OTT HydroMet SUTRON XLINK 100, Руководство по эксплуатации и техническому обслуживанию

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Modbus
registers Last
Measured
measurement msw lsw
M1 1 2
M2 3 4
M3 5 6
M4 7 8
M5 9 10
M6 11 12
M7 13 14
M8 15 16
M9 17 18
M10 19 20
M11 21 22
M12 23 24
M13 25 26
M14 27 28
M15 29 30
M16 31 32
..
M32 63 64
Battery Voltage 901 902
Internal Temp 903 904
M1, M2, .. M32 refer to measurements.
E.g., to read the last measured sensor value for measurement M10, read registers 19 and 20 and combine
the result into a single 32 bit IEEE floating point value.
19.4.2 Calibrating Measurements by Writing to Modbus Registers
It is possible to write to the station’s Modbus Holding Registers in order to calibrate measurements.
Modbus Holding Registers 1 and 2 will map to measurement M1 and be interpreted as a float (register 1 is
MSW, 2 is LSW). Registers 3 and 4 map to M2 in the same way. Please see the table above for a complete
register map.

Writing to the Modbus Holding Registers will be treated like a measurement calibration.

If the Measurement Type is Manual Entry, writing to the corresponding registers will simply
update the measured value to the received value.

The values written to the Registers will be logged and transmitted just like other sensor readings.
To use this feature, setup the system as a Modbus Server. No further setup is needed.