Description for Modbus protocol interface
78
Set value for hot water tank
temperature
3, 6, 16
6
°C, ×10
Setting Range Shall Be the
Same as Unit’s Set Value
Set value for refrigeration
backwater temperature -
saline water
3, 6, 16
7
°C, ×10
Set value for refrigeration
outflow water temperature -
saline water
3, 6, 16
8
°C, ×10
Fault Reset
3, 6, 16
9
1-Reset
Setting Range Shall Be the
Same as Unit’s Set Value
Selection for refrigeration
control
3, 6, 16
10
0 - backwater
constant-water-temperature
control; 1 - outflow-water
constant-water-temperature
control
Setting Range Shall Be the
Same as Unit’s Set Value
Selection for heating control
3, 6, 16
11
0 - backwater
constant-water-temperature
control; 1 - outflow-water
constant-water-temperature
control
Setting Range Shall Be the
Same as Unit’s Set Value
Selection for saline water’s
work condition
3, 6, 16
12
0-standard; 1-saline water
Setting Range Shall Be the
Same as Unit’s Set Value
Action return difference of
chilled water
3, 6, 16
13
°C, ×10
Setting Range Shall Be the
Same as Unit’s Set Value
Action return difference of
cooling water
3, 6, 17
14
°C, ×10
Setting Range Shall Be the
Same as Unit’s Set Value
Action return difference of
hot-water
3, 6, 18
15
°C, ×10
Setting Range Shall Be the
Same as Unit’s Set Value
BAS Reading Module
3, 6, 16
16
1-8
Reserve
3, 6, 16
17 To
99
System State/Chiller Status
On/Off State
3
100
0-Off, 1-Power On
Status of Running Mode
3
101
0-refrigeration; 1-heating; 2-heat recovery; 8-water pump
cycle
Status o Other Units
3
102
bit0: 1-anti-freeze;
bit1: 1-power-on warm-up
bit2: main machine’s compressor status; ON-running;
OFF-stop; bit3: main machine’s water pump status;
ON- running; OFF-stop
HMI Communication Status
3
103
1-On
，
0-Off
Module’s Communication Status
3
104
bit0-7
：
Module 1-8
，
1-ON
，
0-OFF
Module fault status
3
105
bit0-7: Module 1-8, 1-Fault, 0-Normal
System’s Chilled Backwater
3
106
°C, ×10
System’s Chilled Outflow Water
3
107
°C, ×10
System’s Cooling Backwater
3
108
°C, ×10
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz