Control Module Type (Cmt) - Siemens SIMATIC PCS 7 Configuration Manual

Configuring AS functions
8.2 Creating process tags
● Arrange the blocks on the CFC sheets of the process tag type in a clear manner,
for example, always arrange them from left top to right bottom.
● Create variants of process tag types. If a valve needs two interlock blocks, for example,
create a new process tag type for it.
● Test each process tag type before using it in the project.
Note
Information on creating CFCs and process tag types can be found in the "SIMATIC Process
Control System PCS 7 Engineering System"
en/view/109485969) manual.
All process tag types are then to be saved in the master data library and can be maintained
and edited there as needed.
The process tags (replicas) in the project result from the process tag types of the master data
library - either by manual copying or using the Import/Export Assistant
(see also section: Import/Export Assistant (IEA) (Page 176)).
8.2.2

Control module type (CMT)

Introduction
Compared with a process tag type a control module type (CMT) has the following advantages
for bulk engineering with PCS 7 Advanced Engineering:
● Instance-specific changes to the instance of the control module are not lost during
synchronization of type and instance.
● It is possible to create different instances from a control module type. Optional blocks are
configured for this in the CMT. Before creating the instances a user can determine whether
the optional blocks are activated in the relevant instance in the Advanced Engineering
System. The "Technological I/Os" view is available for this in the CFC Editor.
The advantages for bulk engineering in PCS 7 cannot be exploited without PCS 7 Advanced
Engineering as there is no option for creating CMTs in bulk in PCS 7.
The application example "Control Module (CM) technology – efficient engineering in SIMATIC
PCS 7" describes how to work with the control module technology in the PCS 7 environment
based on individual technological components and typical applications. These include:
● Structure of a CMT in comparison to process tag type (PTT)
● Structure of the interfaces
● Generation of a CMT with versions
● Configuration of a motor staging with CMT
● Function extensions and central type update
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(https://support.industry.siemens.com/cs/ww/
Compendium Part A - Configuration Guidelines (V8.2)
Configuration Manual, 08/2016, A5E38166869-AA