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INT16
Parameter
Read register: function code 0x03 / 0x04
Temperature T
Relative humidity RH, Uw
CO
average
2
CO
raw
2
Dew point temperature Td
1) The choice of measurement units (metric or non-metric) must be done according to the ordering guide, see CDS201 datasheet.
Switching from metric to non-metric or vice versa by using the PCS10 is not possible.
2) Register number starts from 1
3) Register address starts from 0
4) Examples: For scale 100, the reading of 2550 means a value of 25.5. For scale 50, the reading of 2550 means a value of 51.
Tab. 5
CDS201 FLOAT32 and INT16 measured data registers
5.2.6.
Freely Configurable Custom Modbus Map
It is possible to map measured value/status registers arbitrarily in a block with up to 20 registers provided for
this purpose. This means that registers of interest may be mapped in an area with consecutive registers, so that
important values can be queried with a single command in one block.
The custom map can be configured via:
▪
PCS10 Product Configuration Software and the USB configuration adapter HA011066.
The PCS10 can be downloaded free of charge from www.epluse.com/pcs10.
▪
Modbus protocol commands, refer to the examples in chapter 5.2.8. ModBus RTU Examples.
The register block for the configuration of the customisable Modbus map consists of the registers 6001 (0x1770)
to 6010 (0x1779). For the blockwise query of the measured values behind Modbus registers 3001 (0xBB8) to
3020 (0xBCB), the firmware accesses this configuration area and thus gets the information which measured
value/status registers are to be output. A maximum of 10 user-defined registers can be mapped. The table below
shows an example:
1)
4)
Unit
Scale
Register number
°C
100
°F
50
°K
50
%RH
100
ppm
1
ppm
1
°C
100
°F
100
°K
100
User Manual CDS201
2)
[DEC]
Register address
4002
4003
4005
4011
4031
4032
4053
4054
4074
CO
, Humidity and Temperature Room Sensor | 15
2
3)
[HEX]
0xFA1
0xFA2
0xFA4
0xFAA
0xFBE
0xFBF
0xFD4
0xFD5
0xFE9
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