LAARS’ ProtoNode Startup Guide
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2
BACNET/LONWORKS SETUP FOR PROTOCESSOR PROTONODE FPC-
N34/FPC-N35
2.1 Record Identification Data
Each ProtoNode has a unique part number located on the side or the back of the unit. This number
should be recorded, as it may be required for technical support. The numbers are as follows:
Model
Part Number
ProtoNode FPC-N34
FPC-N34-0701
ProtoNode FPC-N35
FPC-N35-0702
Figure 1: ProtoCessor Part Numbers
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FPC-N34 units have the following 3 ports: RS-485 + Et RS-485.
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FPC-N35 units have the following 3 ports: Lo Et RS-485
2.2 Configuring Device Communications
2.2.1 Set Modbus COM setting on all of the devices connected to the ProtoNode
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All of the Serial devices connected to ProtoNode
MUST have the same Baud Rate, Data Bits,
Stop Bits, and Parity settings.
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Figure 2
specifies the device serial port settings required to communicate with the ProtoNode.
Serial Port Setting
Device
Protocol
Modbus RTU
Baud Rate
38400
Parity
None
Data Bits
8
Stop Bits
1
Figure 2: Modbus RTU COM Settings
2.2.2 Set Modbus RTU Node-ID for each of the devices attached to the ProtoNode
Set the Modbus Node-ID for each of the devices attached to ProtoNode.
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The Modbus Node-ID’s need to be uniquely assigned,
starting with a value of 1 for the first
device.
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Modbus Node-ID values for additional devices must be sequential (2, 3, 4, …).
LAARS Heating Systems
Page 8 of 43
20
Industrial Way, Rochester, NH, USA 03867
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(800) 900-9276
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www.Laars.com
