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Siemens Building Technologies
Basic Documentation RVA47.320
CE1P2379E
HVAC Products
Description of the heating engineer settings
15.07.2002
4.51
LPB segment address
The segment address and the device address are used as destinations in the bus
system (similar to a postal address). To ensure communication, each device must be
correctly addressed.
1. Press the operating line selection buttons to select operating line 141.
2. Press the + / - buttons to enter the segment address.
Setting range
Unit
Factory setting
0...14 Increment
0
Entry of the segment address is especially important when used in a system. With this
setting, the system can be subdivided into a number of segments.
Entry:
0
Heat generation segment
1...14
Heat consumer segment
A bus segment is comprised of a number of devices that are used in the same place of
application. All devices in a segment must carry the same segment address.
For more detailed information about the addressing of devices in a system, refer to
”Local Process Bus (LPB), Basic Documentation, System Engineering” (document no.
CE1P2370E).
4.52
LPB power supply
•
A central bus power supply is not required in systems with up to 16 devices
•
Straightforward extension of systems
The bus power supply via the controllers enables the bus system to be powered directly
by the individual controllers (no central bus power supply).
1. Press the operating line selection buttons to select operating line 142.
2. Press the + / - buttons to select the type of bus power supply.
Setting range
Unit
Factory setting
0 / 1
Increment
1
Entry:
0 Off
No bus power supply via the controller.
1 Automatically
The bus power supply (LPB) via the controller is automatically switched on and
off depending on the requirements of the LPB.
The actual status of the power supply is shown on operating line 143.
The bus system (LPB) can be powered either via the individual controller bus power
supplies or via a central bus power supply.
Description
Setting
Effect
Segment number
Note
Benefit
Description
Setting
Effect
Note
Bus power supply
