Siemens Synco 700 Series Basic Documentation

Also see for OZW775: Installation instructions

42/120Building Technologies Basic documentation: Communication via the KNX bus CE1P3127enHVAC Products Device addresses via ACS 30.08.20075.3 Device address for the OZW771.xxcentral communication unitsIn the designation OZW771.xx (where xx = 4, 10 or 64), xx indicates the number ofbus devices that can be connected to that central communication unit.The commissioning procedure is described in the installation instructions (G3117,packed with the device). For more information, refer to document P3117.The OZW771.xx central communication units do not supply power to the bus.Decentral or central bus power supply is required for communication via the KNXbus (see section 2.2).The factory-setting is device address 255. For communication via KNX, this deviceaddress must be modified.The OZW771.xx central communication units do not have a tool socket. "Manualassignment of addresses" and "Programming mode" are only possible via thefollowing connection:PC/laptop Æ OCI700 interface Æ RJ45 tool socket (device or bus socket) ÆOZW771 on KNX bus.If there are no couplers or IP routers, the factory-set area/line address 0.2 is used.1. In ACS Service select Plant > Edit device list… to open the "Edit device list" dialogbox (see section 5.2.1).2. Select the central communication unit with the left mouse button and click thebutton marked Manually… to open the "Address assignment" dialog box.3. Enter a device address in the range 1…253 (excluding 150), and confirm byclicking the Write button.1. Set the central communication unit locally to programming mode. To do this,press the "Install" button (top right on the central communication unit) for amaximum of 2 seconds. The red "Prog" LED lights up.2. In ACS Service select Plant > Edit device list… to open the "Edit device list" dialogbox (see section 5.2.3). Click the Programming mode… button to open the "Addressassignment" dialog box.3. Enter a device address in the range 1…253 (excluding 150), and confirm byclicking the Write button.The central communication unit only switches to programming mode if the buspower is available.The "Prog" LED (top, outer right) indicates the programming mode.• LED off Normal mode• LED on, red Programming mode (LED is extinguished automaticallyonce the device address has been adopted.IntroductionNoteBus power supplyDevice addressAssigning addressesmanuallyProgramming modeBus voltage"Prog" LED