Configuring Device Communications; 3.3.1 Input Com Settings On All Devices Connected To The Protonode; 3.3.2 Set Modbus Rtu Node-Id For Each Device Attached To The Protonode; Figure 4: Modbus Com Settings - SMC Sierra Monitor FieldServer ProtoNode FPC-N38 Startup Manual

3.3

Configuring Device Communications

3.3.1 Input COM settings on all Devices connected to the ProtoNode


All of the connected serial devices MUST have the same Baud Rate, Data Bits, Stop Bits,
and Parity settings as the ProtoNode.

Figure 4 specifies the device serial port settings required to communicate with the ProtoNode.
Protocol
Baud Rate
Parity
Data Bits
Stop Bits

3.3.2 Set Modbus RTU Node-ID for each Device attached to the ProtoNode


Set Modbus Node-ID for each of the devices attached to ProtoNode. The Modbus Node-ID's
need to be uniquely assigned between 1 and 255.
o
The Modbus Node-ID that is assigned for each device needs to be documented.
 The Modbus Node-ID's assigned are used for designating the Device Instance
for BACnet/IP and BACnet MS/TP (Section 6)

The Metasys N2 and Modbus TCP/IP Node-IDs are automatically set to be the same value
as the Node-ID of the Modbus RTU device.
Port Setting

Figure 4: Modbus COM Settings

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Riello ProtoNode Start-up Guide
Device
Modbus RTU
9600
None
8
2