9
BASIC MODBUS-RTU REGISTER MAP
The table shown in this chapter is our exclusive and original register map with the name of the function
and their address.
To reset the alarm errors, it is necessary to reset it from the Holding Register 0x20 and not from Input
Register 0x01 due to, the Input Register 0x01 will reset when the current error alarm disappears. To
reset all the alarms, it is necessary to set to 0 the Holding Register 0x20.
Note: a disconnection of the power supply will also reset the latched alarms.
In the register map, in some cases the data is split in two parts due to the size of the information.
These parts are the high byte and the low byte. The high byte represents the more significant byte, and
the low byte represents the less significant byte.
9.1 HOLDING TYPE REGISTERS (READ) FACTORY SETTINGS.
We can read and write to the registers 0x00 and 0x01.
Name
Address
ID_Adress
0x00
COM_Setup
0x01
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Initial
Information
value
7
MODBUS slave address. The addresses assigned to the
heater are 7 to 10. Returns a type 3 exception if you want
to write a different value than 1..255.
0
The configuration of the serial communication on the
MODBUS. Allowed values:
0: 9600, 8, E, 1
1: 19200, 8, E, 1
2: 9600, 8, N, 2
3: 19200, 8, N, 2
4: 9600, 8, N, 1
5: 19200, 8, N, 1
An invalid value generates a type 3 exception.
.
19