SIMATIC PCS 7 cabinet design
Introduction
Cabinet packaging system
■Overview
The cabinet design for components close to the process (auto- mation systems and I/Os) fulfills the technical and economical demands placed on the AS 488/TM automation systems.
The cabinets consisting of
As a result of their variable modular design, the cabinets can be readily adapted to different types of system (for batch processes or continuous processes) and system sizes.
The Siemens standard cabinet 8MC with degree of protection IP 40 is the preferred basic cabinet. Cabinets with degree of protection IP 20 and IP 55 are alternatively available.
Modular design
•AS 488/TM system unit
•ET 200M I/O unit (ET 200U/ET 200B on request)
•Basic cabinet, consisting of framework, door, outer walls, inter- nal mechanical parts and power supply assembly with:
-Compartment for documents
-Trim
-AC 230 V socket
-AC 230 V or DC 24 V cabinet illumination
-I & C monitoring via automation system or cabinet lamp
Options
•
•I/O modules for ET 200M I/O unit
High flexibility
•Future compatibility as result of universal,
•Modular packaging system permits flexible adaptation to the respective application
•Basic and expansion cabinets based on the same set of mod- ules
•Up to 4 system units or 6 I/O units can be fitted in a cabinet
•System units and I/O units can be combined within the cabinet
•Side walls or partitions can be selected specific to the applica- tion
•Cabinets can be screwed together into double units or rows
•Design supports installation, commissioning, servicing and re- pairs
•Design supports correct handling when replacing modules
•All installation, commissioning, servicing and repair work can be carried out from the front of the cabinet
•Design of power supply assembly: either with Siemens circuit- breakers or with
•Wiring for electronics supply as well as load power supply to I/O modules
•Wiring of
Consideration of Ex(i)-specific requirements
•The construction of the system and I/O units permits a cabinet design which satisfies the
•Uniform installation and replacement for all I/O modules from the ET 200M range, including Ex(i) modules (plug connection for load power supply above the modules).
Design guidelines
•The SIMATIC
Preparation of quotation, consulting and ordering
•Siemens AG
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