Siemens KNX EIB TP-UART 2-IC - Page 30

GAMMA instabus
Release: February 2012
KNX EIB TP-UART 2-IC
Technical Manual pages 42 Siemens AG
Infrastructure and Cities Sector,
Building Technologies
page 30 © Siemens AG 2012 Control Products and Systems
Subject to change without further notice. P. O. Box 10 09 53,
D-93009 Regensburg
PollAddr Slotc ount Checksum Slot 0
Receive from B us s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2
Send to Controller
PollAddr Pollingstate
Rec From Controller s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
Slot 0
Send to Bus s 0 1 2 3 4 5 6 7 p s
Fig. 23: Timing for U_PollingState-Service (Host is slave)
Ctrl-Byte Src-Addr Src-Addr PollAddr PollAddr
Send to Bus s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
Ctrl-Byte Src-Addr Src-Addr PollAddr PollAddr
Receive from Bus s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
Ctrl-Byte Src-Addr Src-Addr Poll Addr
Send to Controller s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
PollCtrl+Slotnr PollAddr PollAddr
Rec from Controller s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s
PollAddr Slotcount Checksum Fillbyte for Slot0
Send to B us s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3
PollAddr Slotcount Checksum Slot 0
Slot 1
Rec eive from Bus s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4
PollAddr PollAddr Slotcount Checksum Slot 0
Send to Controller 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
PollAddr P ollingstate
Rec From Controller 0 1 2 3 4 5 6 7 p s s 0 1 2 3 4 5 6 7 p s
Fig. 24: Timing for U_PollingState-Service for a Master
3.2.3.1.9.7 Services from UART
The first character of each service sent to the host is the control field. The control field contains the
information about the TP-UART-Service. There are 3 types of services sent to the host, the EIB-Layer-
2-Services, immediate acknowledge services and the special TP-UART-Services. The EIB-Layer-2-
Services contains information about its class and a flag containing the information whether the LPDU is
a repeated one. The immediate acknowledge services are only sent in busmonitormode and includes
informations about successful sending. The TP-UART-Services are to inform the host about the
communicationstate or to reset the communication.