Modbus Slave

[Mareike]

Hi all,

I have to write a modbus client in LabView. My pc is a slave and has to
communicate with a SPS-station via RS232. Is there a vi available with a
smart interface for read/write ?

Thanks

[Lab Viewer]

Hi,
Try smplserl.llb in LV examples\instr\ ... it works for me.
good luck !

[urs]

Mareike schrieb:

> Hi all,
>
> I have to write a modbus client in LabView. My pc is a slave and has to
> communicate with a SPS-station via RS232. Is there a vi available with a
> smart interface for read/write ?
>
> Thanks

Mareike,

try the dutch companie AIR's free modbus library - I think it's a modBus
Master only, but might be a good base to start with.

http://www.air.nl/home.htm

Best Regards
Urs

[Mareike]

Hi urs.

Great, the Modbus master works fine.
But I'm looking for a slave-implementation. Do you have a solution?

Rene



"urs" wrote in message news:3B9470BC.5810708B@no.email...
> Mareike schrieb:
>
> > Hi all,
> >
> > I have to write a modbus client in LabView. My pc is a slave and has to
> > communicate with a SPS-station via RS232. Is there a vi available with a
> > smart interface for read/write ?
> >
> > Thanks
>
> Mareike,
>
> try the dutch companie AIR's free modbus library - I think it's a modBus
> Master only, but might be a good base to start with.
>
> http://www.air.nl/home.htm
>
> Best Regards
> Urs
>
>

[ursb@my-deja.com]

Rene,
sorry, no.
but you might use a few of the VIs to write your own slave and then send me a
copy 😉
Urs

Mareike schrieb:

> Hi urs.
>
> Great, the Modbus master works fine.
> But I'm looking for a slave-implementation. Do you have a solution?
>
> Rene
>
> "urs" wrote in message news:3B9470BC.5810708B@no.email...
> > Mareike schrieb:
> >
> > > Hi all,
> > >
> > > I have to write a modbus client in LabView. My pc is a slave and has to
> > > communicate with a SPS-station via RS232. Is there a vi available with a
> > > smart interface for read/write ?
> > >
> > > Thanks
> >
> > Mareike,
> >
> > try the dutch companie AIR's free modbus library - I think it's a modBus
> > Master only, but might be a good base to start with.
> >

> > http://www.air.nl/home.htm
> >
> > Best Regards
> > Urs
> >
> >

[Lab Viewer]

Hi again,
sorry for my first answer. Now I understand what you need (hope so). I have another 'link' for you ... (Eurotherm Comms(6.5).llb - Driver for all Eurotherm instruments that employ the Modbus or Bisync protocols )http://www.users.globalnet.co.uk/~pseudo/
... at least is for modbus/rs232. If it's not good, you'll have the opportunity for another bad vote 😉
regards