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No. 1753 Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: RS422 converter 2020-07-22

Thank you for helping us to make the best decision.


> Sollae Systems wrote:
> ------------------------------------
> Dear Johan,
>
> We are sorry we cannot find any information about Modbus configuration from the screenshot you sent.
> Since Modbus RTU and Modbus TCP are listed in HMI's manual, HMI device probably supports Modbus protocol.
> Please contact HMI device's manufacturer to confirm it.
>
> As mentioned in an earlier reply, you can adopt one among three topologies for your system, depending on the protocol of HMI devices (Modbus RTU or Modbus TCP).
>
> Best regards,
>
>
> > Johan wrote:
> > ------------------------------------
> > Again, HMI setting(1).zip
> >
> >
> > > Sollae Systems wrote:
> > > ------------------------------------
> > >
> > > Dear Johan,
> > >
> > > I cannot see any attached file.
> > >
> > > Please check it.
> > >
> > >
> > > > Johan wrote:
> > > > ------------------------------------
> > > > Hello,
> > > >
> > > > Please see the attached file
> > > >
> > > > Thanks for responding so fast.
> > > >
> > > >
> > > > > Johan wrote:
> > > > > ------------------------------------
> > > > > Good morning,
> > > > >
> > > > > Sorry for the misunderstanding.
> > > > > Please look at the attached file.
> > > > > This is the configuration of the HMI.
> > > > >
> > > > > Feel free to ask more information.
> > > > >
> > > > > gr. Johan
> > > > >
> > > > >
> > > > > > Sollae Systems wrote:
> > > > > > ------------------------------------
> > > > > > Dear Johan ,
> > > > > >
> > > > > > Thank you for your information.
> > > > > >
> > > > > > As we can see from the documents you sent, these devices are using Modbus protocol to communicate with each other.
> > > > > > In this case, instead of normal RS422 to Ethernet Converter, we should use Modbus gateway to make these products communicate with each other via Internet/LAN.
> > > > > > The Modbus gateway helps to convert Modbus Serial to Modbus TCP and vice versa.
> > > > > > We recommend you to use SMG-5420 (RS422/485 Modbus Gateway) in your project.
> > > > > >
> > > > > > Since HMI Monitouch supports both Modbus Serial and Modbus TCP, there are three possible ways to install your network.
> > > > > >
> > > > > > Topology 1:
> > > > > >
> > > > > >
> > > > > >
> > > > > > - Advantage: require only one Modbus gateway to connect to 4 HMI Screens.
> > > > > > - Disadvantage: The distance between four HMI screens is limited due to RS422 characteristics.
> > > > > >
> > > > > > Topology 2:
> > > > > >
> > > > > >
> > > > > >
> > > > > > - Advantage: The distances between four HMI screens have no limit.
> > > > > > - Disadvantage: require four Modbus gateways to connect to 4 HMI Screens.
> > > > > >
> > > > > > Topology 3:
> > > > > >
> > > > > >
> > > > > >
> > > > > > - Advantage: The distances between four HMI screens have no limit. The connections between 4 HMI Screens require no additional Modbus Gateway => cost efficiency.
> > > > > >
> > > > > > If you use topology 3, you may need to configure the HMI screen to use Modbus TCP.
> > > > > >
> > > > > > Please note that the current firmware of SMG-5420 (RS422/485 Modbus Gateway) only supports a single TCP connection.
> > > > > > It means at the one time, it only accepts the connection from one device. So right now Topology 1 is a suitable solution.
> > > > > > Fortunately, we are going to release a new firmware that supports multi-connection. It means all Topology 1, Topology 2, and Topology 3 can be used.
> > > > > >
> > > > > > The exact release date of the new firmware is yet not fixed but will be within a month from now.
> > > > > >
> > > > > > I hope the above is useful to you.
> > > > > > Please feel free to contact me if you need any further information.
> > > > > >
> > > > > > Thank you,
> > > > > >
> > > > > > Best regards,
> > > > > >
> > > > > > Khanh,
> > > > > > Sollae Systems's Technical Support Team
> > > > > >
> > > > > > > Johan wrote:
> > > > > > > ------------------------------------
> > > > > > > See the attached files
> > > > > > >
> > > > > > > gr. Johan
> > > > > > >
> > > > > > >
> > > > > > > > Johan wrote:
> > > > > > > > ------------------------------------
> > > > > > > > Good morning,
> > > > > > > >
> > > > > > > > Please see the attachment file for information.
> > > > > > > >
> > > > > > > > gr. Johan
> > > > > > > >
> > > > > > > >
> > > > > > > > > Sollae Systems wrote:
> > > > > > > > > ------------------------------------
> > > > > > > > > Dear Johan,
> > > > > > > > >
> > > > > > > > > Thank you for your interest in our products.
> > > > > > > > >
> > > > > > > > > It is possible to use our products to make the connection between a Mitsubishi PLC and a Monitouch HM over Ethernet.
> > > > > > > > >
> > > > > > > > > You may need to choose the product depends on how Mitsubishi PLC and a Monitouch HM interact with each other.
> > > > > > > > > In case of using Modbus RTU or ASCII, Modbus Gateway can be used.
> > > > > > > > > In other cases, RS422 to Ethernet converters can be used.
> > > > > > > > >
> > > > > > > > > To choose the right products, please check which protocol Mitsubishi PLC and a Monitouch HM interact with each other.
> > > > > > > > > If you can send us the model name of the devices in your system and the protocol you are using, we could provide a more detailed suggestion.
> > > > > > > > >
> > > > > > > > > We hope the above is useful to you.
> > > > > > > > > Please feel free to contact us if you need any further information.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Johan wrote:
> > > > > > > > > > ------------------------------------
> > > > > > > > > > Hello.
> > > > > > > > > >
> > > > > > > > > > Normally we have a RS422 4-wire connection between a Mitsubishi PLC and a Monitouch HMI.
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > case:
> > > > > > > > > > Is there a possibility to connect more HMI'ss with RS422(4wire), on one PLC with RS422 connection, using RS422 to Ethernet converters.
> > > > > > > > > >

Writer Johan Company Teunis Industrie