Gf-signet 2610 MODBUS Process Optical Dissolved Oxygen Senso Manuale Utente Scaricare il pdf

Signet 2610 Process Optical Dissolved Oxygen Sensor

3-2610.091 Rev. A 04/12 English

*3-2610.091*

English

MODBUS Manual

Cable length must not exceed 1220 m (4000 ft)

Power Connections

The red wire provides power for all system modes. Analog output

is enabled by default. The 4 to 20 mA current loop output can be

disabled by setting Modbus device register 49507 to 0. Set it back

to 1 to re-enable the 4 to 20 mA loop.

RDO is a registered trademark of In-Situ

Inc., Fort Collins, CO USA

The RDO

Pro sensor may be connected to a controller or

logger for communication via RS485 Modbus.

Trim back and insulate unused wires. The shielded wire should be

wired to a chassis ground or earth ground.

Red

Black

Blue

Green

Brown

White

Modbus

RS485

–

Modbus

RS485

3-2610-31

RDO Pro Dissolved Oxygen

Programmable Logic Controller

Other Modbus Master

–

Power

Supply

12 to 36 VDC

PLC

No connection

Red

Black

Blue

Green

Brown

White

Power Supply, 12 to 24 VDC +

Power Supply, 12 to 24 VDC –

Modbus RS485 +

Modbus RS485 –

4 to 20 mA Current Loop

SDI-12 Output

3-2610-31

RDO Pro Dissolved Oxygen

1 2 3 4 5

Sommario

Pagina 1 - MODBUS Manual

Signet 2610 Process Optical Dissolved Oxygen Sensor3-2610.091 Rev. A 04/12 English*3-2610.091*EnglishMODBUS ManualCable length must not exceed 1220

Pagina 2 - Modbus Registers

22610 DO Sensor MODBUS ManualRegisterSize(registers)Mode & Access Level (R/W)DataTypeDescriptionDissolved Oxygen Concentration40038 2 R1 ﬂ oat Mea

Pagina 3 - (registers)

32610 DO Sensor MODBUS ManualLive Salinity ValueThe live salinity value is used to correct the oxygen concentration value for salinity. Values must be

Pagina 4 - IMPORTANT

42610 DO Sensor MODBUS ManualCalibrate the sensor using the following procedure:1. Optional: Read the Sensor Data Cache Timeout register 49463 and st

Pagina 5

Calibration CalculationsCalibrated oxygen reading:O2RC = C0 + C1 × O2RUWhere:C1 = (O2100%Sat)/(O2RUS × O2RUZ)C0 = –C1 × O2RUZWhere:O2100%Sat is the th

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