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EN_User_documentation_Instructions_for_controlling_the_Logamatic_5000_controller_series_via_Modbus_TCP_I
P_20210203.docx | 10.02.2021
Register
type
Address
Bit
Data point
name
Data
type
Value
Range
Importance
Holding
Register
0
Heartbeat (in)
INT
If the connection is to be monitored for
timeout, the counter that is different from
the old value, which can be read via the
Heart Beat (out) register, must be written
on this register.
Holding
Register
1
Heartbeat (out)
INT
If the register is read, the current counter
value of the heart beat (in) can be called
up.
Holding
Register
400
Set-point
flow temp. in °C
INT
From 0 to
120
Set-point of the currently required boiler
flow temperature.
Hint: The maximum system temperature
depends on the installed boiler and there
power.
Holding
Register
401
Set-point
system power
in %
INT
From 0 to
100
Set-point of the topically demanded system
output.
Holding
Register
402
Mode of opera-
tion
INT
0 (Off)
or
1 (Opera-
tion)
Operating mode for boiler request. 0 = Off
= Boilers are off, consumers continue to be
controlled 1 = Operation = normal opera-
tion over boiler heat request
Holding
Register
405
Bit block for
Cascade control
BIT
See the following table entries
Holding
Register
405
0
Lead boiler
BIT
0 (inactive)
or
1 (active)
If you implement your own cascade control
system as BMS, you can sign the current
boiler as the guide boiler via this bit.
Through this, the follow-up times of the
boiler circuit pump will be adjusted.
Hint: The functionality is not implemented
yet and is made available at a later time
than software update.
Holding
Register
405
1
Prioritization
BIT
0 (inactive)
or
1 (active)
Allows the boilers to be prioritized. This is
used, for example, for a faster warm water
demand.
Hint: The functionality is not implemented
yet and is made available at a later soft-
ware update.
Holding
Register
405
2
Temperature-
controlled regu-
lation
BIT
0 (inactive)
or 1 (active)
Activates or deactivates the temperature
controlled operation of the boiler.
