EZWifi - Wireless Connection to your Automation Control Products

June 9, 2017
Often times, when engineering or maintenance is initially setting up or making an update to an HMI/Operator Interface, PLC, or a Marquee message display, it can sometimes be cumbersome to physically connect to the device.

Often times, when engineering or maintenance is initially setting up or making an update to an HMI/Operator Interface, PLC, or a Marquee message display, it can sometimes be cumbersome to physically connect to the device. Perhaps the incorrect programming cable was ordered, or a mistake on pin-outs was made when creating an in-house cable, or the device is not easily accessible (i.e 20 ft. in the air in the case of a marquee). Ethernet may be available in some plants, but this means the user will require access to the network which is often restricted by IT. With EZWifi, one no longer has to worry about connecting to the device even if in an inaccessible location. Simply install EZWiFi on the EZAutomation device, and directly from your computer connect over WiFi.

When designing EZWiFi, two concerns came up. Number one, most plant IT departments do not allow laptops access to the internal network. To overcome this, EZWiFi is equipped with two wireless modes: “Infrastructure Mode”, which connects any laptop to the device as long as they are on the internal network. Or the 2nd mode, “AdHoc” which does not require any access point or router and instead establishes its own to allow communication between EZWiFi and a PC, leaving IT happy.

The second concern was related to safety in that a 3rd party could not randomly access the device when in “AdHoc” mode. Hence, each WiFi module is individually programmed with a unique SSID and password. These are also easily programmable through the respective EZAutomation software if the password to the project is known.

EZWiFi supports 802.11 b/g/n protocols. It is conveniently powered with either 24VDC or 2AA Batteries. Software Security formats include WPA/WPA2, with Encryption WEP/TKIP/AES. Network Protocols supported are IPv4, TCP/UDP/HTTP/FTP. EZWiFi is also FCC certified.

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