elsner elektronik P04-KNX-GPS, Installation And Adjustment

16

Parameter setting

Weather Station P04-KNX-GPS

 • Version: 01.04.2020 • Technical changes and errors excepted.

6.0.2. Malfunction objects

Malfunction objects are sent after every reset and, additionally, after changes (i.e. at
the beginning and end of a malfunction).

6.1.

General settings

Set basic characteristics of data transfer.

6.2.

GPS

Set whether the time and date are to be sent as separate objects or as one common
object. Specify whether the time and date are to be set by the GPS signal or objects.

If time and date are 

set by the GPS-Signal

, the data is available as soon as a valid

GPS signal is received.

If time and date are 

set by two objects

, then only a maximum of 10 seconds may

elapse between receiving the date and receiving the time Furthermore, a change of
date may not occur between receiving both objects. The objects must be received by
the device on the same day.

The device has an integrated real-time clock. Therefore, time keeps on running inter-
nally and can be sent to the bus, even when no GPS coverage is available or no time
object has been received for some time. The internal clock can show a time drift of up
to ±6 seconds per day.

Set what happens in the event of a GPS malfunction. Please note, that after return of
auxiliary voltage, it can take up to 10 minutes before the GPS signal is received.

Transmission delay after reset/restoration of bus for:

Measured values

5 … 300 seconds

Maximum telegram quota

1 • 2 • 5 • 10 • 20 • 50 Telegrams per sec.

Object type date and time

• two separate objects
• a common object

Date and time will be set by

• GPS signal and not sent
• GPS signal and sent periodically
• GPS signal and sent on request
• GPS signal and sent on request 
   + periodically
• object(s) and not sent

   Send cycle

   (if sent periodically)

5 s … 2 h; 1 min

If there is no reception, GPS fault is
… recognised after the last reception

20 min • 30 min • 1 h • 1.5 h • 2 h