H0: Serial or Master/Slave network address
On a Master controller this represents the address of the controller in the CAREL or Modbus supervisor
network.
The address of Slave controllers must comply with the following rule (see the example):
Code Description Def Min Max UOM User
User
terminal
H0 Serial or Master Slave network address 199 0 199 - S YES
Important: if multiple Masters, with their own local networks, are connected to a supervisor network,
the address set for each Master must consider the number of Slaves in the previous network.
Note: only the Master controller needs to be connected to the RS485 serial line (connector J4 BMS),
all of the Slave controllers communicate with the supervisor via the Master, connected to the master’s
RS485 Fieldbus port (connector J5 FBus). See “Functional diagrams”.
Example
The addresses must be configured for a supervisor network comprising three Master controllers, which
respectively manage 5, 3 and 1 Slave controllers.
Solution
For example, assign to the three Master controllers the addresses H0 = 200, 210, 220 respectively, which
also represent the controller address in the supervisor network. See the figure below for the addresses to
be assigned to the Slave controllers.
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