Modbus TCP vs Modbus RTU over TCP

[ldandrews]

Hi,
I am looking at using NModbus on a project that requires Modbus RTU
over TCP, and want to know if NModbus supports RTU over TCP. I know it
supports Modbus TCP, but I've read there are a few differences between
this protocol and Modbus RTU over TCP.

So does NModbus support both protocols or just Modbus TCP?

Thanks.

[Scott Alexander]

Both are supported by NModbus.

Scott

[ldandrews]

Hi Scott,
Thanks for the confirmation. In my case I want to make a Modbus
slave, so I presume I use the ModbusSlave class. Do I need to set any
properties or tell the object to expect Modbus RTU over TCP instead of
Modbus TCP? Or does it just figure it all out somehow?

Thanks,
Leigh

[Scott Alexander]

Ah, rtu over tcp/ip has only been implemented for the master thus far.
Let me have a look how much work this would be.

On Aug 25, 2009, at 2:24 PM, ldandrews <ldan...@slingshot.co.nz>
wrote:

[ldandrews]

That would be fantastic if you could add it!

Thanks again.

On Aug 26, 6:11 pm, Scott Alexander <sja...@gmail.com> wrote:
> Ah, rtu over tcp/ip has only been implemented for the master thus far.  
> Let me have a look how much work this would be.
>

> On Aug 25, 2009, at 2:24 PM, ldandrews <ldandr...@slingshot.co.nz>  

[ldandrews]

Hi Scott,
Have you had a chance to look into adding Modbus RTU over TCP into the
slave yet?

Thanks.