User Manual EE212
Modular Humidity and Temperature Sensor | 16
Device address, baud rate, parity and stop bits can be set via:
▪
EE-PCS Product Configuration Software and the USB configuration adapter HA011066.
The EE-PCS can be downloaded free of charge from
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Modbus protocol in the register 1 (0x00) and 2 (0x01).
See Application Note Modbus AN0103 (available at
).
The serial number as ASCII-code is located in read-only registers 1 - 8 (0x00 - 0x07, 16 bits per address).
The firmware version is located in register 9 (0x08) (bit 15...8 = major release; bit 7...0 = minor release). The
sensor name is located in register address 10 (0x09).
NOTICE
When reading the serial number or the sensor name, it is always necessary to read all 8 registers, even if the
desired information requires less.
NOTICE
For obtaining the correct floating point values, both registers have to be read within the same reading
cycle. The measured value can change between two Modbus requests, exponent and mantissa may get
inconsistent then.
Communication settings (INT16)
Parameter
Register number
1)
[Dec]
Register address
2)
[Hex]
Write register: function code 0x06
Modbus address
1
0x00
Modbus protocol settings
3)
2
0x01
Device information (INT16)
Parameter
Register number
1)
[Dec]
Register address
2)
[Hex]
Read register: function code 0x03 / 0x04
Serial number (as ASCII)
1
0x00
Firmware version
9
0x08
Sensor name
10
0x09
1) Register number starts from 1.
2) Protocol address starts from 0.
3) For Modbus protocol settings see Application Note Modbus AN0103 (available at
Tab. 4
EE212 registers for device setup
