Menu Network
40
Data logging
There are 2 data logging possibilities:
Via the data link (DL-bus):
When data logging via the DL-bus, there is a constant data flow from the controller to the C.M.I. or the
data converter D-LOGG. The values or states of all inputs, switch outputs and the values of up to two
heat meters are specified as a data record. For more information see chapter
Outputs/Special Fea-
tures of Output 14
.
Via the CAN-bus:
CAN data logging is only possible with the C.M.I.. In contrast to data recording via the DL-bus, the
data to be logged via the CAN-bus are freely selectable. Likewise, there is no constant data output.
Upon querying of a C.M.I. the controller stores the actual values in a logging buffer and locks this to
prevent it from being overwritten (requests received from a second C.M.I.) until the data are read out
and the logging buffer has been released again. In the menu
Network/Data Logging
the parameters
for data logging are defined via a CAN bus connection.
The essential settings of the C.M.I. for the data logging via CAN bus are described in the online help
of the C.M.I..
Menu overview:
MASTER NODE: 56
Timeout: 60 Sec
digital values
analogue values
delete all def.
WARNING!
Settings are immediately deleted without prior secu-
rity prompt!
Master Node
– The controller is allocated a C.M.I. as logging master. The logging command of this
master has absolute priority; this means that the logging buffer is
always
updated at the command of
the master (even if it was blocked by another C.M.I.) unless the data is being output (sent) to another
C.M.I. at that time.
Timeout
– The duration of the logging buffer data block has a time limit. Once this time span has
expired, the buffer is again released by the controller.
Digital and Analogue Values -
Each controller can output a maximum of 26 digital and 32 analogue
values using 2 data records that are defined in the menu "
Network/Data Logging
" of the UVR 1611.
Each data record comprises 16 analogue and 13 digital values as well as 2 heat meters:
Digital
Analogue
Heat meter
Data record 1
1 – 13
1 – 16
1 – 2
Data record 2
14 – 26
17 – 32
3 – 4
If, for example, a digital value is to be stored in data record 2, then it must be defined as digital value
14 or higher.
