Checking Status - Astralpool 65321 Manual Del Usuario

8.1.3 CHECKING STATUS

Once sent the power on command to the heater, it is possible via MODBUS, to monitor the operating
status of the heater. There are different levels of detail provided.
By reading the Input Register 0x00, we can examine the operation mode of the heater.
07 04 00 00 00 01 31 AC
Where:
07 is the slave address.
04 is the function used. Read Input Registers.
00 00 is the address of the first Input Register to be read.
00 01 is the number of records to be read.
31 AC is the CRC.
The heater response is:
07 04 02 01 02 B1 61
Where:
07 is the slave address.
04 is the function used. Read Input Registers.
02 is the quantity of bytes received.
01 02 is the state received, 100000010 in binary.
- Bit 8 is 1: The heater is on.
- Bit 1 is 1: =°C.
- Bit 0 is 0: There are no alarms.
B1 61 is the CRC.
By Input Register 0x02 we can access more detailed information about the internal state of operation
of the heater. See 8.1.5 pg.15.
© ASTRALPOOL 2016 ALL RIGHTS RESERVED. PROPRIETARY DOCUMENT
.
13