Lochinvar ProtoNode Start-up Guide
Page 10 of 56
3.3
Configuring Device Communications
3.3.1 Confirm the Device and ProtoNode COM Settings Match
•
Any connected serial devices
MUST have the same baud rate, data bits, stop bits, and
parity settings as the ProtoNode.
•
specifies the device serial port settings required to communicate with the ProtoNode.
Port Setting
IPW
Other Devices
Protocol
Modbus RTU
Modbus RTU
Baud Rate
19200
9600
Parity
None
None
Data Bits
8
8
Stop Bits
1
2
Figure 4: COM Settings
3.3.2 Set Node-ID for Any Device Attached to the ProtoNode
•
Set Node-ID for any device attached to ProtoNode. The Node-ID needs to be uniquely assigned
between 1 and 255.
•
Document the Node-ID that is assigned. The Node-ID assigned is used for deriving the Device
Instance for BACnet/IP and BACnet MS/TP.
(
NOTE: The Metasys N2 and Modbus TCP/IP field protocol Node-ID is automatically set to be the
same value as the Node-ID of the device.
Figure 5: Lochinvar Modbus COM Board Showing Serial DIP Switches