LAARS’ ProtoNode Startup Guide2 BACNET/LONWORKS SETUP FOR PROTOCESSOR PROTONODE FPC-N34/FPC-N352.1 Record Identification DataEach ProtoNode has a unique part number located on the side or the back of the unit. This numbershould be recorded, as it may be required for technical support. The numbers are as follows:Model Part NumberProtoNode FPC-N34 FPC-N34-0701ProtoNode FPC-N35 FPC-N35-0702Figure 1: ProtoCessor Part Numbers• FPC-N34 units have the following 3 ports: RS-485 + Ethernet + RS-485.• FPC-N35 units have the following 3 ports: LonWorks + Ethernet + RS-4852.2 Configuring Device Communications2.2.1 Set Modbus COM setting on all of the devices connected to the ProtoNode• All of the Serial devices connected to ProtoNode MUST have the same Baud Rate, Data Bits,Stop Bits, and Parity settings.• Figure 2 specifies the device serial port settings required to communicate with the ProtoNode.Serial Port Setting DeviceProtocol Modbus RTUBaud Rate 38400Parity NoneData Bits 8Stop Bits 1Figure 2: Modbus RTU COM Settings2.2.2 Set Modbus RTU Node-ID for each of the devices attached to the ProtoNodeSet the Modbus Node-ID for each of the devices attached to ProtoNode.• The Modbus Node-ID’s need to be uniquely assigned, starting with a value of 1 for the firstdevice.• Modbus Node-ID values for additional devices must be sequential (2, 3, 4, …).LAARS Heating SystemsPage 8 of 4320 Industrial Way, Rochester, NH, USA 03867 • (800) 900-9276 • www.Laars.com
