Nidec Control Techniques HVAC Drive H300 HMI Bypass, Installation And Commissioning Manual

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30 HMI Bypass Controller Installation and Commissioning Guide
3.2.9 Serial Communications
This screen allows for the configuration of settings needed for serial
communication.
BAN (Building Automation Network) Protocol : Selects the network protocol.
0 = Modbus RTU
1 = BACnet
2 = Metasys N2 Open
MS/TP Max Master Mac Address : (BACnet use only) this is the highest address
that the bypass system will use when looking for the next master on the
network with which token passing can be achieved. Range 0-127
Communications Timeout Period : The period in seconds that the system will
wait to see a valid communications frame on the network.
NOTE: See HVAC Drive H300 User Guide for further serial communications
setup details.
3.2.10 Modbus RTU Configuration
This screen allows for the configuration of settings needed for serial
communication.
Serial Address : Defines the node address for the serial communications
interface range from 1 to 247.
Note: It is necessary to perform a reset by hitting the “RESET” button on the
previous page for this setting to take effect.
Baud Rate : Defines the baud rate used by the serial communications interface.