Modules and their functions
5
Logamatic 4323
-
Subject to technical modifications.
12
5.1
CM431 controller module
Setting the control unit address
Address settings (
Æ
Fig. 5, [1]) for the Logamatic 4323
control unit are made on the CM431 module (behind the
MEC2 programming unit).
z
Remove the MEC2 programming unit.
z
You can now set the control unit address with
a screwdriver (
Æ
Fig. 5).
Fig. 5
Address settings
1
Address
Description
0
Stand-alone control unit:
Set the address to 0 if the control unit operates as stand-alone equipment (factory setting).
1 – 15
Each control unit connected must be given a different address if several control units operate together.
A fault message is displayed by the MEC2 programming unit if the same address is allocated more than once.
1
Master (lead control unit):
Address 1 is a special setting, since the control unit with this address is the master. The master controls the boiler.
Always connect the outside temperature sensor to the master.
You may setup the Logamatic 4323 control unit as the master if an external heat source is operated via the
Logamatic 4323 control unit.
When connected to others, operate the Logamatic 4323 control unit as the master (address=1), if an FM456,
FM457 or FM458 cascade module is fitted into the Logamatic 4323 control unit.
The master monitors the ECOCAN-BUS, which links the control units.
The master recognises if an address has been allocated more than once. A fault message is displayed by the MEC2.
All control units transfer their set values to the master, which uses them to formulate the overall set value.
Any chain must only include one master.
2 – max.15 Slave (subordinate control unit):
All devices with these addresses are described as slaves. No slave may ever have address 1. Each address must only
be allocated once.
When used as a substation, the Logamatic 4323 control unit will always be a slave and therefore have an address
set higher than 1.
Tab. 2
Control unit addresses
USER INFORMATION
The outside temperature sensor (FA) and
the system flow sensor (FK) in conjunction
with the Logamatic 4323 control unit must
always be connected to the l.h. FM456,
FM457 or FM458 cascade module
(if installed). If there is no cascade
module installed, plug both sensors
into the ZM433 central module
(system flow sensor at the FZB).
