CNX Software – Embedded Systems News
Reviews, tutorials and the latest news about embedded systems, IoT, open-source hardware, SBC's, microcontrollers, processors, and more Protocol Conversion Between Modbus And PROFIBUS
Elfin EW11/EW11A is a small WiFi to RS485 unit with Modbus TCP/IP support that works either in the 5 to 18V DC (EW11) or the 5 to 36V DC (EW11A) input range.
The WiFi to RS485 adapter is offered with either an internal or external WiFi antenna, the RS485 interface is exposed through an RJ45 port, and an RJ45 to terminal block cable is usually included, as well as a DIN Rail mount.
Elfin EW11/EW11A specifications:
As you can see from the chart above there’s also a WiFi to RS232 model called the EW10/EW10A with the same specifications except for support for RS232 instead of RS485. Configuration can be done through SmartLink V8 Smart Config for Android or iOS, the device’s Web interface, or IOTService program for Windows 64-bit or 32-bit.
The Elfin-EW1X devices can be used for remote equipment monitoring, asset tracking and telemetry, industrial sensors and controls, medical devices, ATM machines, universal power supply (UPS) management units, telecommunications equipment, handheld instruments, and other applications required serial to TCP/IP
Hi-Flying Technology also offers other Elfin-branded serial devices with GPRS, 4G, NB-IoT, and so on, You’ll find more details in on the company’s website including user manuals. The EW11A used to be sold on Amazon, but it’s out of stock right now. However, I could also find it on Aliexpress for $11.73 to $15.75 with the price depending on the selected model and whether you purchase a kit. Note the EW11A should be the model with an internal antenna, and the EW11A-0 includes an external antenna.
Thanks to Craig for the tip.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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