11.17.1 Digital Inputs On The Knx Bus; 11.17.2 Knx Signals On Digital/Analog Outputs - Siemens Desigo RXB Technical Manual

K N X
CO
R
Siemens
Building Technologies

11.17.1 Digital inputs on the KNX bus

RXB... Room controller
D1
D2
The following S-mode input and output communication objects are used when taking
advantage of spare inputs and outputs:
Digital input 1 (Output communication object)
Digital input 2 (Output communication object)
Flags Type
R W C T U
1.001
1 0 1 1 0
DPT_Switch
Parameter setting in the tool
Not used: Bus = 1 = closed
Not used: Bus = 1 = open

11.17.2 KNX signals on digital/analog outputs

RXB... Room controller
Triac Y1
Relay Q24
Triac Y1 (Input communication object)
Triac Y2 (Input communication object)
Triac Y3 (Input communication object)
Triac Y4 (Input communication object)
Relay Q24 (Input communication object)
Relay Q34 (Input communication object)
Flags Type
R W C T U
1.001
0 1 1 0 0
DPT_Switch
RXB (KNX) application library
General and central functions
Digital input 1
Digital input 2
Send heartbeat States
0
no
1
Cause
Digital input
closed
open
open
closed
Receive timeout States
0 = Off (voltage-free)
no
1 = On (AC 24V)
FNC Description of functions for FC-10, FC-11, FC-12
10385Z19en
(see 11.2 )
Effect:
Bus output
1
0
1
0
10385Z22en
Y1
Q24
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