Registers
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Modbus RS485 Interface
Operating Guide
Registers
Conventional Conductivity Readings Continued
2158 Get Channel 1 TDS Units* INT TDS Reading Units
*(only available when
units set to TDS)
500 = ppm
2458 Channel 2 1028 = ppt
2758 Channel 3
2159 Get Channel 1 Temperature
Reading
FLOAT Temperature Reading -50°C to +150°C or
-58°F to +320°F
2459 Channel 2
2759 Channel 3
2161 Get Channel 1 Temperature
Units
INT Temperature Reading
Units
1040 = °C
2461 Channel 2 1041 = °F
2761 Channel 3
Dissolved Oxygen Readings
2200 Get Channel 1 % Sat Reading FLOAT Percent Saturation
Reading
0 to 199.9%
2500 Channel 2
2800 Channel 3
2202 Get Channel 1 ppm Reading FLOAT Concentration Reading 0 to 30.00 ppm
2502 Channel 2
2802 Channel 3
2204 Get Channel 1 pO2 Reading FLOAT Partial Pressure of
Oxygen Reading
0 to 9999 mBar pO2
2504 Channel 2
2804 Channel 3
2206 Get Channel 1 mmHg Reading FLOAT Millimetres of Mercury
Reading
0 to 999.9 mmHg
2506 Channel 2
2806 Channel 3
2208 Get Channel 1 mg/l Reading FLOAT Milligrams per Litre
Reading
0 to 30.00 mg/l
2508 Channel 2
2808 Channel 3
2210 Get Channel 1 Probe Current
Reading
Probe
mV Reading*
FLOAT Probe Current Reading/
Probe mV Reading*
*Royce DO Only
0 to 4000µA (galvanic)
0 to 500.0nA (polargraphic)
0 to 100.0mV*
2510 Channel 2
2810 Channel 3
2212 Get Channel 1 Probe Current
Reading Units /
Probe mV
Reading Units*
INT Probe Current Reading
units / Probe mV
Reading Units*
*Royce DO Only
750 = Current (µA)
2512 Channel 2 760 = Current (nA)
2812 Channel 3 1105 = mV*
2213 Get Channel 1 Temperature
Reading
FLOAT Temperature Reading -50°C to +160°C
2513 Channel 2 -58°F to +320°F
2813 Channel 3
2215 Get Channel 1 Temperature
Units
INT Temperature Reading
Units
1040 = °C
2515 Channel 2 1041 = °F
2815 Channel 3
2216 Get Channel 1 Pressure
Reading
FLOAT Pressure Reading Atm: 0 to 99.99
2516 Channel 2 Bar: 0 to 99.99
2816 Channel 3 Kpa: 0 to 9999
mH20: 0 to 999.9
psi: 0 to 9999
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