Siemens CP 243-2 Operations Instructions download pdf (Page 6)

6

To help you understand the tasks of AS-

Interface and its position in the control

hierarchy in industrial communication,

here is a short explanation of the basic

properties of the various levels.

PROFIBUS

AS-Interface

Host computer

Supervisory level

Production or

process control level

Programmable controllers

e.g. SIMATIC

S7

Sensors, actuators

e.g. BERO, contactors,

coupling relays

Actuator/

sensor level

Industrial Ethernet

The various levels

in industrial communication

Supervisory level

At the highest level, the supervisory

level, the computers on the manage-

ment level in a factory, or sometimes

even in more than one factory, are inter-

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