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DIGITAL SETTINGS
Baud rate
Data bits
Parity
Stop bits
Slave address
ID address, baud rate, parity and stop bits can be set via:
1. EE-PCS, Product Configuration Software and the appropriate configuration cable.
2. Modbus protocol in the register 60001 (0x00) and 60002 (0x01). See Application Note Modbus AN0103
(available on www.epluse.com/ee210)
The measured values are saved as a 32 bit float value and as 16 Bit signed integer, see the Modbus Register map below.
The serial number as ASCII-code is located at read register address 30001-30008 (16 bit per address).
The firmware version is located at register address 30009 (bit 15...8 = major release; bit 7...0 = minor release).
The sensor name is located at register address 30010.
MODBUS REGISTER MAP
FLOAT 32 bit (read register):
Function code /
Register number
[Dec]
1)
30026
30028
30030
30032
30034
30036
30038
30040
30042
INTEGER 16 bit (read register):
Function code /
Register number
[Dec]
1)
30301
30302
30303
30304
30305
30306
30307
30308
30309
INTEGER 16 bit (read and write register):
Function code / Register number
60001
60002
INFO (read register):
Function code / Register number
30001
30009
30010
1) Register number starts from 1
2) Register address starts from 0
3) The choice of measurement units (metric or non-metric) must be done in the ordering guide, see EE210 data sheet.
Switching from metric to non-metric or vice versa by using the EE-PCS is not possible.
4) 100 is scale 1:100 (2550 is equivalent to 25.5 °C)
5) If the ID is set via DIP-switch the response will be NAK
6) For Modbus protocol settings please see Application Note Modbus AN0103 (available on www.epluse.com/ee210)
Factory settings
9600
9600, 19200, 38400, 57600, 76800, 115200
8
8
EVEN
None, odd, even
1
1 or 2
242
1...247
Register address
[Hex]
2)
0x19
0x1B
0x1D
0x1F
0x21
0x23
0x25
0x27
0x29
Register address
2)
[Hex]
Parameter name
0x12C
temperature
0x12D
relative humidity
0x12E
water vapour partial pressure
0x12F
dew point temperature
0x130
wet bulb temperature
0x131
absolute humidity
0x132
mixing ratio
0x133
specific enthalpy
0x134
frost point temperature
[Dec]
Register address
1)
0x00
0x01
[Dec]
Register address
1)
0x00
0x01
0x09
Selectable values
Parameter name
temperature
relative humidity
water vapour partial pressure
dew point temperature
wet bulb temperature
absolute humidity
mixing ratio
specific enthalpy
frost point temperature
[Hex]
Parameter name
2)
Slave-ID
Modbus protocol settings
[Hex]
Parameter name
2)
Serial number (as ASCII)
Firmware version
Sensor Name
Unit
3)
[°C], [°F]
[%]
[mbar], [psi]
[°C], [°F]
[°C], [°F]
[g/m³], [gr/ft³]
[g/kg], [gr/lb]
[kJ/kg], [BTU/lb]
[°C], [°F]
Unit
3)
Scale
[°C], [°F]
100
[%]
100
[mbar], [psi]
100
[°C], [°F]
100
[°C], [°F]
100
[g/m³], [gr/ft³]
100
[g/kg], [gr/lb]
100
[kJ/kg], [BTU/lb]
100
[°C], [°F]
100
modbus address
5)
6)
4)
5
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