16
Data transfer with DL bus
The FRISTAR3-WP controller can be connected to the DL bus. The DL bus allows the sensor values,
the set value and the heat meter values to be adopted via DL inputs on the TA controllers. This also
makes logging of the values possible
With the programmable controllers (e.g. UVR16x2), a set value can be issued via a DL output which
will overwrite the setting on the FRISTAR3-WP controller.
The FRISTAR3-WP controller returns the corresponding value when requested by the control system.
The request is made up of the DL address of the FRISTAR3-WP controller and the index of the read
-
ing.
The address is set with DIP switches on the PCB of the FRISTAR3-WP controller, which are labelled
1, 2 and 4. These are located on the outer edge of the PCB. If the DIP switches are not in the ON po
-
sition, address 1 is assigned to the FRISTAR3-WP controller (factory setting). Provided no other sen
-
sors are connected to the DL bus, no change of address is required.
The new address is derived from address 1 (= factory setting) plus the sum of all values of the DIP
switches that are set to ON.
Example
: desired address 6
= 1 (from factory settings) + 1 + 4
= DIP switches 1 and 4 must be set to ON
The
index
of the respective values is fixed:
Index: Measurement:
1
Actual DHW temperature T
ww
[°C]
2
Cold water temperature T
KW
[°C]
3
Flow rate [l/h]
4
Primary temperature T
Pri
[°C]
5
Circulation temperature [°C]
6
Set temperature [°C]
7
Pump output [%]
8
Valve position [%]
9
Current output [kW]
10
Total energy [kWh]
11
Total energy [MWh]
12
Water meter [m
3
]
13
Status (see "Status" on page 17)
DIP switches
Summary of Contents for FRISTAR3-WP
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