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ManualsBrandsSiemens ManualsBuilding automationDesigo Building Automation System 6.2 - Technical Principles

Table Of Contents

1 Cyber security disclaimer
2 Preconditions of this document
3 System overview
- 3.1 Management level
- 3.2 Automation level
- 3.3 Room automation
- 3.4 Field level
- 3.5 Desigo Open
- 3.6 Workflow and tools
- 3.7 Topologies
- 3.8 Communication principles
- 3.9 Data maintenance
- 3.10 Views
4 Desigo workflow, tools and programming
- 4.1 Coverage of the technical process
- 4.2 Coverage of the system
- 4.3 Main tasks
- 4.4 Tools for different roles
- 4.5 Working with libraries
- 4.6 Working in parallel and subcontracting
- 4.7 Workflow for primary systems
- 4.8 Workflow for room automation classic
- 4.9 Workflow for Desigo room automation
- 4.10 Desigo Configuration Module (DCM)
- 4.11 Desigo Xworks Plus (XWP)
- 4.12 Desigo Automation Building Tool (ABT)
- 4.13 Programming in D-MAP
5 Control concept
- 5.1 Control concept and control blocks
- 5.2 Local control design
- 5.3 Superposed plant controls
- 5.4 Closed-loop control strategy
- 5.5 Desigo room automation
6 Technical view
- 6.1 Standard plant structures
- 6.2 Technical text labels
7 Global objects and functions
- 7.1 Ensuring data consistency
- 7.2 Roles in the system
- 7.3 Life check
- 7.4 Time synchronization
- 7.5 Examples of global objects
8 Events and COV reporting
- 8.1 Sources and causes of system events
- 8.2 Routing system events
- 8.3 Sources and causes of COVs
- 8.4 COV reporting
9 Alarm management
- 9.1 Alarm sources
- 9.2 Alarm example
- 9.3 Effects of BACnet properties on alarm response
- 9.4 Alarm response of the function blocks
- 9.5 Alarm functions
- 9.6 Alarm management by notification class
- 9.7 Alarm routing over the network
- 9.8 Alarm queuing
- 9.9 Common alarms
- 9.10 Alarm suppression
- 9.11 Alarm message texts
10 Calendars and schedulers
- 10.1 Schedule
- 10.2 Calendar
- 10.3 Wildcards
- 10.4 Alarm messages
11 Trending
- 11.1 Trend functions
- 11.2 Editing parameters
- 11.3 Processing trend data in Desigo CC
12 Reports
13 Data storage
- 13.1 Data categories
- 13.2 Program data
- 13.3 Libraries
- 13.4 Project data
- 13.5 Plant data
- 13.6 Data transfer processes
- 13.7 Texts
14 Network architecture
- 14.1 BACnet architecture (MLN & ALN)
- 14.2 LonWorks architecture (ALN)
- 14.3 KNX architecture (ALN)
- 14.4 KNX PL-Link architecture (FLN)
- 14.5 DALI architecture (FLN)
15 Remote access
- 15.1 Remote access methods
- 15.2 Choosing a suitable access technology
- 15.3 Technical details
16 Management platform
- 16.1 User functions
- 16.2 Main components
- 16.3 Access and security
- 16.4 Event management
- 16.5 Installation, setup and engineering
- 16.6 Graphics libraries
- 16.7 Graphics engineering
- 16.8 Virtual environment
17 Desigo Control Point
- 17.1 Functions
18 Automation stations
- 18.1 Device object
- 18.2 Device info object
- 18.3 Error sources and monitoring functions
- 18.4 Operating states
- 18.5 Data storage
19 Logical I/O blocks
- 19.1 General functions
- 19.2 Input blocks
- 19.3 Output blocks
- 19.4 Value objects
- 19.5 Value objects for operation
- 19.6 Addressing the I/O blocks
- 19.7 Discipline I/Os
- 19.8 Reliability table
- 19.9 Slope [Slpe] and Intercept [Icpt]
- 19.10 Addressing entries for PXC…-U, PTM and P-Bus
20 Room automation
- 20.1 Desigo room automation
- 20.2 Desigo RXB
21 Desigo Open
- 21.1 Integration on management level
- 21.2 Integration on automation level
- 21.3 Integration on field level
- 21.4 Integration on room level
22 System configuration
- 22.1 Technical limits and limit values
- 22.2 Maximum number of elements in a network area
- 22.3 Desigo room automation system function group limits
- 22.4 Devices
- 22.5 Applications
  - 22.5.1 Peak Demand Limiting (PDL)
23 Compatibility
- 23.1 Desigo version compatibility definition
- 23.2 Desigo system compatibility basics
- 23.3 Desigo Control Point
- 23.4 Upgrading from Desigo V6.2 Update (or Update 2) to V6.2 Update 3
- 23.5 Siemens WEoF clients
- 23.6 Migration compatibility
- 23.7 Hardware requirements of Desigo software products
24 Desigo PXC4 and PXC5
25 Compatibility of Desigo V6.2 Update 3 with PXC4 and PXC5

Control concept

Superposed plant controls

CM110664en_07 75 | 351

block is placed before plant control as illustrated in the following figure. All potential influences are

interconnected, prioritized by importance on the block and the corresponding required plant operating

mode is determined.

Example:

● A fire detector as a high priority (P04) and requires the plant operating mode EmergOff.

● The smoke extraction switch has the highest priority (P01) and demands plant operating mode smoke

extraction.

● The scheduler has a low priority (P11) and demands plant operating modes Stage 1, Stage 2 and Off.

The output [Val] for ENSEL_MS now supplies the CMD_CTL the resulting plant operating mode for

additional processing. It is important that the multistate enumerations for both blocks ENSEL_MS and

CMD_CTL are the same. The multistate values are not text, but rather numbers based.

Superposed command control CMD_CTL

The command control CMD_CTL block is used primarily for the sequence control in the ventilation plants.

The block makes it possible to sequentially switch on and off the aggregates. As it is implemented in a very

general and flexible way, other fields of application are also conceivable, e.g., for refrigeration plants.