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D01-068en201913 Manual TpH
Annex // TpH
Read / Write multiple registers (0x03 / 0x10)
The following values are in the registers:
Name R/W Address Data type Description
Modbus slave ID RW 0 Uint16 Modbus server address of the sensor.
Measurement timeout R 1 Uint16 The remaining time in [10-1 s] of the active measurement.
Serial Setting - Baudrate RW 2 Uint16
• 0x0000 9600 Baud
• 0x0001: 19200 Baud
• 0x0002: 38400 Baud
• 0x0003: 56700 Baud
Serial Setting - Parity RW 3 Uint16
• 0x0000: None
• 0x0001: Odd
• 0x0002: Even
Serial Setting - Stopbits RW 4 Uint16
• 0x0001: 1 Stop bit
• 0x0002: 2 Stop bits
Device serial number R 10 Char[20] Serial number of the sensor.
Firmware version R 15 Char[20] Installed rmware version of the sensor.
System date and time RW 107 Uint32
The current time in seconds since 1 January 1970. (Internal
counter with ±0.9% accuracy @ 8.00MHz)
Device description RW 109 Char[64] Sensor description (e.g.: “Inlet South”).
Index for Moving Aver-
age / Oset / Scaling
RW 400 Uint16
The index of the parameter for the following oset and scaling
settings. The index depends on the parameter list in this
description from register 1000:
• 0x0000: pH
• 0x0001: Temperature
Moving average RW 401 Uint16
The number of measurements over which a moving average is
calculated.
Value range: 1 – 25
Delivery state: 10
Oset RW 402 Float
Parameter oset.
Formula: scaled = (raw – oset) * scaling
Scaling RW 404 Float
Scaling factor parameter.
Formula: scaled = (raw – oset) * scaling
pH R 1000 Float The pH value of the medium (original value).
Temperature R 1002 Float The temperature of the medium in °C (original value).
SQI R 1004 Float Sensor quality index.
pH scaled R 1500 Float The pH value of the medium (customer scaled).
Temperature scaled R 1502 Float The temperature of the medium in °C (customer scaled).