PmDLL - licence for access to external DLL libraries
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 for PC.
The drivers are DLL libraries
for OS Windows
in most cases, they are available on the Internet pages of the card producers and they are mostly 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.
The usage of the PmaDll
object requires purchase of the "PmDLL" licence
. With the freeware version PmFree
, or when developing the application (with development environment
for testing purposes), this component is always functional.