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Posted

Hi everyone,

I’m a beginner in PLC programming and networking, and I need some advice. Here’s my plan for a project, and I’d like to know if it’s possible or if I need to change something : I will connect two FX3G PLCs using FX3G-485-BD modules for communication (RS-485). On one of these PLCs, I will install an FX3U-ENET-ADP Ethernet module. I want to connect two barcode sensors (Ethernet-based) to this Ethernet module through a switch.

My questions:

Is this configuration possible?

Can the FX3U-ENET-ADP module (and PLC) read data directly from Ethernet barcode sensors?

If not, what would be the correct approach to achieve this?

Any advice, examples, or documentation references would be very helpful. Thank you!


Posted

I don't think that module is capable of that type of communication.  It's really only intended as a programming port.  You might need the FX3U-ENET.  it mounts on the right side bus, and is more capable.

  • Like 1
Posted (edited)

Oh, that’s really helpful information! I’ve read a bit of the manual, but I’m still unsure about a few things. Does this module need any additional extensions to work with the FX3G? If I use this module, can it also handle communication functions (replacing the FX3G-485-BD)? It seems like this module is quite rare and not very common in my country. Also, what about the FX3U-ENET-L? Can the FX3U-ENET-L meet my requirements, since it’s more commonly recognized here..

Edited by baharii
Posted

My main consideration is the distance between the sensor and the PLC, as well as the fact that the working area is prone to interference. For this reason, using Ethernet-based communication would be more suitable. In addition, having a PLC equipped with an Ethernet port would also be beneficial for future integration with other systems.

Posted

Hola! te puedo mostrar un ejemplo que tal vez te ayude, es similar la aplicacion que quieres hacer

Estoy trabajando en un proyecto de trazabilidad, en esta linea de produccion exiten 13 estaciones de trabajo, cada estacion cuenta con su PLC Mitsubishi, depende la estacion varia el plc, Unos tienen FX3U. FX3G, FX5UC y otros Qseries
En este trabajo se integraron Camaras DataMan 290. este es un lector de códigos de barras de la marca COGNEX, dentro del software DATAMAN setup tool, el protocolo disponible para Mitsubishi es SLMP, aqui en esta parte se pone la direccion IP del PLC tanto como la del lector y el puerto de comunicacion (puerto host 0x = 3000 , valor en hexadecimal que en decimal es 12288) que se va a utilizar, tambien se mapea las entradas, salidas y marcas que se pueden utilizar con este lector

ImagendeWhatsApp2025-09-03alas11_09.37_d26bee18.thumb.jpg.3b5ac18f82febfee496bfa619bb70409.jpg

Referente a tu duda, Yo utilice los modulos FX3U-ENET-ADP y FX3G-CNV-ADP para los PLC´s FX3U, para los FX5 y los Qseries ya no es necesarios dichos adaptadores, Dentro del programa de GXWORK 2 en la parte de parametros, asignamos Direccion IP, mascara y puerta de enlace, tambien se tiene que agregar el tipo de protocolo de comunicacion y el puerto como se ve en la imagen:
 

Captura.thumb.PNG.47575519509710f5fabc5ce1d7ea371b.PNG

 

En este ejemplo puse la Camara cognex en el canal 2, donde sale el puerto 12288, Los demas canales los utilice para comunicacion con Kepserver y otro sensor (5001 y 4001)

Espero que pueda servirte de ayuda, Saludos desde MX, San luis Potosi! 

  • Like 1
Posted

Wow, that’s really useful information! Now I at least have a clearer picture and confidence that the system I’m working on has the potential to succeed. Later, when I’m in the middle of the implementation process and if I run into any issues, I’ll reach out again. Thank you, Josue Badilo!

  • Like 1

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