SMC Networks ProtoNode FPC-N34 Manual page 45

NOTES:
1) Normal temperatures are °F with 1 decimal of precision. The values listed below indicate there is a problem with the temperature value: 32768 =
Sensor Short, 33024 = Sensor Open, 33536 = Sensor Outside High Range, 33792 = Sensor Outside Low Range, 34048 = Sensor Not Reliable
2) Burner Control Digital I/O (AI 12) and Burner Control Digital I/O 2 (AI 13) are legacy points, it is recommended to use points Burner Control Dig I/O
(AI 59) and Burner Control Dig I/O 2 (AI 60) for new implementations. The legacy points multiplied by 10. To obtain actual values divide by 10.
3) "Burner Control Dig I/O" Codes: Bit Map:15=safety relay, 14=night setback input, 13=enable, 12=undefined, 11=undefined, 10=limit control circuit,
9=damper end switch input, 8=interlock control circuit, 7=alarm relay on, 6=undefined, 5=gas valve open, 4=external ignition on, 3=Relay D on,
2=Relay C on, 1=Relay B on, 0=Relay A on: BI values (BI 32) through (BI 44) may be used alternately.
4) "Burner Control Digital I/O 2" Codes: Bit Map: 15-8= undefined, 7=auxiliary input 2 or Flow Switch, 6=high gas pressure, 5=low water cut-off, 4=high
temperature limit, 3=auxiliary input 1, 2=start interlock 2, 1=start interlock 1, 0=air switch: BI values (BI 45) through (BI 52) may be used alternately.
5) "Demand Source" Codes: 0=none; 1=CH; 2=DHW; 3=freeze protection; 4=manual; 5=CH & DHW; 6=DHW & CH
6) "CH Mode Active Setpoint" and "DHW Mode Active Setpoint" temperatures are °F with 1 decimal of precision. A value of 33536 indicates the mode
is not currently active.
7) "Active Demand Status" Codes: 0=Normal; 1=System Pump Pre Pumping; 2=System Pump Post Pumping; 3=Boiler Pump Pre Pumping; 4=Boiler
Pump Post Pumping; 5=Tank Pump Pre Pumping; 6=Tank Pump Post Pumping; 7=DHW Pump Pre Pumping; 8=DHW Pump Post Pumping;
9=Waiting Anti Cycle; 10=Mod Back Max T; 11=Low Fire Hold; 12=Limiting - Time to High Fire; 13=Limiting - Acceleration Rate; 14=Limiting -
Deceleration Rate; 15=Waiting for Mode Demand; 16=Waiting for Boiler to Start; 17=Boiler Pump Running; 18=System Pump Running; 19=DHW
Pump Running; 20=Tank Pump Running; 21=Increased - Anti-Condensation
8) "Boiler State" Codes: 0=waiting for communication; 1=standby; 2=lockout; 3=hold; 4=waiting for air switch close; 5=waiting fo r air switch open;
6=opening damper; 7=waiting for damper to open; 8=pre-purge; 9=post purge; 10=run; 11=mod back delta temp; 12=mod back max temp;
13=mod back stack temp; 14=pre-ignition; 15=ignition; 16=mod back delta temp exceeded; 17=mod back max temp exceeded; 18=mod back
stack temp exceeded; 19=rate modified by air switch; 20=rate modified by outlet temperature; 21=rate modified by delta limit; 22=rate modified by
stack limit; 23=starting; 24=fan only; 25=stopping; 26=Lockout Verification Complete; 27=Reading Modbus Values; 28=Verifying Burner Control
Parameters; 29=SOLA Version Incorrect; 30=Checking SOLA Password; 31=Standby Near Max T Limit; 32=Waiting for Flow Switch; 33=Standby
Delta T Limit; 34=Standby Near Max Stack Limit; 35=Need to Pair SOLA to NURO; 36=Starting Hold Delay; 37=Starting Communicati on;
38=Boiler Type Unknown
9) "Error Type" Codes: 0=no error; 1=lockout; 2=boiler hold; 3=mode hold; 4=alert caused alarm
10) "BMS CH Setpoint", "BMS DHW Setpoint", "BMS DHW Tank Setpoint": The NURO control must be programmed to receive its setpoint from the
BMS system.
11) "BMS CH Demand" and "BMS DHW Demand": The NURO control must be programmed to receive its demand from the BMS system. You can
program the NURO on loss of the BMS Heartbeat to auto disable the demand from the BMS if wanted.
12) "BMS Heartbeat": This function allows for a heartbeat command between the NURO control and the BMS system. In order to establish a successful
heartbeat, the BMS system must alternate between 0xABCD (43981) and 0xDCBA (56506) within every "BMSHeartbeatTimeoutPeriod" time period.
In the event the BMS no longer alternates the values, the NURO control will assume communication to the BMS is interrupted.
13) "BMS Header Temperature", "BMS Outdoor Air Temperature", "BMS Analog Input", and "BMS DHW Temperature": These points use different points
for the Input of the value verses the output. Example AI 54 is for writing the value for "BMS Header Temperature", AV 61 is for reading "BMS
Header Temperature". The "BMS Heartbeat" is always active on these points therefore if the "BMS Heartbeat" is lost during operation, the control
will automatically change the value to 33024 = "Sensor Open". The NURO control also defaults this value to 33024 = "Sensor Open" on power up
until it receives the BMS Heartbeat and the temperature value from the BMS. If the BMS attempts to send a value which is out of range, the control
will automatically change the value to 34048 = "Sensor Not Reliable".
Page 45 of 50
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