Agrowtek SXC Installation Manual - Page 7
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Analog Calibration
Analog output calibration sends a positive or negative o set to the respective output channel's digital to
analog converter (DAC.) The DAC has a resolution of 0.005mA/bit.
±1 calibration bit = ±0.005mA adjustment
For example: to shift the analog output up by 0.1mA, set the analog o est value to +20. ( 0.1 / 0.005 = 20)
MODBUS Holding Registers
Parameter
Description
Address
Device Slave Address
Serial#
Device Serial Number
DOM
Date of Manufacture
HW Version
Hardware Version
FW Version
Firmware Version
Toggle Units
Toggle sensor units
Temperature
Humidity
Sensor Reading,
Integer
Light
CO2
Temperature
Humidity
Sensor Reading,
Float
Light
CO2
Temperature
Humidity
Calibration Input,
O set (Zero)
Light
CO2
Temperature
Humidity
Calibration Input,
Analog Output
Light
CO2
A request to read or write a register that is not available will return an illegal address error (0x02).
7
Range
1 - 247
ASCII
ASCII
ASCII
ASCII
1 - 4
-2000 - 6000 (-20 - 60°C)
0 - 1000 (0 - 100%)
0 - 1000 W/m2
0 - 10,000ppm
-20.00- 60.00 °C
0 - 100.0 %
0 - 1000 W/m2
0 - 10,000ppm
See integer ranges above.
-255 - 255 (bits)
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Type
Access
8 bit
R/W
8 char
R
8 char
R
8 char
R
8 char
R
16 bit, unsigned
W
16 bit, signed
R
32 bit, oating pt R
16 bit, signed
W
16 bit, signed
W
Address
40001
40004
40008
40012
40016
41002
40101
40102
40103
40104
40201
40203
40205
40207
41101
41102
41103
41104
41301
41302
41303
41304