PmDLL - licence for access to external DLL libraries
Basic information:
The PROMOTIC system allows the access to functions (methods) of
external DLL libraries by means of the
PmaDll object. The most often examples how to use them, are as follows:
Access to drivers of I/O cards:
Producers of input/output HW cards (
Axiom, Advantech, ADlink, etc.) supply
drivers for most HW cards.
The drivers are
DLL libraries for
Windows OS in most cases, they are available on the Internet pages of the card producers and they are usually
free of charge. By means of the
PmaDll object it is possible to call functions of these DLL libraries, for example, read/write binary or analog signals, etc.
Trade terms:
The usage of the
PmaDll object requires purchase of the
"PmDllActiveX" licence. When developing the application in the freeware mode
PmFree, or with
development environment and while testing it in runtime, this component is always functional.