2-64
V2DIP2-64 - USB Interface, USB Host Interface, VNC2-64Q, SPI, UART, 5 V

79R6699

USB Interface, USB Host Interface, VNC2-64Q, SPI, UART, 5 V

FTDI

MOD, USB HOST CTRL, 2 CH, 5V, VNC2-64; Module Applications:USB Host Interface; Compliance Standard:-; Supported Devices:VNC2-64Q; Module Interface:SPI, UART; Supply Voltage Min:-; Supply Voltage Max:5V; Product Range:- RoHS Compliant: Yes

No Longer Available

Restricted Item