Glossary - Siemens SIMATIC MV440 Operating Instructions Manual

Glossary

Actuator
Component at the output section of a controlled system, which intervenes in energy or mass
flows and causes changes.
ASM
Interface module, synonym of communication module.
ASM 456
The ASM 456 communication modules are slave modules for operating components via
PROFIBUS DP/DP-V1 on any controller.
Automation system
An automation system is a programmable logic controller consisting of at least a central
processing unit, a variety of input and output modules as well as operator control and
monitoring (HMI) devices.
Bus
A cable or conductor system used for data transfer among the components of a computer
system. Buses are characterized by the number of bits they transfer at any one time. There
are serial bus systems (one bit after the other) and parallel bus systems (multiple bits
simultaneously over several lines).
Communication module
Communication modules can be used to integrate RFID readers and code reading systems
into an automation system, e.g. PROFINET, PROFIBUS, or even ET 200pro distributed I/O.
Integration is independent of the technology actually employed. The reader always
communicates with the communication module via an RS-422 interface.
Contour
Solid line that runs completely along the border of an object, in other words, it consists solely
of border points.
SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06
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