Menu Functions
31
If another function module (also from the network) has been selected as a source, its first output
variable (or first network input variable) in the following.
An analogue value
(temperature, computa-
tion result)
is not suitable for the enable control
. An enable control only can be a switch, thus a
digital value such as the output status of an already registered function module. If a module has sev-
eral output variables it is possible to choose between these variables.
If the enable is to be made via a digital input, output or another module, it is also possible to select the
enable via
normal
and/or
inverse
. Thus, a module also can be enabled by a switch-off status.
Indication example
of the input variable “ENABLE PUMP”: of the function module
HTG CIRC.
The
heating circuit pump only should run, when the cylinder charging is not active at the moment (cylinder
priority) via the function module
CHARGING PUMP
.
ENABLE PUMP:
Source: CHRG PUMP1
Enable via the module with that specification
1 : Stat.chrg pump
via the output status of the module
Mode: invrs.
via the inverse output status of the module
Status: ON
heating circuit pump is currently enabled
Hence, the enable of the heating circuit pump is controlled by the function module
CHARGING PUMP
with the specification
CHRG PUMP 1
. Since the mode is
inverse
, the enable is made always when
the charging pump is not running. This also happens at the moment, since the status of the enable
indicates
ON
(enabled).
By scrolling the next input variables of the module
HTG CIRC.2
appear right after the enables.
ROOM TEMPERATURE:
Source: Input
14 : Temp.room2
FLOW TEMPERATURE:
Source: Input
11 : THC flow2
.......
etc.
Hence, the module
HTG CIRC.2
needs further input information such as room temperature, flow
temperature etc.
Just as the input variable “ENABLE“ also an input of an unit from the CAN-network can be set as
source for the temperatures via
network
. By this it is possible to transfer the information of the ambi-
ent temperature to multiple control units.