Daikin Tewis ECO2SMART Handleiding pagina 74

8. MODBUS COMMUNICATION

8.1. CONFIGURATION OF MODBUS DEVICES

The ECO2Smart controller needs to read certain variables from the regulation controller(s) in order to

operate correctly. The Modbus RTU interface (for Tewis or Carel controllers) or Modbus TCP (for

Danfoss controllers) is used for this purpose.

In order to communicate with the different devices in the Modbus RTU network (Tewis or Carel) such

as the MT control unit or the XVD, it is necessary that the same Modbus RTU communication

properties are configured in all the devices:

Baudrate: 19200

Parity: None

Stop Bits: 1

The addresses of each of the devices should be as follows:

• XVD Controller:

• V910 Controller:

• Network analyser IEM3255 (CN09_HabIEM3255=1):

• Main Tewis Control Unit (CN08_TypeCentralitaMT=0):

• Backup Tewis Control Unit (CN08_TipoCentralitaMT=0 and CN10_CentralBackup =1):

• Main Carel Control Unit (CN08_TypeCentralitaMT=1):

• Backup Carel Control Unit (CN08_TipoCentralitaMT=1 and CN10_CentralBackup =1):

• Main Danfoss 782 Control Unit (CN08_TypeCentralitaMT=2):

• Backup Danfoss 782 Control Unit (CN08_TipoCentralitaMT=2 and CN10_CentralBackup =1):

• Main Danfoss 772 Control Unit (CN08_TipoCentralitaMT=3):

• Backup Danfoss 772 Control Unit (CN08_TipoCentralitaMT=3 and CN10_CentralBackup =1):

In the case of the Danfoss control units, an intermediate M2M2 gateway is required, which has a

Modbus RTU and a Modbus TCP interface. The configuration that should be applied to each gateway

is the following:

In the case of the Modbus RTU interfaces, they must always have the following configuration:

Baudrate: 19200

Parity: None

Stop Bits: 1

• M2M2 of Main Danfoss 782 Control Unit (CN08_TipoCentralitaMT=2)

and (CN12_ModbusDanfoss =1)

Modbus RTU Address: 30

Ethernet Configuration:

C/ Sir Alexander Fleming, 7 _ 46980 Paterna (Valencia) SPAIN info@tewis.com www.tewis.com (+34) 963 13 42 02

IP: 10.39.245.237

Default Gateway: 10.39.245.254

Mask: 255.255.255.0

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