Baud Rate Selection; Broadcasting - Astralpool 65321 Manual Del Usuario

Example: changing the ID address from 0x07 (default) to 0x08.
Transmit Message: 07 06 00 00 00 08 88 6A
Where:
07 is the slave address. (The actual ID address).
06 is the function used. Write Single Registers.
00 00 is the address of the first Holding Register to be written.
00 08 is the new ID address.
88 6A is the CRC.

7.3.2 BAUD RATE SELECTION

The Baud Rate selection of the serial communications with the Compact heater is set through the 0x01
Holding Register. By default, 9600 bps and 8E1 (8 data bits, Even Parity, 1 stop bit) is implemented.
However, 19200 bps, 1 and 2 stop bits with no parity are also supported. It allows us a total of six
different configurations.
The reason for supporting N2 frames is to keep the MODBUS standard requirement of sending eleven
bits per byte (1 start + 8 data + 1 parity + 1 stop). Whenever an 8N2 configuration is chosen, then 2
stop bits are introduced to keep the eleven bits per byte required by the standard.
Although 8N1 frames are also supported, keep in mind that with this selection you are not fulfilling the
MODBUS standard requirements as far as only ten bits per byte are used.
According to this, the baud rate and frame selection is completed defining the baud rate (in bauds),
number of data bits, parity and number of stop bits.
COM_Setup:
Factory setting:
Supported values:

7.4 BROADCASTING

Broadcasting is not supported by the Compact Heater.
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Communication setup
0 9600, 8E1
0 9600, 8E1
1 19200, 8E1
.
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