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Home Automation
RMZ790
Basic documentation
Siemens RMZ790 Basic Documentation
Knx bus communications
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Contents
Table of Contents
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Table of Contents
Table of Contents
1 KNX and Synco
General Overview
Definition of Terms
Device Range
Collective Terms for the Device Types
Product Markings on Synco Bus Devices
The KNX Network
Full-Scale KNX Network
Network Address
Device Address
Area/Line Couplers and IP Router
2 Engineering Notes
Network Design
Design Engineering Procedure
Number of Bus Devices Per Line, Area and Network
Bus Load Number E
Bus Power Supply
Distributed Bus Power
Power Consumption of Bus Devices
Central Bus Power Supply
Bus Topologies
Distances and Cable Lengths
3 Commissioning Notes
Points to Check Prior to Commissioning
Commissioning with RMZ Operator Units
Start Commissioning, Plant Mode "Off
Finish Commissioning, Plant Mode "Auto
4 Device Address and Device Name
Read Area, Line and Device Address
Assign Device Names
Set Device Address with RMZ790 and RMZ791 Operator Units
5 Device Addresses Via ACS
Service Tool OCI700.1 and ACS790 Software
Overview
6 Basic Communication Settings
Distributed Bus Power
Clock Time Operation
Set Time Slave Remotely
Remote Reset of Fault
7 Communication Via Zone Addresses
General Notes on Zones
Synco Zoning
Communication of Process Values
Geographical Zone (Apartment)
Default Value
LTE Reception and Transmission Zones
Address Zones with RMZ Operator Units
QAW740 Room Unit
8 Large Plants
Engineering and Commissioning
Network Topologies
IP Router as Coupler to IP Network
LTE Filter Table for Couplers and IP Routers
Filter Settings
Predefined LTE Filter Table
Filtering, Zone Addresses, Communication Areas
LTE Telegrams Via Couplers and IP Routers
System Time, Alarms, and Remote Time Adjustment
Engineering Large Plants
9 Appendix
Faults and Errors
Fault Status Message Bus
Communication Error
Heating/Cooling Changeover
Changeover Via Digital Input
Changeover Via Analog Input
Changeover Based on Calendar
H/C Changeover Relay and Fault Status Messages
Room Control Combination Function
Application Examples
Application with Zones
Additional Zones in the RXB/RXL Room Controller
Supply Chains
Data Exchange in LTE-Mode
Update Process Values
Lightning and Overvoltage Protection, EMC
Lightning Protection
Overvoltage Protection
Overvoltages in Loops
EMC Protection Management
Index
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General Overview
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Knx and Synco
3
Faults and Errors
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Synco™
KNX bus communications
Device range Synco 700, Synco living,
RXB/RXL, RDG, RDF, RDU
Basic documentation
Edition 3.0
CE1P3127en
Building Technologies
2013-04-08
For internal use only
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Summarization of Contents
Synco TM KNX Bus Communications - Overview
Chapter 1: KNX and Synco
General Overview of KNX and Synco
Provides an introduction to Synco and the KNX network, including its aims and applications.
Definition of Terms
Explains key terms like KNX bus, bus topologies, bus cable, bus access method, and LTE-Mode.
Chapter 1.2: Synco Device Range
Synco Device Range Overview
Lists Synco 700, Synco living, RXB/RXL, and RDG/RDF/RDU devices with KNX interfaces.
Collective Device Type Terms
Groups devices into collective terms like Synco 700 RM..., RXB/RXL room controllers, and Synco bus devices.
Product Markings on Synco Bus Devices
Explains the meaning of product markings such as KNX Logo, TP1, and EE.
Chapter 1.3: The KNX Network
Full-Scale KNX Network Overview
Describes the three-level structure of a full-scale KNX network, including backbone, main lines, and lines.
KNX Network Address Structure
Explains the syntax and components of a KNX network address (Area.Line.Device).
KNX Device Addressing
Details device addressing, including planning, reserved addresses, and factory-set addresses.
Chapter 1.4: Area-Line Couplers and IP Routers
Chapter 2: Engineering Notes
Network Design Process
Outlines the systematic procedure for designing a KNX network, from situation assessment to wiring diagrams.
Bus Device Limits per Line, Area, and Network
Specifies the maximum number of bus devices allowed on a line, in an area, and in a full KNX network.
Bus Load Number E (E-Characteristic)
Explains the concept of bus load number E and its application to average data traffic on the bus.
Bus Power Supply Options
Details the two main options for supplying power to the KNX bus: Distributed and Central.
Distributed Bus Power Supply (DPSU)
Describes the concept and usage of distributed bus power supply units (DPSU) for KNX networks.
Bus Device Power Consumption
Lists the power consumption values for various Synco devices and other components for KNX bus.
Central Bus Power Supply (PSU)
Explains the use of central bus power supply units (PSU) and recommended Siemens models.
KNX Bus Topologies
Details allowed bus topologies (Tree, Line, Star) and their advantages, with connection variants.
Bus Cable Distances and Lengths
Provides guidelines on maximum distances and cable lengths for KNX networks with DPSU and PSU.
Chapter 3: Commissioning Notes
Pre-Commissioning Checks
Lists essential checks before starting the commissioning process, including voltage and plant readiness.
Commissioning with RMZ Operator Units
Describes the efficient commissioning of Synco 700 RM controllers using RMZ790/RMZ791 operator units.
Starting Commissioning (Plant Mode Off)
Details how to start the commissioning process by setting the plant mode to "Off" for safety.
Finishing Commissioning (Plant Mode Auto)
Explains how to complete commissioning by resetting the plant mode to "Auto" after basic settings are done.
Chapter 4: Device Address and Device Name
RM... Controllers Configuration
Focuses on accessing and setting device addresses and names for RM... controllers using operator units.
Reading KNX Addresses for RM Controllers
Guides on how to read the factory-set Area, Line, and Device addresses for RM... controllers.
Assigning Device Names to RM Controllers
Explains how to assign individual device names to RM... controllers using RMZ790/RMZ791 units.
Setting Device Addresses with RMZ Operator Units
Details the step-by-step process of setting device addresses using RMZ790/RMZ791 operator units.
Chapter 5: Device Addresses via ACS Software
OCI700.1 Service Tool and ACS790 Software
Introduces the OCI700.1 service tool and ACS790 software for commissioning and diagnostics.
Chapter 6: Basic Communication Settings for RM Controllers
Distributed Bus Power Configuration
Explains how to configure the distributed bus power supply setting for RM... controllers.
Clock Time Operation Modes
Details the clock time operation modes (Master, Slave, Autonomous) for RM... controllers.
Remote Time Slave Setting
Describes how to configure a time slave to receive remote time settings from a time master.
Remote Fault Reset Function
Explains the function for remotely resetting Synco RM... controller faults via the KNX bus.
Chapter 7: Communication via Zone Addresses
General Notes on Synco Zoning
Introduces Synco zoning, listing various zone types and their address ranges for different devices.
Synco Zoning Overview
Details the types of zones used in Synco systems and the corresponding zone address ranges for devices.
Process Value Communication in LTE-Mode
Explains how process values are exchanged between devices in a zone using LTE-Mode and zone addresses.
Geographical Zone (Apartment) Concept
Defines the "Geographical zone (apartment)" and its usage with RM..., RXB/RXL, etc. controllers.
Default Value "----" in Series B Devices
Explains the meaning of the default "---" value for Geographical zone in series B controllers.
LTE Reception and Transmission Zones
Describes the use of universal inputs/outputs for data exchange via LTE reception and transmission zones.
Setting Zone Addresses with RMZ Units
Details how to set zone addresses for RM... controllers and QAW740 room units using RMZ operator units.
RM... Controller Zone Addressing
Explains how to set zone addresses for RM... controllers via the "Room" operating page.
QAW740 Room Unit Zone Addressing
Describes how to set the "Geographical zone (apartment)" for the QAW740 room unit using its front controls.
Chapter 8: Engineering and Commissioning Large Plants
Engineering and Commissioning Large Plants
Provides key points to consider during engineering and commissioning of large-scale KNX projects.
Network Topologies for Large Plants
Illustrates network topologies suitable for large plants, emphasizing area/line couplers.
IP Router for IP Network Coupling
Explains the use of IP routers to connect KNX networks to IP networks, including rules and IP address assignment.
LTE Filter Settings Overview
Outlines the available filter settings (Normal, Route all, Block all) for LTE telegrams.
Predefined LTE Filter Table Details
Presents the predefined LTE filter table showing which zone addresses are blocked or routed.
Filtering, Zone Addresses, and Communication Areas
Illustrates the relationship between filter settings, zone addresses, and communication areas for LTE telegrams.
LTE Telegrams via Couplers and IP Routers
Provides recommendations for configuring devices with LTE telegrams via couplers and IP routers.
System Time, Alarms, and Remote Time Adjustment
Discusses how system time, alarms, and remote time adjustments are handled via LTE-Mode.
Engineering Large Plants with ACS
Describes the use of ACS790 software for engineering large plants, including addressing and IP settings.
Chapter 9: Appendix and Troubleshooting
Faults and Errors in KNX Communication
Covers communication errors and general faults, including their types and examples.
Fault Status Message Bus Handling
Explains how fault status messages are distributed over the KNX bus and displayed.
Communication Error Codes and Messages
Lists specific fault messages and their associated errors related to communication over the KNX bus.
Heating/Cooling Changeover Function
Explains the H/C changeover function in RMU7x0B controllers and its programming methods.
H/C Changeover via Digital Input
Details how to configure heating/cooling changeover using a digital input signal.
H/C Changeover via Analog Input
Describes how to configure heating/cooling changeover using an analog input signal, such as temperature.
H/C Changeover Based on Calendar
Explains how to configure heating/cooling changeover based on calendar dates and times.
H/C Changeover Relay and Fault Messages
Covers configuration of H/C changeover relay output and associated fault status messages.
Room Control Combination Function
Explains the room control combination function for linking controllers for shared operation.
Room Control Combination Examples
Provides examples of using the room control combination function, like radiator and floor heating.
Applying Zones in Building Management
Illustrates how to divide a commercial building into operating zones for system control.
Additional Zones in RXB/RXL Room Controllers
Explains how to use "Geographical zone (room)" and "(subzone)" for advanced addressing in RXB/RXL controllers.
Supply Chain Concepts in HVAC
Explains the structure and logical elements of supply chains in HVAC applications.
Data Exchange in LTE-Mode
Describes how data points and process values are exchanged between Synco devices using LTE-Mode.
Updating Process Values (e.g., Temperature)
Details how process values are updated, including COV, minimum repetition time, and heartbeats.
Lightning Protection Measures
Covers external and internal lightning protection measures, including equipotential bonding.
Overvoltage Protection (Surge Arresters)
Explains the role of surge arresters as secondary protection for mains and KNX networks.
Avoiding Overvoltages in Loops
Discusses how to avoid loops that cause electromagnetic interference and surges.
EMC Protection Management
Highlights the need for EMC protection management in buildings like computer centers.
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