Pixsys TD240 series, Operation Manual, Page: 25 / 92

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7.2 The development environment
The TD240 is a HMI graphical terminal with an integrated PLC.
It allows a centralization of all the operational logic of the system
that must be supervised and controlled.
The graphical part of the development environment must manage
the visible pages and their fundamental items (e.g. synthesis,
push-buttons, numerical and text edit boxes, images) and the
interaction between various objects and the memory areas (the
memory areas which they must reference for push-buttons,
indicators and images).
The logic of the operation of the system, i.e. the way in which the
memory areas must interact among each other, is instead
managed by the PLC.
The TD240 terminal is also a PLC, therefore it manages graphics
and logic, leaving other connected PLCs the sole task of
"detecting the information" (e.g. digital and analog inputs,
encoders etc.) and "to control the actuators" (e.g. digital and
analog outputs etc.).
The development environment has two sub-environments:
•
TdDesigner: manages all resources that are strictly related to
the graphics.
•
PLProg: manages the interactions between the memory areas
of the terminal (Ladder code, common to other Pixsys PLCs,
essentially the PL250 and TCT500).
APPLICAZIONE AMBIENTE DI SVILUPPO
GRAFICA
LOGICA
TdDesigner
PLProg4.xx