Siemens Synco 700 Series Basic Documentation
  1. Manuals
  2. Brands
  3. Siemens Manuals
  4. Controller
  5. Synco 700 Series
  6. Basic documentation

Siemens Synco 700 Series Basic Documentation

Communication via the knx bus
Hide thumbs Also See for Synco 700 Series:
Table of Contents

Quick Links

™
Synco
Communication via the KNX bus
For Synco 700, 900 and RXB/RXL
Basic Documentation
Edition 2.0
Building Technologies
CE1P3127en
HVAC Products
30.08.2007
Table of Contents
loading

Related Manuals for Siemens Synco 700 Series

Summary of Contents for Siemens Synco 700 Series

  • Page 1 ™ Synco Communication via the KNX bus For Synco 700, 900 and RXB/RXL Basic Documentation Edition 2.0 Building Technologies CE1P3127en HVAC Products 30.08.2007...
  • Page 2 Siemens Schweiz AG © 2003-2007 Siemens Switzerland Ltd Building Technologies Group Subject to change International Headquarters HVAC Products Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.siemens.com/buildingtechnologies 2/120 Building Technologies Basis documentation: Communication via the KNX bus...

  • Page 3: Table Of Contents

    Contents KNX (Konnex) and Synco................7 General overview ..................7 1.1.1 Definition of terms ..................8 Synco 700, 900, RXB/RXL range ............10 1.2.1 Collective terms for the device types ............11 1.2.2 Product markings on Synco bus devices..........11 The KNX network ..................12 1.3.1 Full-scale KNX network................12 1.3.2...
  • Page 4 5.1.5 Addressing devices with the OCI700.1 service tool.........37 RM… controller device address ...............38 5.2.1 Assigning addresses manually..............38 5.2.2 Assigning addresses automatically............39 5.2.3 Assigning addresses in programming mode..........40 5.2.4 Addressing via the ID number..............41 Device address for the OZW771.xx central communication units ...42 5.3.1 Other addressing options, OZW771.xx............43 5.3.2...
  • Page 5 Large plants....................77 Engineering and commissioning ..............77 8.1.1 Network topologies...................78 8.1.2 IP router as a coupler to the IP network...........81 LTE filter table for couplers and IP routers..........84 8.2.1 Filter settings....................84 8.2.2 Predefined LTE filter table................85 8.2.3 Filtering, zone addresses, communication areas ........86 8.2.4 LTE telegrams via couplers and IP routers ..........87 8.2.5...
  • Page 6 Blank page 6/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Contents 30.08.2007...

  • Page 7: Knx (Konnex) And Synco

    KNX (Konnex) and Synco General overview This document contains: About this document • Section 1 Introductory information about Synco and the KNX network • Section 2 Notes on engineering • Section 3 Notes on commissioning • Sections 4 to 7 Device address, device name and addressing via ACS, special features of KNX addressing and communication in LTE mode.

  • Page 8: Definition Of Terms

    1.1.1 Definition of terms The KNX bus used with Synco is referred to as "KNX TP1". A full-scale KNX KNX bus network is a three-level structure consisting of one area line, from which 15 main lines branch off. A further 15 lines can branch off from each main line. A network consisting of main lines and lines requires area and line couplers.
  • Page 9 S-mode is characterized by the assignment of (logical) group addresses to S-mode individual data points to create the communications bindings for the exchange of process values. Devices bearing the same group address exchange process values with each other. The group addresses can be assigned to the group objects (S-mode data points) Group addresses with the ETS engineering and commissioning tool (ETS = Engineering Tool Software).

  • Page 10: Synco 700, 900, Rxb/Rxl Range

    Synco 700, 900, RXB/RXL range The table below lists those devices in the Synco 700, 900 and RXB/RXL ranges Introduction which have a TP1 (wired) KNX interface. These devices have a network address and can communicate via the KNX bus in LTE mode.

  • Page 11: Collective Terms For The Device Types

    1.2.1 Collective terms for the device types In this document, the devices on in the table on the previous page may be referred to collectively as follows. The term "Synco 700 type RM… controllers", or "RM… controllers" for short, refers Synco 700 type collectively to the following types: RM…controllers...

  • Page 12: The Knx Network

    The KNX network 1.3.1 Full-scale KNX network A full Konnex network is structured on three levels. It consists of: KNX network, • Area line three-level structure Area 0 (backbone line) • Main lines 1...15 Areas 1…15 • Lines 1.1...15.15 Area 15 15.0.0 Main line 15 15.1.0...

  • Page 13: Network Address

    Area line 0 The area line is the backbone of the network. The subnetwork address (area line) is 0.0 (zero.zero). 15 area couplers (Ac) can be connected to the area line, in addition to bus devices (not shown), whose number is determined by subtracting the number of area couplers from 64.

  • Page 14: Device Address

    1.3.3 Device address As described above, the network address consists of a combination of the area, Device identification line and device address, for example 0.2.10, where 0 stands for the area, 2 for the line and 10 for the device address. 0.2.150 0.2.254 0.2.252...

  • Page 15: Area/Line Couplers And Ip Router

    For further information refer to the product description and description of functions (enclosed with the device) or under: www.automation.siemens.com/et/gamma/ For large plants, Siemens IP routers from Version R4 should be used (these are Note stamped "R4") as only these IP routers contain the LTE filter table (see section 8.2).
  • Page 16 Blank page 16/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products KNX (Konnex) and Synco 30.08.2007...

  • Page 17: Engineering Notes

    Engineering notes Designing the network 2.1.1 Design engineering procedure For design engineering refer also to the information in data sheet N3127. Design engineering flow chart Step Activity Objective • Accurate site plan with location Assess the situation Project data of the buildings and layout of rooms •...

  • Page 18: Number Of Bus Devices Per Line, Area And Network

    2.1.2 Number of bus devices per line, area and network Up to 64 bus devices can be installed on one line (including a main line and area 64 bus devices line 0). There are no restrictions relating to the type mix. on one line The Synco 700 type RMZ78x expansion modules, the RMZ790 and RMZ791 Notes...

  • Page 19: Bus Power Supply

    Bus power supply 2.2.1 Decentral bus power supply A bus power supply is always required for bus communications. There are two Introduction options: • Decentral bus power supply DPSU = Decentral Power Supply Unit • Central bus power supply = Power Supply Unit In any one line (including a main line) either the DPSU or PSU may be used.

  • Page 20: Power Consumption Of The Bus Devices

    • IP router N146 10 mA From bus The Siemens IP router N146 consumes 10 mA from the KNX bus despite the additional external auxiliary voltage AC/DC 24 V. Power consumption with auxiliary voltage: 25 mA at DC 24 V, max. 800 mW.

  • Page 21: Central Bus Power Supply

    • Operating voltage AC 120…230 V, 50…60 Hz • Bus voltage output DC 29 V (21…30 V, with choke) For KNX networks with IP routers, the following Siemens power supply unit is recommended. Order code: • 5WG1 125-1AB11, short code N125/21...

  • Page 22: Bus Topologies

    Bus topologies Permissible bus topologies are: tree, line and star topologies. These topologies can Advantage: be mixed as needed. However, ring topologies are not permissible. Tree topology The tree topology is advantageous when creating a large network. Tree topology (with stub lines) Line topology (with loops) KNX TP1 KNX TP1...

  • Page 23: Distances And Cable Lengths

    2.3.1 Distances and cable lengths The details of distances and cable lengths in a network are designed for bus cables Bus cable: KNX specified specified by KNX. In a KNX network with a "decentral bus power supply unit, DPSU" (see section Network with DPSU 2.2.1) the distances between devices depend on the number of devices with a DPSU.
  • Page 24 Example 1 Distance between bus devices max. 700 m. 200 m Not allowed: N1 to N4 = 900 m N2 to N4 = 800 m 400 m 100 m 150 m 250 m 100 m 100 m 100 m Distance between bus device and bus supply max.

  • Page 25: Commissioning Notes

    Commissioning notes Points to check prior to commissioning The following points must be checked before commissioning starts: General points to check • Check that bus devices and field devices are installed • Check the wiring against the plant wiring diagram •...

  • Page 26: Commissioning With The Rmz Operator Units

    Commissioning with the RMZ operator units The Synco 700 type RM controllers can be commissioned with operator units Introduction RMZ790 and RMZ791 (but not RMZ792). This is a highly efficient method for small plants, as no commissioning tools are required. When commissioning larger systems with area/line couplers, IP routers and Note RXB/RXL room controllers, the OCI700.1 service tool/ACS7…...
  • Page 27 Plant operation = Off Plant operation Preselection: State: Cause: Plant op. selector Select "Off" on the "Preselection" line and confirm by pressing the OK knob. Action Press ESC to return to the "Main menu" page. Return to main menu Main menu Commissioning...

  • Page 28: Terminating Commissioning, Plant Mode "Auto

    Main menu > Commissioning > Communication > Basic settings Basic settings Basic settings Device address: Dec bus power supp: Clock time op: Master Rem set clock slave: Before modifiable values are changed for the first time, the operating lines show Notes the factory-set values, e.g.

  • Page 29: Device Address And Device Name

    Device address and device name RM… controllers The RMZ790 and RMZ791 operator units are identical for the purpose of access to Introduction the RM… controllers and in terms of their application and functions. The RMZ792 bus operator unit, which has the same mechanical design as the RMZ791, is used for remote access to the Synco 700 bus devices and in terms of application and functions it differs substantially from the RMZ790 and RMZ791 operator units.

  • Page 30: Assigning Device Names

    Communication Communication Basic settings… Room… Holiday/Special days Distribution zone… Basic settings Basic settings Area: Line: Device address: Dec bus power supp: With access at the Service level, the setting values on the "Basic settings" page Notes are read-only values. This is indicated by the fact that the highlight bar does not cover the whole operating line, i.e.
  • Page 31 Assigning device We recommend that the device name be defined at the design engineering stage. To assign a name, select the Service level and the following path: names Main menu > Settings > Texts > Texts Dv name: Write the text, via the "Texts" page and the line "Dv. Name" (= Device name): Action •...

  • Page 32: Setting Device Address With Rmz790 And Rmz791 Operator Units

    Setting device address with RMZ790 and RMZ791 operator units Synco bus devices with factory-set device address 255 do not transmit process Introduction values. However, these devices can be operated, and the device address can be set. The address range is 1…253 excluding 150, which is reserved for the OZW775 central communication unit.

  • Page 33: Device Addresses Via Acs

    Device addresses via ACS Service tool OCI700.1 and ACS7… software 5.1.1 Overview The OCI700.1 service tool is used for commissioning and diagnostics for devices in Service tool OCI700.1 the Synco, SIGMAGYR and ALBATROS ranges, and for the operation of plant via the KNX bus or Local Process Bus (LPB) (see data sheet N5655).

  • Page 34: New Plant

    OCI700 service interface are included in the device list. Line couplers are not included in the list. • All lines All devices in the KNX network, including area/line couplers and Siemens IP routers (see section 1.4) are included in the device list. 34/120...

  • Page 35: Establishing A Connection

    5.1.3 Establishing a connection If "Refresh device list?" is answered with "Yes", the connection is established automatically, the device list is read and the reference data points are refreshed in the devices. Communication: Connected Update the device list with 5.1.4 Edit device list The following shows how to set a device address via ACS Service.
  • Page 36 Edit device list The "Edit device list" dialog box displays the device list with the existing devices. Description of the columns in the "Edit device list" dialog box. Column Description. Device Name Device names can be entered together with the network address. If no device name is entered, the display reads: Device address n Network address Area.Line.Device Address...

  • Page 37: Addressing Devices With The Oci700.1 Service Tool

    5.1.5 Addressing devices with the OCI700.1 service tool The Synco 700 bus devices, Synco 900 type QAX910 central apartment unit, the OZW775 central communication unit and the RXB/RXL room controllers are all set with device address 255 when they leave the factory. Exception: The OZW775 central communication unit is factory-set with device address 150.

  • Page 38: Assigning Addresses Manually

    RM… controller device address The Synco 700 devices are factory-set with device address 255. This address must Introduction be changed to allow communication via the KNX bus. The address can be modified in different ways with ACS Service (see further below). For information about the various RM…...

  • Page 39: Assigning Addresses Automatically

    Device Name A device name can be assigned to each device at the same time as the device address. • Enter the device address and/or device name and confirm by clicking Write button (see steps 1 to 4 above). 5.2.2 Assigning addresses automatically Addresses can be assigned automatically to devices in the address list which are highlighted in red because of an address problem or conflict.

  • Page 40: Assigning Addresses In Programming Mode

    5.2.3 Assigning addresses in programming mode "Address assignment in programming mode" is suitable for Synco 700 type RM… controllers, RXB/RXL room controllers, OZW77x central communication units and area/line couplers and IP routers. Refer to the individual product documentation for details of how to set a device to Setting devices to programming mode on site.

  • Page 41: Addressing Via The Id Number

    5.2.4 Addressing via the ID number If the devices to be addressed are a long way from the PC/laptop running ACS Service (e.g. devices in the basement, PC/laptop on KNX bus in control panel on first floor) then addressing via individual ID numbers is recommended. 1.

  • Page 42: Device Address For The Ozw771.Xx Central Communication Units

    Device address for the OZW771.xx central communication units In the designation OZW771.xx (where xx = 4, 10 or 64), xx indicates the number of Introduction bus devices that can be connected to that central communication unit. The commissioning procedure is described in the installation instructions (G3117, Note packed with the device).

  • Page 43: Other Addressing Options, Ozw771.Xx

    5.3.1 Other addressing options, OZW771.xx Pressing the "Install" button (top right) for at least 6 seconds initiates the following "Install" button functions in the central communication unit: • Creates a device list • Finds devices • Identify device address automatically (network address) The device, area and line address are adopted.

  • Page 44: Device Address For The Ozw775 Central Communication Unit

    Device address for the OZW775 central communication unit The OZW775 central communication unit is factory-set with device address 150. Introduction This address enables the central communication unit to communicate via the KNX bus. We do not recommend changing device address 150. The procedure for commissioning is described in the installation instructions, sheet Note G5663 (enclosed in the device packaging).

  • Page 45: Device Address For The Qax910 Central Apartment Unit

    Device address for the QAX910 central apartment unit The QAX910 central apartment unit device address can be set on the associated Introduction operating page (display) and via the programming mode of ACS Service. The procedure for commissioning is described in the mounting and commissioning Note instructions, sheet C2707 (enclosed with every device).
  • Page 46 Operating pages The device address can be set manually via "Device address" line on the "Basic settings" operating page. The path for this setting is: (display) Main menu > Commissioning > Bus communication Commissioning Basic configuration… RF connections… Device list… Bus communication…...
  • Page 47 1. Set the central apartment unit locally to "Programming mode = On" via the Procedure in programming operating page "Basic setting" and the line "Programming mode" (see previous mode page) 2. In ACS Service select Plant > Edit device list… to open the "Edit device list" dialog Programming mode…...

  • Page 48: Device Address For The Rxb/Rxl Room Controllers

    Device address for the RXB/RXL room controllers The RXB and RXL room controllers have the same application set. Both types can Introduction communicate via KNX in LTE mode (the RXB also communicates in S-mode). The main differences between the RXB and RXL room controllers are the operating voltage and the KNX certification: •...

  • Page 49: Rxb/Rxl Device Address With Qax34.3 Room Unit

    5.6.1 RXB/RXL device address with QAX34.3 room unit The QAX34.3 room unit covers all the standard room unit functions. The room unit can also be used to set the RXB/RXL room controller parameters via PPS2. The QAX34.3 room unit is not suitable for direct connection to the KNX bus. Notes The tool socket (RJ45) on the RXB/RXL room controllers serves as a PPS2 interface and a bus interface (CE+ und CE-).
  • Page 50 Parameter mode (continued) Press +/– to find a new parameter number and confirm with < (Enter). The value concerned is then displayed. Press +/– to change the value and confirm with < (Enter). Press > (Esc) to return to the parameter number level without making any changes.

  • Page 51: Device Address For The Qaw740 Room Unit

    Device address for the QAW740 room unit The QAW740 room unit is the only room unit in the Synco range that can be Introduction connected directly to the KNX bus (connections CE+ and CE-). The QAW740 room unit does not power the bus. Bus power supply Decentral or central bus power supply is required for communication via the KNX bus (see section 2.2).
  • Page 52 1. In ACS Service select Plant > Edit device list… to open the "Edit device list" dialog Assigning addresses box (see section 5.2.1). manually 2. Select the room unit with the left mouse button and click the button Manually… marked to open the "Address assignment"...

  • Page 53: Device Address For Rmz792 Bus Operator Unit

    Device address for RMZ792 bus operator unit The RMZ792 bus operator unit is used for remote operation of up to 150 Synco Introduction 700 bus devices including OZW77x central communication units and RXB/RXL room controllers in a KNX network. Access to the bus devices is via the device list. There is no access to Synco 900 type QAX910 central apartment units, area/line couplers, IP routers or third-party devices.
  • Page 54 Turn the knob to select the "Search address" line. Then press the knob to initiate Finding the device the search for the next unused addressed. address automatically A successful search is indicated by the word "Found". The line and area are adopted by the super-ordinate couplers (if these exist).
  • Page 55 Connecting the As shown in the drawing below, the RMZ792 bus operator unit is connected directly to the KNX bus via a bus socket or indirectly via the tool socket on a bus operator unit controller. RMZ792 OZW77x Area 1 KNX TP1 Line coupler 1 Line coupler 2...

  • Page 56: Addressing The Couplers

    ("learning button A5" is a term in the product and applications description enclosed Siemens couplers with the Siemens line/area coupler 5WG1 140). Press the key again to revert to normal operation. LED A4 (above the "learning button" A5) indicates whether the coupler is in...
  • Page 57 "learning button". The red LED A4 lights up. (For a definition of "learning button A4" and "LED A5" refer to the product and function description enclosed with the Siemens couplers). 2. In ACS Service select Plant > Edit device list… to open the "Edit device list"...

  • Page 58: Area Couplers

    7. In ACS Service click Plant > Refresh device list to initiate the automatic adoption of the new line address 11 by the Synco devices. 8. In ACS Service select Plant > Edit device list… to open the "Edit device list" dialog box.

  • Page 59: 5.10 Addressing The Ip Router

    Auxiliary voltage voltage must be derived from a supply without a choke. We recommend the Siemens power supply unit which has separate outputs for the DC 29 V bus power and the DC 24 V auxiliary voltage (see section 2.2.3).
  • Page 60 Blank page 60/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Device addresses via ACS 30.08.2007...

  • Page 61: Basic Communication Settings

    Basic communication settings RM… controllers 6.1.1 Decentral bus power The type of bus power supply is set on the "Basic settings" operating page, on the "Decentral bus power supply" line. Main menu > Commissioning > Communication > Basic settings Basic settings Device address: Dec bus power supp: Clock time op:...

  • Page 62: Setting A Time Slave Remotely

    Clock time op.: Auto The RM… controller does not receive or transmit the time Settings or date (The device has its own time and date). Clock time op.: Slave The RM… controller receives the time and date from the time master. Clock time op.: Master The RM…...
  • Page 63 Settings Rem set clock slave: Yes The time slave transmits the remote time and/or date settings to the time master. The time master transmits the values received to all time slaves (including any remotely adjustable slave(s) Rem set clock slave: No Time slaves with this setting can only receive the time and date from the time master.

  • Page 64: Remote Reset Of Fault

    6.1.4 Remote reset of fault The "Remote reset of fault" function is used to reset the Synco 700 RM… controller faults transmitted over the KNX bus and requiring "Acknowledgement and reset", to be acknowledged (and reset if "Remote reset fault: Yes") with the OCI700.1 service tool, the RMZ792 bus operator unit and the OZW775 central communication unit.

  • Page 65: Basic Settings Via Acs

    Basic settings via ACS The basic settings (see section 6.1.1 ff) can also be modified with the ACS Service Introduction software. After selection of the relevant device, the menu tree has the same structure as the path sequence in the operator units, e.g. for the RMU730 controller: Commissioning >...
  • Page 66 Blank page 66/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Basic communication settings 30.08.2007...

  • Page 67: Communication Via Zone Addresses

    Communication via zone addresses General notes on zones 7.1.1 Synco zoning Zoning in Synco is based on KNX and covers the following zones for Synco 700 Zones and devices devices and RXB/RXL room controllers: Designation Zone Def' Def. address value value range RM...

  • Page 68: Communication Of Process Values

    7.1.2 Communication of process values In LTE-mode (LTE = Logical Tag Extended) the communication bindings between LTE mode data points are created by means of logical tags. This is the equivalent of the zone addresses in Synco. Zone addressing, i.e. the setting of a zone address is also referred to as "binding". A common zone address is all that is necessary for the process values to be Communication of exchanged between the devices in a zone.

  • Page 69: Geographical Zone (Apartment)

    7.1.3 Geographical zone (apartment) The term "Geographical zone (apartment)" is specified by KNX and implies a Definition building divided into geographical (physical) zones. However, in practice it is Geographical zone related to the operating strategy, which is defined as follows: •...

  • Page 70: Default

    7.1.4 Default "----" in series B devices The "Geographical zone (apartment)" represents the room to be controlled. Within Introduction this zone, all process values relevant to the room are transmitted (e.g. room operating mode, room setpoint and measured room value, plus user intervention and other influences).
  • Page 71 In terms of the room operating mode, the "Heating circuit 2" controller operates Notes (continued) autonomously, see "Geogr zone = ----" in the illustration. Only one controller may be the time switch master in any one zone. The setting for the master is "TS slave (apartm) = ----".

  • Page 72: Zone Addressing With The Rmz Operator Units

    Zone addressing with the RMZ operator units 7.2.1 RM… controllers For the Synco 700 type RM… controllers, the zone addresses can be set with the Introduction RMZ790 and RMZ791 operator units. The zone addresses can be set without a commissioning tool, also referred to as "Easy configuration". Access at the Password level takes the user to the operating pages and Setting procedure...

  • Page 73: Qawz740 Room Unit

    Press the knob to confirm the zone address just set. Step 4 RM…controllers Room Geogr. zone (ap.): Time switch op: Autonom TS slave (apart.): RM…B controllers Room Geogr. zone (ap.): TS slave (apart.): ---- Time switch op: Autonom Geographical zone (apartment), RM… controllers RM…...

  • Page 74: Addressing The Zones With Acs

    Addressing the zones with ACS 7.3.1 RM… controllers For the RXB/RXL room controllers and the QAW740 room unit, the zone addresses Introduction can also be set via ACS Service. The use of ACS Service to set the zone addresses is particularly efficient for extensive networks.

  • Page 75: Rxb/Rxl Room Controllers

    7.3.2 RXB/RXL room controllers • In ACS Service Applications > Parameter settings , open the menu tree of the RXB/RXL room controller for which the zone address is to be set. • Double-click the menu line "Communication" to open the operating page, and select the zone for which the address is to be set.
  • Page 76 Blank page 76/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Communication via zone addresses 30.08.2007...

  • Page 77: Large Plants

    Large plants Engineering and commissioning In large plants, the following points must be observed during the design Large plants engineering and commissioning stages. For all lines, the distances and line lengths (see section 2.3.1) must be observed. If Distances and conductor the topology exceeds the prescribed limits, then area/line couplers must be used.

  • Page 78: Network Topologies

    8.1.1 Network topologies Three network topologies are illustrated on the next three pages. Among the points to note are the details of the LTE filter table (see also section 8.2). Example 1 KNX network with area and line couplers ACS alarm pager, SMS, fax 0.2.254 0.2.150...
  • Page 79 KNX network linked via IP router to IP network (area line 0) Example 2 IP network (Area line 0) IP 192.168.10.1/24 IP 192.168.10.1/24 IP 192.168.10.15/24 Ac 1.0.0 Ac 2.0.0 Ac 15.0.0 N146 N146 N146 2.0.254 1.0.1 15.0.1 Service Service RM... RM...
  • Page 80 KNX network with third-party devices in Area 15 Example 3 ACS alarm pager, SMS, fax 0.2.254 0.2.150 0.2.252 Service cable PC with ACS OZW775 RMZ792 RJ45 connector Bus connector socket Bereich 0 Ac 15.0.0 Ac 1.0.0 Ac 2.0.0 N140/13 N140/13 N140/13 1.0.1 2.0.1...

  • Page 81: Ip Router As A Coupler To The Ip Network

    8.1.2 IP router as a coupler to the IP network The router can be connected via to the IP network via Ethernet cable and the 10BaseT interface integral RJ45 socket of the IP router. Cat5 cable IP Network (Area line 0) IP Ac 10BaseT 192.168.10.1...
  • Page 82 Point-to-point With a point-to-point connection the Ethernet cable forms area line 0, irrespective of whether the coupling applies to two areas or lines (see diagram) or one area connection with one line. A crossed Ethernet cable is required for the coupling of two IP routers. Ethernet cable (Area line 0) IP Lc IP Lc...
  • Page 83 IP router as When the selected method of coupling is "IP router as area coupler", two or more KNX areas are linked via an IP network. The IP routers are used to link main lines, area coupler i.e. they must be addressed on the KNX side as area couplers. IP network IP Ac IP Ac...

  • Page 84: Lte Filter Table For Couplers And Ip Routers

    Introduction to filter LTE telegrams, so reducing the amount of data traffic. The valid LTE filter table versions are version R2 and later for the Siemens area/line coupler N140/13, and version R4 and later for Siemens IP router N146. This means that the couplers and IP routers must be stamped R2 and R4 respectively (see section 1.4).

  • Page 85: Predefined Lte Filter Table

    The predefined LTE filter table is available in the Siemens area/line coupler Filter setting N140/13 from Version R2, and in the Siemens IP router N146 from Version R4. "Normal (route)" The filter setting "Normal (route)" either blocks or routes the LTE telegrams from the zones and zone addresses, as shown in the list.

  • Page 86: Filtering, Zone Addresses, Communication Areas

    8.2.3 Filtering, zone addresses, communication areas The diagrams below show the relationship between filter settings, zone addresses and communication areas, based on the zone addresses for distribution zones. Prerequisite: All area/line couplers and IP routers in the network must have the same filter setting.

  • Page 87: Lte Telegrams Via Couplers And Ip Routers

    1...31 8.2.4 LTE telegrams via couplers and IP routers When using Siemens area/line couplers and IP routers in conjunction with Recommendation Synco devices, it is recommended that no more than 15 devices be configured with the same zone (e.g. heat distribution zone) and the same zone address (see the addresses highlighted in green in section 8.2.2).
  • Page 88 Network with The recommendation on the previous page is particularly important in relation to a network with a large number of RX… room controllers. RX… room controllers In a line containing up to 62 RX… room controllers, an RMB795 central control unit is used as a "collector".

  • Page 89: System Time, Alarms And Remote Time Adjustments

    8.2.5 System time, alarms and remote time adjustments The system time (time and date) are communicated in S-mode and are not affected System time by LTE filtering. Alarms and remote time adjustments are transmitted in LTE mode (LTE broadcast Alarms and remote address).

  • Page 90: Engineering Of Large Plants

    Engineering of large plants The ACS7… software is recommended for the engineering of large plants, because Engineering with ACS it can be used to set all the necessary addresses and configuration values. 1. Address the area/line couplers (see section 5.9) and IP routers (see section Addressing 5.10).
  • Page 91 To keep communication to a minimum, the filter setting "Normal (route)" should be Filtering of LTE telegrams retained (default, see section 8.2). The IP routers are factory-set to obtain their IP address from a DHCP server. IP address assignment The IP addresses can also be assigned manually with ACS (see the next two screenshots).
  • Page 92 If the manual assignment of IP addresses is selected (instead of DHCP), the 4-byte IP address, manual IP address can be programmed in ACS. Other IP settings in ACS IP settings • IP routing multicast address • IP subnet mask •...

  • Page 93: Appendix

    Appendix Faults and errors Various events cause faults and errors which then trigger error messages. This document deals only with communication errors (see also the tables on the next page). Communication errors Type of error Examples • Failure • No bus power supply •...

  • Page 94: Communication Errors

    9.1.2 Communication errors The following is a list of errors associated with communication over the KNX bus (see also the listed sections in this document). Failure Fault No. Fault message on Type of failure RMZ79x operator unit 5000 No bus power supply No bus power supply 5001 System time failure...

  • Page 95: Heating / Cooling Changeover

    Heating / cooling changeover The universal RMU7x0B controllers are programmed with the new "H/C changeover" function block, which is used for changeover of the specified "Heating" or "Cooling" mode in 2-pipe systems. H/C changeover The specified "Heating" or "Cooling" mode can be generated in the controller itself, or received as a "Heating/cooling changeover signal"...

  • Page 96: Changeover Via Digital Input

    9.2.1 Changeover via digital input The changeover thermostat in the flow is wired to universal input "x"(configured as Changeover source digital input DI a digital input) of the "H/C changeover" function block in controller 1 (RMU7x0B). The heating/cooling changeover signal transmitted over the KNX bus affects all Changeover signal via controllers (in this case controllers 1 and 2) in the same heating/refrigeration distribution zone, provided all controllers have the same heating/refrigeration zone...

  • Page 97: Changeover Via Analog Input

    9.2.2 Changeover via analog input The outside temperature sensor is wired to universal input "x"(configured as an Changeover source analog input AI analog input) of the "H/C changeover" function block in controller 1 (RMU7x0B). The release relay in controller 1 affects the generation of heating/refrigeration energy.

  • Page 98: Changeover Based On Calendar

    9.2.3 Changeover based on calendar Calendar-based changeover is configured in the "H/C changeover" function block Changeover source calendar (see the checkmark by the calendar symbol in the primary controller, RMU7x0B). The HC changeover relay in the primary controller acts on the generation of heating/refrigeration energy which is also controlled by the primary controller.

  • Page 99: H/C Changeover Relay And Fault Messages

    Main menu > Commissioning > Extra configuration > Heating/cooling changeover Configuration Operating line Range Factory setting Heating/cooling based on calendar No, Yes Main menu > Commissioning > Settings > Heating/cooling changeover Settings Operating line Range Factory setting Start date, heating 01.01.

  • Page 100: Room Control Combination

    Room control combination 9.3.1 Application examples The "Room control combination" feature can be used to link two RM… controllers Introduction so that they operate with the same operating mode and the same room setpoint. The two controllers must belong to the same "Geographical zone (apartm)". If one of the two controllers is a type RMU controller, the RMU controller always becomes the "Room controller master".
  • Page 101 Zone addressing QAW740 RMH... RMH... Operating mode Operating mode Room unit Heating circuit 1, master Heating circuit 2, slave Geogr zone: 1 Geogr zone: 1 Geogr zone: 1 Room control combination Master Setting the room control Transmits room setpoint and operating mode combination Room control combination Slave, external setpoint...
  • Page 102 Control strategy Room control Effect Control strategy combination • Same room Slave external The slave ventilation controller shares setpoint operating mode the same setpoint as the master: • Shared setpoints Comfort heating setpoint PreComfort heating setpoint Economy heating setpoint The setpoints cannot be set in the slave ventilation controllers.
  • Page 103 The ventilation settings for an RMU master controller programmed with plant type Ventilation, A03 (ADC001 MU1 HQ) are carried out under: Master controller RMU ...> Commissioning > Communication > Room Geogr zone (Apart): 3 ...> Commissioning > Settings > Controller 1 > Cascade controller Control strategy: Alternating The heating settings for an RMH slave controller programmed with basic type 0-2 Heating,...

  • Page 104: Applications With Zones

    Applications with zones The following assumes a commercial building with a ground floor and four upper floors. On the ground floor is a retail outlet with a showroom. Each of the upper floors has four offices, three laboratories and one IT room (server, printer, fax etc.) Access to the upper floors is via a staircase and good elevator.

  • Page 105: Additional Zones In The Rxb/Rxl Room Controller

    9.4.1 Additional zones in the RXB/RXL room controller The RXB/RXL room controllers have not only the "Geographical zone (apartment)" zone category, but also the "Geographical zone (room)" and "Geographical zone (subzone)". For applications with RXB and RXL room controllers, use only the "Geographical zone (apartment)"...

  • Page 106: Supply Chains

    Supply chains The applications in the Synco 700 type RMU/RMH controllers consist of HVAC functional units. These functional units are based on the supply chains in buildings. A "supply chain" consists of at least energy generator and an energy consumer, but The supply-chain often of an energy generator, an energy distributor and an energy consumer.
  • Page 107 HVAC For a better understanding of the distribution zones for heating and cooling, the following extract is reproduced from document CM110057 "HVAC application application architecture architecture". Different energy consumption needs such as heat, refrigeration and outside air can Supply chains for a room be defined for a room.

  • Page 108: Data Exchange In Lte Mode

    Example Operator intervention Plant Functional units °C User Air supply requisition Room unit range (in reference room) Reference room control ventilation Poss. air shutoff dampers Reference room control ventilation Central air Air treatment treatment (supply air control) Coordinator Coordinator Hot water precontrol Chilled water precontrol Chilled water Hot water...

  • Page 109: Updating The Process Values

    Updating the process values Process values such as the outside air temperature can be transmitted to other bus Example devices via distribution zones. Since the process values are rarely constant, outside air temperature transmitting every minimal change in value would result in heavy traffic on the bus. The Synco controller updates the process values (in our example the outside air COV = change of value temperature) when it changes by a fixed, predefined differential ("delta value").

  • Page 110: Lightning And Overvoltage Protection, Emc

    Lightning and overvoltage protection, EMC 9.7.1 Lightning protection The notes on lightning and overvoltage protection are based on the "KNX Bibliography Handbook", Volume 4, Part 4 "Installation Safety Requirements". • The KNX bus must be included in the safety precautions for the mains network. Lightning protection •...
  • Page 111 The current standard for "Protection for building services, Lightning protection Engineering of systems and surge protection" is VDI 6004, Part 2, Issue July 2007. lightning protection arrangements If lightning protection is required in a building, the active cores (see diagram on previous page) must be connected with lightning arresters.
  • Page 112 Alternative 2 with surge arresters Routing cables between buildings With Alternative 2, the bus cable is protected with surge arresters and routed in a metal conduit or duct which is part of the equipotential bonding system. The minimum cross-section of the conduit or duct must be sufficient to allow a substantial part of the lightning current to pass across it (minimum cross-section: Cu 16 mm , Al 25 mm...

  • Page 113: Overvoltage Protection

    Where surge arresters are used instead of bus terminals, they must be connected to the nearest grounding point (e.g. protective conductor). Surge arresters (manufacturer: Dehn) are available from Siemens as off-the-shelf components in bus terminal format. • Overvoltage protection Order no.

  • Page 114: Overvoltages In Loops

    9.7.3 Overvoltages in loops Loops are frequently the cause of electromagnetic interference (EMI) and surges resulting from lightning strikes. Loops occur when two independent networks (e.g. the KNX network and the AC 230 V mains network) are connected to one bus device.

  • Page 115: Emc Protection Management

    9.7.4 EMC protection management Buildings with computer centers require EMC protection management in addition to lightning and overvoltage protection. If a KNX network is installed in a building of this type, it must be part of the EMC protection management. The EMC protection arrangements must be agreed in detail with the person responsible for EMC protection management.
  • Page 116 Blank page 116/120 Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Appendix 30.08.2007...
  • Page 117 Connection............35 CSMA/CA ............... 8 H/C changeover relay and fault messages ...99 Current consumption of the bus devices ....20 Heating / cooling changeover........95 117/120 Siemens Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products Index 30.08.2007...
  • Page 118 ID number ............. 41 Physical address ..........13 Identify device address automatically....43 Point-to-point connection........82 Individual address ..........13 Power supply unit PSU......... 21 IP address DHCP..........91 Predfined LTE filter table ........85 IP address, manual ..........91 Productmarkings............11 IP network administrator ........
  • Page 119 Blank page 119/120 Siemens Building Technologies Basic documentation: Communication via the KNX bus CE1P3127en HVAC Products 30.08.2007...
  • Page 120 Siemens Schweiz AG © 2003-2007 Siemens Switzerland Ltd Building Technologies Group Subject to change International Headquarters HVAC Products Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 www.siemens.com/buildingtechnologies 120/120 Building Technologies Basic documentation: Communication via the KNX bus...

This manual is also suitable for:

Synco 900 seriesSynco rxb seriesSynco rxl seriesSynco rmu710Synco rmu720Synco rmu730 ... Show all

Table of Contents