Carrier CCU - Information for Integrators; 15 - INFORMATION FOR THE INTEGRATOR; 15.1 ModBus Integration Parameters; 15.2 BACnet IP Integration Specifications

15 - INFORMATION FOR THE INTEGRATOR
15.1 - ModBus
Modbus RTU communication is precongured on the gateway kit. To guarantee communication with the controller, it is necessary to
congure the following parameters on the machine:
■ Precision air conditioning controllers:
- P700 = Modbus
- P701 = 9600 bauds (speed)
- P702 = Without (parity)
- P703 = 1 (stop bit)
- P704 = No (not swapped)
- P705 = 1 (Bus no.)
- P706 = Remote
■ Note:
- Versions compatible with the gateway:
• Precision air conditioning: from version V21
For earlier versions, the service must update the machine controller, otherwise communication errors may occur.
15.2 - BACnet IP
BACnet communication must be implemented using a BACnet integrator.
■ The BACnet IP gateway kit is congured to the following specications:
- Protocol: BACnet IP UDP/IP slave. The CMS must be a "client" (or "master") type system.
- DeviceID: the default device ID is 1003 for the precision air conditioning controller. If there is a duplication on the network (another
item of equipment with this ID or several gateway kits in use on the same installation), it will be necessary to ask the service
technician to modify this parameter
- Name of the equipment: the name published on the BACnet network is AHU, depending on the gateway reference.
- Communication port: standard port 47808
- Publication of objects: the names of the objects published use mnemonics. It is necessary to use the table at the end of the
document to nd the meaning
- Segmentation: segmentation is not supported by the BACnet kit. It is recommended to explore the equipment object by object
(deactivation of read all).
15.3 - BACnet MSTP
BACnet communication must be implemented using a BACnet integrator.
■ The BACnet MSTP gateway kit is congured to the following specications:
- Protocol: BACnet MSTP Slave. The CMS must be a "client" (or "master") type system.
- Support: RS485 2-wire (+ shared)
- DeviceID: the default device ID is 1003 for the precision air conditioning controller. If there is a duplication on the network (another
item of equipment with this ID or several gateway kits in use on the same installation), it will be necessary to ask the service
technician to modify this parameter
- Name of the equipment: the name published on the BACnet network is AHU, depending on the gateway reference.
- Highest master: the maximum number of "masters" on the bus is 1 (can be modied by the service technician if necessary)
- Publication of objects: the names of the objects published use mnemonics. It is necessary to use the table at the end of the
document to nd the meaning
- Communication:
• Speed: 38400 bauds
• Data bits: 8 bits
• Stop bits: 1 bit
• Parity: without
- Segmentation: segmentation is not supported by the BACnet kit. It is recommended to explore the equipment object by object
(deactivation of read all).
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