4 mcsa network, 1 setting the can addresses – EVCO EPH4DXP1SA User Manual
Page 35
EVCO S.p.A.
c-pro 3
hecto MCSA | User manual ver. 2.0 | Code 144MCSAE204
page 35 of 52
5.3.4
Management of the dehumidifier alarm digital input
The controller has a dehumidifier alarm digital input.
Whenever the digital input is in the "disabled" logic level, the dehumidifier will be considered in OFF status and all the
relative regulations will be disabled.
5.4
MCSA network
In the event of centralised heating/cooling system, up to 8 MCSA modules can be connected in the network using the
CANbus with the purpose of sharing the system resources.
In this way, it will be sufficient to physically connect the heat pump/chiller/boiler to just one MCSA module which, on
collecting the activation requests of all modules present in the system, will effectively activate the heat
pump/chiller/boiler.
In the same way, it will be possible to connect a unique external temperature probe for the entire system to the same
instrument that manages the heat pump. The external temperature value will be passed via CANbus to the other
MCSA's connected.
In this way, it will be sufficient to wire just the CANbus between the modules connected in the network without having
to physically wire the unique heat pump and an external temperature probe to all MCSA modules.
5.4.1
Setting the CAN addresses
This type of network requires an appropriate CAN address of the modules and displays connected in the network in a
way not to generate conflicts. Only the MCSA module address will remain unvaried, which will assume the role of
master and to which the heat pump (chiller, boiler) must be physically wired along with the external temperature
probe and the user terminal that refers to the same.
The CAN address must be modified for all other modules, according to the following table:
Node
CAN MCSA address
CAN V-room address
Master
1 (Standard)
99 (Standard)
2
2
98
3
3
97
4
4
96
5
5
95
6
6
94
7
7
93
8
8
92
A MCSA module with CAN address different to 1 will automatically "send" any request for heat pump activation coming
from the zone being controlled to the module with CAN 1 address. Similarly, it will read the external temperature value
made available by the same module.
To modify the MCSA module CAN address, just change the dedicated parameter value. To modify the address of the
user terminal, the following procedure must be performed:
5.4.1.1
Vroom
CAN configuration
Operate as follows to access the procedure:
1.
Disconnect the power supply.
2.
Keep the ESC and RIGHT keys pressed.
3.
Connect the power supply.
4.
When the display shows the following menu (hereon called Main menu) release the ESC and RIGHT keys: