> On Oct 27, 2017, at 9:35 PM, Fabio Luis Girardi via Lazarus > <lazarus@lists.lazarus-ide.org> wrote: > > Em 27 de out de 2017 21:58, "Daithi Haxton via Lazarus" > <lazarus@lists.lazarus-ide.org <mailto:lazarus@lists.lazarus-ide.org>> > escreveu: > > > On Oct 27, 2017, at 8:26 AM, Marcos Douglas B. Santos via Lazarus > > <lazarus@lists.lazarus-ide.org <mailto:lazarus@lists.lazarus-ide.org>> > > wrote: > > > > I would like to propose a discussion about "What is the relevance of > > Object Pascal nowadays". > > I don't want waste your time. I just want to know if we are growing > > and being more relevant or not. > > > > We use Lazarus/Free Pascal to build all of our production applications. These > are basically instrumentation packages and data loggers for large machines > used in automotive manufacturing and quality control. It’s cross platform > (Linux/Windows), fast and easy to use and maintain. What’s not to like? > > > Hi Dave! > > What devices/plc/protocols you are using on your dataloggers? > >
Our devices are mostly proprietary DSP boards, usually connected via USB but sometimes still serial (Synapse is a great lib for the latter, BTW). We use mostly AB PLC’s, but sometimes Mitsubishi or Siemens, and we communicate to them either via a vendor communication tool (DDE and RS-LINX or TopServer) or using the excellent libplctag (see github) to talk directly. We’ve looked as Pascal SCADA for HMI work, and will be investigating it further in the future, I can assure you. The other really nice thing about using Lazarus in our context is the ability to load the development environment directly onto the target machine and debug in a real environment - with Visual Studio or other commercial tools that’s just not practical due to licensing/cost. Be well, Dave H.
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