Hi all, Thank you for your responses. As replied by you all, I did not see much change between the two types of communication and it worked immediately.
Thanks again, Gokul --- Rolf Kalbermatter <[EMAIL PROTECTED]> wrote: > "Gokul" <[EMAIL PROTECTED]> wrote: > > >I am trying to acquire data using LabView from > KV16AR > >PLCs data memory. A program in PLC is going to dump > >data in PLCs data memory and LabView is going to > >simultaneously acquire it. The transmission is over > >serial port and I have done serial port acquisition > >before with temperature controllers. > > > >I felt both type of acquisition are the same...but > >still wanted to ask... Is this any different? ... I > >have never worked with PLCs before..thats why > wanted > >to know. > > Well serial programming is serial programming! But > then > no device or protocol is really the same. RS-232 > means > recommended standard and is not always followed to > the > word but even then only really specifies the > electrical > chararacteristics. > > The protocol depends on the the more or hopefully > less > warped mind of the original developer. As long as it > is > decently documented there is always a way to make it > work, > serious bugs in the device firmware excluded. If you > have > working C or even Basic sample code that usually > helps too > to understand what the protocols intimate details > are. > > There is no reason to assume that PLCs are worse or > better > in their design of the cummunication protocol than > any other > device, other than there might have been a tendency > in the > past to cook up its own protocol to make sure they > can sell > their own programming tools and peripheral devices. > > Rolf Kalbermatter > CIT Engineering Nederland BV tel: +31 (070) 415 > 9190 > Treubstraat 7H fax: +31 (070) 415 > 9191 > 2288 EG Rijswijk http://www.citengineering.com > Netherlands mailto:[EMAIL PROTECTED] > > __________________________________ Do you Yahoo!? Yahoo! Domains � Claim yours for only $14.70/year http://smallbusiness.promotions.yahoo.com/offer
