Siemens SIMATIC S7-1500/ET 200MP System Manual page 376

Interrupt, cyclic
The CPU generates a cyclic interrupt periodically within a parameterizable time grid and then
processes the corresponding organization block.
Interrupt, hardware
A hardware interrupt is triggered by interrupt-triggering modules due to a certain event in
the process. The hardware interrupt is signaled to the CPU. The CPU then processes the
assigned organization block according to the priority of this interrupt.
Interrupt, time-delay
The time-delay interrupt is one of the program execution priority classes of SIMATIC S7. The
time-delay interrupt is generated upon expiration of a timer started in the user program. The
CPU then processes the corresponding organization block.
Interrupt, time-of-day
The time-of-day interrupt is one of the program execution priority classes of SIMATIC S7.. The
time-of-day interrupt is generated based on a defined date (or daily) and time (e.g. 9:50 or
every hour, every minute). The CPU then processes the corresponding organization block.
Interrupt, update
When it receives an update interrupt, the operating system calls the update interrupt OB. This
may happen if you changed a parameter on a slot of a device.
IP address
The IP address is made up of four decimal numbers with a range of values from 0 through
255. The decimal numbers are separated by a dot (for example 192.162.0.0).
The IP address consists of the following:
• Address of the network
• Address of the device (PROFINET interface of the IO controller/IO device)
Isolated modules
In the case of isolated input/output modules, the reference potentials of the control and load
circuits are galvanically isolated, e.g. by means of optical isolators, relays or transformers.
Input/output circuits can be connected to common potential.
Load current supply
Supply of the module's input and output electric circuits.
Automation system
System Manual, 01/2023, A5E03461182-AK
Glossary
375