sauter equitherm EQJW245, Руководство по эксплуатации

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EQJW245
Communication functions
be switched over. These functions can be carried out from the living room. To
connect room operating unit EDB 100 to the EQJW245 the two device bus
terminals of the room operating unit must be connected to terminals Data1 and
Data2 of the controller. The polarity is irrelevant here. The room operating unit
needs a power supply of its own.
A room operating unit can be used with for heating 1 or heating 2. With the
EQJW245, parameter CP18 must be set to “1” in order to use the room operating
unit for heating 1 (CP203 = 1 for heating 2). With parameter CP19 the address
of the room operating unit must be set if it is going to be used for heating 1. For
heating 2 the address of the room operating unit is set using CP204.
Sending and receiving outdoor temperatures 6.2.3
Controllers which have an outdoor temperature sensor can be confi gured so that
they make the measured outdoor temperature value available to other controllers
via the device bus. This allows weather-compensated control even in installations
with no outdoor temperature sensors of their own.
To send an outdoor temperature, set parameter CP10 to ‚1‘ and to receive one,
set parameter CP11 to ‚1‘.
Requesting and processing a heat requirement 6.2.4
One or more controllers can be connected downstream in a controller grouping.
You can use parameter CP12 to send the required fl ow temperatures for the
various downstream control circuits to the controller for the primary circuit. If
CP13 is set to ‚1‘ on the controller for the primary circuit, these data will be
received. The controller will then control the highest fl ow temperature sent to it in
the primary circuit.
Requesting and processing a return temperature 6.2.5
Using parameter CP14 for T
RF1
and CP201 for T
RF2
the current return temperature
for a control circuit can be sent from one controller to other controllers. For the
controllers that are going to receive the data, CP15 (if the value is going to be
valid for control circuit 1) or CP202 (if the value is going to be valid for control
circuit 2) must be set to “1”.
Synchronising the time 6.2.6
If several controllers are interconnected, their times should be synchronised. For
this purpose, CP09 is set to ‚1‘ on one of the controllers. Then, this controller
sends its system time to the device bus once every 24 hours. This time is adopted
by the other controllers. Regardless of the setting for communication parameter
CP09, if the time is adjusted on one of the interconnected controllers, it will be
adopted by the others.