Communication; Activate Communication; Communication" Menu; Factory Settings - Siemens RMB795B Basic Documentation

Introduction
3 criteria for activation
Fault status messages
Setting values
"Device address"
operating line"
"Decentral bus power
supply" operating line
112 / 144
Siemens
Building Technologies
13

Communication

See basic documentation "Communication via KNX bus" (order number:
CE1P3127en) for a detailed description of communications.
The following section only gives a description of the most important settings so that
a basic plant can be commissioned.
13.1

Activate communication

Communication is active when:
• The device address is entered (each bus member requires an individual device
address),
• Bus power supply is available
• The device is not in commissioning mode.
No. Text
5000 No bus power supply
6001 >1 identical device
address
13.2

"Communication" menu

13.2.1 Factory settings

Main menu > Commissioning > Communication > Basic settings >
Operating line
Device address
bus power supply,
decentral
Clock time operation
remote setting clock
slave
remote reset of fault
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).
If two devices on the KNX bus have the same device address, fault message
"> 1 identical device address" is triggered.
For small plants, decentralized power supply suffices. This represents the default
setting.
See data sheet N3127 (KNX bus) or basic documentation CE1P33127en (KNX
communication) for more information.
If there is no bus supply, fault message "No bus power supply" appears.
Central control unit RMB795B
Communication
Effect
Non urgent message; must not be
acknowledged.
Urgent message; must be acknowledged.
Range
1...253 (1...255)
Off, On.
Autonomous, slave, master.
Yes, no
Yes, no
Factory setting
255
On.
Autonomously
Yes
No
CE1P3122en
18.01.2012