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EIO
-55
13
11 = Cooler
12 = Flow
13 = Hot Water
14 = Tank
15 = Pool
142
Outside Temperature Source
Unsigned 16
0..1
0 = Buillt-In Sensor (Default)
1
= Network Sensor
143
Outside Air Temperature - Network Write
Signed 16
-580...1220
-58.0...122.0 °F (Default 0.0)
300
Modbus Address
Unsigned 16
0..247
0..247
(Default 1)
301
Modbus Baud Rate
Unsigned 16
0..4
0
= 9600 (Default)
1
= 19200
2
= 38400
3
= 57600
4
= 76800
302
Modbus Parity
Unsigned 16
0..2
0
= None (Default)
1
= Odd
2
= Even
303
Stop Bits
Unsigned 16
0...1
0
= 1 Stop Bit (Default)
1
= 2 Stop Bits
400
Force Reset
Unsigned 16
0..1
0
= Normal
1
= Force Reset
401
Non Volatile Memory Update
Unsigned 16
0..1
0
= Normal
1
= Update
403
Force Factory Defaults
Unsigned 16
0..1
0
= Normal
1
= Force Factory Defaults
Legacy Modbus Registers
The below Modbus registers are duplicate registers for legacy product support.
Register
Parameter Description
Data Type
Raw Data
Range
FUNCTION CODE 01 - READ COILS
FUNCTION CODE 05 - WRITE SINGLE COIL
3
Relay Output (Read Only, Relay Mode=Control)
0..1
Off - On
Relay Output Override (Relay Mode=Network)
FUNCTION CODE 04 - READ INPUT REGISTERS
0
Built-In Temperature Measurement
Signed 16
-400...3020
-40.0...150.0°C
(-40.0..302.0°F)
1
Underfloor Temperature Measurement
Signed 16
-400...3020
-40.0...150.0°C
(Resistive Input 2)
(-40.0..302.0°F)
FUNCTION CODE 03 - READ HOLDING REGISTERS
FUNCTION CODE 06 - WRITE SINGLE HOLDING REGISTER
FUNCTION CODE 16 - WRITE MULTIPLE HOLDING REGISTERS
1
Unit Status. Reports Day/ECO status. Can be
Unsigned 16
0..1
0 = Day
used to override to ECO. Reset locally.
1 = Night ECO Mode
2
Nominal Setpoint
Unsigned 16
0...950
0.0...95.0 °F (Default 70°F)
14
Minimum Setpoint
Unsigned 16
0...950
0.0...95.0°F (Default 57°F)
15
Maximum Setpoint
Unsigned 16
0...950
0.0...95.0°F (Default 86°F)
16
Hysteresis
Unsigned 16
0..200
0.0..20.0°F (Default 1.8°F)
18
Frost Setpoint
Unsigned 16
0...950
0.0...95.0°F (Default 46°F)
19
Modbus Address
Unsigned 16
0..247
0..247 (Default 1)
BACnet Interoperability
Building Blocks Supported
(Annex K)
Application Service
Initiate
Execute
BIBB
ReadProperty
Yes
DS-RP-B
ReadPropertyMultiple
Yes
DS-RPM-B
WriteProperty
Yes
DS-WP-B
ReinitializeDevice
Yes
Who-Is
Yes
DM-DDB-B
I-Am
Yes
Who-Has
Yes
DM-DOB-B
I-Have
Yes