User Manual

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Communication 03.10.2011
28 Communication
See basic documentation "Communication via KNX bus" (order number:
CE1P3127en) for a detailed description of communications. The following section
only describes the most important settings to commission a simple plant.
28.1 Activate communication
Communication is active when:
 The device address is entered (each bus member requires an individual device
address)
 Bus power supply is available
 Bus device is not in commissioning mode
When communication is active, the effects are:
 Exchange of data relevant for heating and ventilation technology (e.g.
heat/refrigeration demand, setpoints, etc.) if the corresponding zone settings are
available
 Remote device operation possible via KNX bus from operator station or control
station
 Fault messages are always sent via KNX bus and can be further processed by
other Synco devices
 Fault messages from other Synco devices are displayed under:
"Main menu > Faults > Fault status message bus" bus
 Fault messages from other Synco devices can be delivered to a fault relay (see
section 24.6 "Fault relay ")
28.2 "Communication" menu
28.2.1 "Basic settings" menu item
"Device address" operating line
Each bus member requires an individual device address.
Device addresses 254 and 255 are reserved for special functions. Device address
255 is used to deactivate communication (no exchange of process data).
Main menu > Commissioning > Communication > Basic settings>
Operating line Range Factory setting
Device address 1...253 (1...255) 255
If two devices on the KNX bus have the same device address, fault message
"> 1 identical device address" appears.
If two Synco RMU... basic types A or U have the same "Geographical zone
(apartment)", fault message ">1 identical geogr zone [1]" appears.
No. Text Effect
6001 >1 identical device address Urgent message; must be acknowledged
5402 >1 identical geogr zone [1] Non-urgent message; must be
acknowledged
Setting values
Fault status messages