Hello to everyone!!!

I am making out an automation project offer. My customer prefers simatic s7. He doesn't know the reason I think he is entranced with name of SIEMENS only.

I have little experience with mitsubishi plc's. I would like some technical reasons to support my choice in order to convince my customer to use mitsubishi plc.

Thank you in advanced for any help.

Hi

I'd say Mitsi were less expensive, easier to program, and their support (through my experience) is 100 times better.

Cheers

Paul Ked

Mitsubishi are quite slow on developing "the newest" modules (where's Profinet? The Modbus modules are quite "new" compared to other....), and I would say that most other manufacturers releases the "hottest" products much sooner than Mitsubishi which of course has it's drawbacks. But then again, when Mitsubishi first releases a product it is tested, verified, checked and studied to make sure that it is of the best quality. I think Mitsubishi products have that little edge of extra quality when it comes to the hardware.....

thank you very much for you replies!!

Modbus for Q has been around for years. Modbus for FX3U is fairly new. Profinet I don't expect to see. But then, we're in the US, and Profibus and its variants are bigger in Europe.

Agree with you. Modbus has been around for "years" for Mitsubishi (slave only on the old A-Series), however the Master has only been there a couple of years for the Q. But then again; Modbus was developed in the 80's, and has been very popular in Europe since the 90's so I would say that they were VERY late with the module..... We've used Beijer Developed function blocks for Modbus up til a couple of years ago (when the module(s) came).

So relatively speaking and comparing to others, the Modbus module(s) came VERY late!!!

Why shouldn't we see Profinet? Most distributed IO supports Profinet and so does other brands (to be able to communicate with distributed IOs of other brands), so why shouldn't Mitsubishi develop a ProfiNet module?

Therefore I stand by my previous statement: Mitsubishi use a lot of time testing and approving any product to ensure that there are no bugs, but then again this causes most products to come out a bit late compared to others.

I never said you shouldn't see it, I simply said I don't expect to see it.

For some reason they opted for Modbus/TCP in the Q for their open Ethernet protocol. And they now have a third party offering a bridge to Ethernet/IP. So I would suspect the only way you'll see Profinet is a bridge to Mitsubishi Ethernet. But hey, I don't develop the products, only Japan knows what's coming, and they usually don't tell.

Exactly