Laars MagnaTherm HTD Series Installation And Operation Instructions Manual page 47

HTD
Modbus
Address Type R/W
89 U16 Read Boiler Pump Status
90 U16 Read Cascade Master Heat Demand
91 U16 Read Burner 1 Run Time
128 S16 Read/Write CH1 Enable/Disable
129 S16 Read/Write CH1 Set Point
130 S16 Read/Write CH1 P
131 S16 Read/Write CH1 I
132 S16 Read/Write CH1 D
133 S16 Read/Write CH2 Enable/Disable
134 S16 Read/Write CH2 Set Point
135 S16 Read/Write CH2 P
136 S16 Read/Write CH2 I
137 S16 Read/Write CH2 D
148 S16 Read/Write DHW Enable/Disable
149 S16
Read/Write DHW Set Point
150 S16 Read/Write DHW P
151 S16 Read/Write DHW I
152 S16
Read/Write DHW D
155 S16 Read/Write Cascade CH Set Point
156 S16 Read/Write Cascade CH P
157 S16 Read/Write Cascade CH I
158 S16 Read/Write Cascade CH D
163 S16 Read/Write Hybrid Set Point
164 S16 Read/Write Hybrid Differential Temperature
165 S16 Read/Write Vari-Prime P - Proportional Term
166 S16 Read/Write Vari-Prime I - Integral Term
167 S16 Read/Write Vari-Prime D - Derivative Term
168 S16 Read/Write Vari-Prime Delta T
174 S16 Read/Write DHW Demand switch
175 S16 Read/Write CH 1 Demand switch
176 S16
Read/Write CH 2 Demand switch
179 S16 Read/Write Modbus Parameter Write Enable
BACnet
Map Descriptor Name Data Type
BACnet
Object ID Read/Write
217 = interpurge
241 = Postpurge
245 = Trial for Ignition
250 = Trial for Ignition Main
52=Post Purge
AI 89 Read
AI 90 Read
AI 91 Read
i
AV 0 Read/Write
AV 1 Read/Write
AV 2 Read/Write
AV 3 Read/Write
AV 4 Read/Write
AV 5 Read/Write
AV 6 Read/Write
AV 7 Read/Write
AV 8 Read/Write
AV 9 Read/Write
AV 20 Read/Write
AV 21 Read/Write
AV 22 Read/Write
AV 23 Read/Write
AV 24 Read/Write
AV 27 Read/Write
AV 28 Read/Write
AV 29 Read/Write
AV 30 Read/Write
AV 35 Read/Write
AV 36 Read/Write
AV 37 Read/Write
AV 38 Read/Write
AV 39 Read/Write
AV 40 Read/Write
BV 0 Read/Write 0 = No Heat Demand; 1 = Heat Demand
BV 1 Read/Write 0 = No Heat Demand; 1 = Heat Demand
BV 2 Read/Write 0 = No Heat Demand; 1 = Heat Demand
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Notes