Hi

My project have Four sensors (4-20 mA) in corners of the building.

we need to show the readings to the control room inside the building wirelessly with affordable price.

is our proposal is to have LOGO! in each corner to read the sensors and one Master LOGO! in the control room.

Radio communication is prefect but I could not find TCP/IP to radio device from SIEMENS.

Have any one tried it before ?

could you please propose me an affordable solution

ixo65

LOGO! can't directly Wireless.

You need a WLAN device with LAN outputs.

Scalance W720/760

But you're sure, that the LOGO! can work with sensors? With protocol have sensors?

  Scalance W are too expensive.

Sensor is 4-20 mA so it work with LOGO!

https://www.tindie.com/products/lensentech/16di-16do-plc-wireless-link-modules-1-pair/

I am looking for something similar to this cheap radio communication

Basically, LOGO! read 4-20mA as a slave and send the info throw TCP/IP protocol

another LOGO! will be the master which will receive the signals throw TCP/IP protocol

I believe the wireless medium will not be an issue 

If you have a router, you only need Access Points or WLAN repeaters with additional LAN connector. Nearly all routers are able to connect to WLAN repeaters. After WLAN connection all devices plugged to the LAN connector of the repeater are also selectable over the router, where your master Logo is connected. Try out one repeater and if okay, then expand to required number of repeaters. Also have a look to the maximal possible amount of repeaters for your router.

Regards, Scorp

To access and network LOGO!s within the same network at a clients business I am using IOGEAR Ethernet-2-WiFi Universal Wireless Adapters.

I get them from Amazon for ~$45 US.

Here is a link:  https://amzn.to/33VgGze

Hi,

also have a look to TP-Link Nano router. This one can be configured as WLAN Router or Repeater and has a LAN connector too, a very small housing and good price.

Hope this helps