Astralpool Compact 3 Titanium - ALARMS & OPERATION HOLDING REGISTERS (Read;Write); COUNTERS & TEST HOLDING REGISTERS (READ Only)

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9.2. ALARMS & OPERATION HOLDING REGISTERS (READ/WRITE)
Name
Address
Initial
value
Information
Alarm historic
0x20
0
Contains information on alarms that have been activated
at some point. Must be reset by writing a 0 from the
MODBUS or removing electrical supply. Each bit has a
meaning associated with a type of alarm.
Bit
Alarm
0
1
Overheating alarm
2
3
Flow not present and needed
4
5
6
7
8
9
10
11
12
13
14
Freezing risk
15
Request_Word
0x21
8
It is the register that allows us to turn on or off the
heater. By default, the heater is off.
bit 0 Not used.
bit 1 1= °C
0=°F
bit 8 Manual On / Off
1: Turns heater on
0: Turns heater off
Set Point
temperature
0x24
20
Temperature set point for water. Invalid values return a
type 4 exception.
9.3. COUNTERS & TEST HOLDING REGISTERS (READ ONLY)
We can read a list of counters that gather useful information, this info can help the installation to
better understand a hypothetical problem.
Name
Address
Initial
value
Information
Start counter
0x30
0
Number of times the heater has received power supply.
Overheated
counter
0x31
0
Every time there is an overheating alarm this counter
increases. When desired, it can be put to 0.
Freezing risk
0x32
0
Every time there is a freezing risk alarm, this counter
increases. When desired, it can be put to 0.
Total Operation
time
0x33
0
Every hour of heating time, increases the counter by 1.