MODEL FIII-SERIES CONTROL INSTALLATION ... - Agencespl.com

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REV 1.1 FIII SERIES CONTROL Modbus Input (Read Only) Registers Address Data Type Description Valid Values/Range 0 Unsigned Boilers Running 0 – 16 1 Modulation (% BTU Load) 0 – 100 2 Header / System Temperature 32 – 250 °F 3 Supply Temperature 32 – 250 °F 4 Return Temperature 32 – 250 °F 5 Outside Air Temperature -40 – 250 °F 6 Signed Spare Input 1 -32768 to 32767 7 Signed Spare Input 2 -32768 to 32767 8 Unsigned Clock – Month 0 – 11 9 Unsigned Clock – Day 1 – 31 10 Unsigned Clock – Year 0 – 99 11 Unsigned Clock – Hours 0 – 23 12 Unsigned Clock – Minutes 0 – 59 13 Unsigned Clock – Seconds 0 – 59 14 Unsigned Clock – Day of Week 1 – Monday 7 – Sunday 15 – 46 Unsigned Boilers 1 – 16 status flag (32-bit) registers. The upper 16-bits of each 32-bit register is stored at odd numbered addresses 15 – 45. The lower 16-bits of each 32-bit register is stored at even numbered addresses 16 – 46. See the Boiler Status Flags Table Below 47 – 78 Unsigned Boilers 1 – 16 runtime (32-bit) registers. The upper 16-bits of each 32-bit register is stored at odd numbered addresses 47 – 77. The lower 16-bits of each 32-bit register is stored at even numbered addresses 48 – 78. 0 – 4294967295 seconds When the upper and lower registers are combined they form a 32-bit unsigned integer that is the number of seconds that the boiler has been running. For instance: (((Register 29) * 65536) + Register 30) = Boiler 1 runtime in seconds. Boiler 1 is the master boiler. Boilers 2 – 16 are member boilers. Page 22
REV 1.1 FIII SERIES CONTROL Boiler Status Flags Bit Description Bit Description 0 Disabled 16 Ignition Alarm 1 Local Override 17 Valve Alarm 2 Alarm 18 High Limit 3 Failed 19 Air Prove Switch 4 Member Error 20 XS Factory 5 Boiler Running 21 Software Operator 6 Pump Running 22 --- 7 Spare 3 Interlock 23 --- 8 LWCO Interlock 24 --- 9 VFD Interlock 25 --- 10 Operator Interlock 26 --- 11 Water Prove (Flow) Interlock 27 --- 12 Air Prove UV Sensor Interlock 28 --- 13 Main Valve 29 --- 14 Pilot Valve 30 --- 15 Main Valve 31 Present (Boiler Detected) Page 23
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MODEL FIII-SERIES CONTROL INSTALLATION ... - Agencespl.com

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