Monitoring, signalling and telemaintenance

The connection of the controllers into networks means that one single supervisory station can manage the parameters and information required to identify the status of the devices present and the processes being controlled. The data collected (temperature graphs, fault signals, service requests, etc.), which can be displayed by the user simply and quickly, are saved and can be made available to access the information saved via a remote connection, in order to analyse or check the correct operation of the system. They can consequently modify the control parameters, modify or force the operating modes, or directly manage any actuators. When required, it is the system itself that alerts the appropriate service centre.

Event synchronization

The individual control actions can be co-ordinated so as to be performed at certain times and in certain ways, in order to minimise any negative effects on the overall system. One example is the division of the loads due to the defrost operations, with a consequent reduction in the peak power consumption.

Distributed control

The use of both open and standard systems allows the development of distributed intelligence systems for more efficient and effective control.

Carel Solutions

Carel has implemented compatibility with all the protocols that are emerging as the  “de facto” standards in the world of HVACR and intelligent building management, and that are consequently used in the leading BMS: LonWorks®, BACnet™, TCP/IP, SNMP, and Metasys®. Carel has also developed systems to interface to other proprietary protocols, above all the Trend protocol.

Carel controllers can be connected to the BMS in the following ways:

• Directly, without any intermediate devices, thanks to the ability of the pCO sistema series controllers to select the protocol being used.

• By connection to a gateway, that is, an external device that makes the hardware standards compatible and converts the Carel proprietary protocol to the protocol used by the BMS;

• Integrating the driver that manages the Carel proprietary protocol into the BMS.