System time, alarms, and remote time adjustment - Basic Documentation - RMK770-1

Communication via the KNX bus

Product Family
Synco
Product Group
Air conditioning controller
Content Language
English
Content Type
Basic Documentation
Status
Valid
Date
2013-04-08
Document No
CE1P3127en
Download ID
A6V10088170
Stock No.
BPZ:RMK770-1
Product No.
RMK770-1

System time

The system time (time and date) is communicated in S-Mode and not affected by LTE filtering.

Alarms and remote time adjustment

Alarms and remote time adjustments are transmitted in LTE-Mode (LTE broadcast address). This address is listed in the predefined LTE filter table and therefore subject to LTE filtering.

Two-way and one-way communication

The diagram shows the following:

The system time (time and date) is always transmitted by devices on the primary line to devices on the secondary line and vice versa 🡪 two-way communication.

Normal (route)

If the filter is set to "Normal (route)" in the area/line couplers and IP routers, alarms and remote time adjustments are transmitted only from the secondary line to the primary line 🡪 one-way communication.

Route all

If "Route all" is set, alarms and remote time adjustments are transmitted from the secondary line to the primary line and vice versa 🡪 two-way communication.

Block all

"Block all" means that the transmission of alarms and remote time adjustments is blocked 🡪 no LTE telegram communications.

Time synchronization

In a network with couplers and IP routers, only one RM… controller can function as time master (see Section 6.1.2).

The time can only be adjusted remotely via a time slave if the time master is located on the same line or on the next higher line.