Wireless forecourt communicator WFC

WFC wireless forecourt communicator allows communication with any brand of dispensers (fuel, LPG, CNG), tank probes and consoles, price poles in a wireless way without a need to put any cables.

WFC has a rich set of electric interfaces on board (various types of current loop interfaces, voltage driven interfaces, RS-485, RS-232) suiting to connection of any dispenser brand. WFC has additional port for connection of RFID readers installed on dispensers.

Communication with WFC is done over a secured Wi-Fi network (2.4 GHz). Configuration of WFC is done using a web browser.

WFC allows way for integration with existing management systems. Its dimensions are extremely small with a size of a credit card, which makes its suitable for installation inside any third-party hardware.

Appointment #

Various wired interfaces are often applied for communication exchange between the management systems and the forecourt equipment at petrol station (dispensers, price poles, others): various types of current loop interfaces, voltage driven interfaces, RS-485, RS-422, RS-232, others. These interfaces have many benefits, but all of them have a common disadvantage – they are wired, so require putting of cabling for connection. As a rule wires are put in underground pipes, which requires excavation (removing the top layer of asphalt or other cover, digging of trenches, laying of cables, etc.).

Wireless communication is an alternative to wired connection, it simplifies the whole process and eliminates a necessity of placing cabling – the management systems and the forecourt equipment are able to communicate, but communication is done over-the-air instead of wired cabling.

The WFC communicator works in conjunction with the PTS-2 forecourt controller, where the WFC communicator provides wireless communication and connection to devices using various hardware interfaces and the PTS-2 controller manages communication with the connected devices (dispensers, ATG consoles and probes, price poles, readers and AVI systems). Wireless communication is done within a secured Wi-Fi network (2.4 GHz), which is managed by a separate Wi-Fi router.

Wireless forecourt communicator connection to forecourt equipment
Click on image to enlarge

Wireless forecourt communicator WFC has advantages as quick of mounting, flexibility of settings, high security, high noise immunity and others.

Wireless forecourt communicator connection to forecourt equipment
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Presence of a rich set of interfaces on the WFC communicator boards allows it to connect to almost all existing brands of dispensers in a wireless way without a need to put any cables. The PTS-2 forecourt controller undertakes communication with the dispenser using a communication protocol and the WFC communication undertakes wireless connection to it.

Wireless forecourt communicator connection to dispensers
Click on image to enlarge

Besides the wireless communication the WFC communicator is also able to work in a wired mode, in which the WFC serves as a universal interface converter for dispensers able to convert from input RS-232 or RS-485 interfaces in many other output interfaces:

  • 2-wire current loop interface
  • 3-wire current loop interface
  • 4-wire current loop interface
  • 2-wire voltage driven interface

Dimensions of the WFC communicator board are extremely small with a size of a credit card, which makes its suitable for installation inside any third-party hardware.

Technical characteristics #

PARAMETER VALUE
Power supply voltage 12 V DC
Current consumption 1 A max
Temperature range from -40°C to +60°C
Weight 200 g
Overall dimensions 85 x 58 x 30 mm

WFC communicator is using ESP32-WROOM-32UE-N4 MCU inside. Information on its technical characteristics, certificates and permissions are given in its technical guide, which is available for download from the following link: https://espressif.com/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf.

Communication ports #

PORT NAME INTERFACE TYPE APPOINTMENT
MAIN INTERFACES GB 2-wire current loop interface Connection of dispensers using 2-wire current loop interface, for example 2A, AG Walker, ANGI International, Baransay, Batchen, Bennett, CFT Clean Fuel, Compac, EuroPump, Falcon, Fuelsis, Galileo, Gilbarco, Greenfield, Kalvacha, Kraus, Maser, Meksan, Mekser, PEC (Gallagher Fuel Systems), Petposan, Petrotec, Prowalco, Pump Control, Salzkotten, Tankanlagen Salzkotten, Wayne Dresser (USCL communication protocol), Wertco, Yenen, others
TH 3-wire current loop interface Connection to dispensers using 3-wire current loop interface, for example Tokheim, Satam, Emgaz Dragon, Kalvacha, Kraus, others
LP 3-wire current loop interface Connection to dispensers using 3-wire current loop interface, for example Logitron, Emgaz Dragon, Gilbarco Marconi, Fornovo LPG, Vanzetti, others
HY 4-wire current loop interface Connection to dispensers using 4-wire current loop interface, for example HongYang, Star, others
NZ 2-wire voltage driven interface Connection to dispensers using 2-wire voltage driven interface, for example Actronic, Agira, Batchen, Compac, Intermech, PEC (Gallagher Fuel Systems), others
RS-485 RS-485 interface (2 wires: line A, line B) Connection to dispensers and register meters using RS-485 interface, for example 2A, Adast, Astron, Bailong, BlueSky, Censtar, Changlong, Coptron, Coritec, Datian Machines, DEM G. Spyrides, Develco, DINT, DongHwa Prime, Durulsan, Eaglestar, Ecotec, EKOSIS, EPCO, EuroPump, Fuelsis, Furen HighTech, Hitachi, IPT, Korea EnE, Kwangshin, Lanfeng, Liquid Controls, Meksan, Mepsan, Midco, Mithra Fueling, MM Petro, MRT, MsGas, Neotec, ORCA, PetroMeccanica, RealTech, Safe, Sanki, Shelf, Shibata, Tatsuno, Tattan, Tiger, Tokico, Tominaga, TrueTech, Wayne Dresser, Welldone, Zcheng, others.
Connection of price poles, readers and AVI systems.
RS-232 RS-232 interface (3 wires: TxD, RxD, Gnd) Connection to dispensers and register meters using RS-232 interface interface, for example Gilbarco EMR, Lanfeng, Total Control Systems, others.
Connection of price poles, readers and AVI systems.
ADDITIONAL INTERFACES RS-485 RS-485 interface (2 wires: line A, line B)
  1. Connection of readers installed on dispensers
  2. Wired connection to WFC communicator from the management system
RS-232 RS-232 interface (3 wires: TxD, RxD, Gnd)

Board overview #

WFC Wireless forecourt communicator board overview
Click on image to enlarge

Wireless communication #

In order to use wireless communication between the PTS-2 forecourt controller and the WFC communicators they need to be configured to use the same network, which is established by a separate secured Wi-Fi router:

At this you can locate a separate WFC communicator for each of the forecourt devices you need to communicate with. Or you can unite several such devices to use the same single WFC communicator if the used communication interface allows it, for example if these devices are using the RS-485 interface and the same communication protocol.

Wireless forecourt communicator connection to forecourt equipment
Click on image to enlarge

Wired communication #

At wired communication the WFC serves as a universal interface converter for dispensers able to convert from input RS-232 or RS-485 interfaces in many other output interfaces:

  • 2-wire current loop interface
  • 3-wire current loop interface
  • 4-wire current loop interface
  • 2-wire voltage driven interface

In such a way, application of the WFC communicator allows to connect dispensers with different hardware interfaces in a common way. At this connection of the PTS-2 forecourt controller to the WFC communicator is to be done in a wired way using RS-485 interface.

WFC Wireless forecourt communicator connection in wired way to forecourt controller
Click on image to enlarge

Order information #

WFC communicator PCB board with terminal blocks WFC communicator PCB board with terminal blocks
Order code: WFC-PCB-001
 
WFC communicator in a mounting box WFC communicator in a mounting box
Order code: WFC-BOX-001

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