Setting Interrupts; Program Architectures; Tasks Supported By Ah500 Series Cpu Modules - Delta Electronics AH500 Operation Manual

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A H 5 0 0 O p e r a t i o n M a n u a l

8.5 Setting Interrupts

AH500 series PLCs uses IEC 61131-3. In the IEC 61131-3 architecture, a program is divided into several

program organization units (POUs). Every program organization unit can be developed independently, and can

be assigned a task.

The Classic architecture and the IEC 61131-3 architecture are shown below.

The figure below is a project created in ISPSoft. Program 4 is a POU of the function block type. The cyclic

programs and the interrupt program are POUs of the program type.

The interrupts supported by AH500 series CPU modules will be introduced in the following sections. Please

refer to ISPSoft User Manual for more information about creating interrupts, and writing programs.

The number of interrupts supported by an AH500 series CPU module is 288. There are mainly two types of

Cyclic task 0~cyclic task 31 (32 cyclic tasks)

Cyclic tasks are executed in every scan cycle. A cyclic task can be activated/inactivated by means of the

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