Table of Contents
Related Manuals for YOKOGAWA DO71
Summary of Contents for YOKOGAWA DO71
- Page 1 Technical Optical Dissolved Oxygen, model DO71/DO72 Information MODBUS Communication TI 12J06J01-00EN-P Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P, 1st Edition Euroweg 2, 3825 HD Amersfoort, The Netherlands Copyright © 2022...
- Page 2 This page is empty All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
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Page 3: Table Of Contents
Connection ........................6 MODBUS map ......................... 8 Hold Register DO ......................9 Failures and Warnings DO ....................17 Low/High Point Calibration DO ................... 18 Revision History ........................19 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... -
Page 4: Introduction
DO71 and DO72, for a basic user. Before communication using the MODBUS protocol, refer to the User’s Manual of the Optical Dissolved Oxygen sensors, model DO71 and model DO72 (IM 12J06J01-00EN-P) for details of the parameters and connections. Latest revision of the User’s Manual can be downloaded from the website: https://www.yokogawa.com/solutions/products-platforms/process-analyzers/liquid-... -
Page 5: General
The Function code received is not an Illegal Function 0x01 allowable action for the slave The Data Address received is not an Illegal Data Address 0x02 allowable address for the slave All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... -
Page 6: Modbus Communication
HOLD Register renewal cycle Process value sent in HOLD Register is configurable, initial value is 1 s. 1.4 Connection ⚫ BUS system Wired connection: Figure 1.4: DO71 sensor with HOST All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... - Page 7 RS485 Data + (B) RS484 Data – (A) yellow white-shield Power - GND white-core Power - VDC black Shield Cable shield / Probe body xx: Cable length in meters All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
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Page 8: Modbus Map
Write Multiple Register Hold Registers are Read only (R) or Read/Write (R/W). NOTE The content of this Modbus Map is based upon DO71 firmware YPA 1.4.0.xx and DO72 firmware YPA 1.4.0.xx All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. -
Page 9: Hold Register Do
0x 0000 0002 0x 0000 0004 °C 2409 Temperature Unit Uint32 0x 0000 0008 °F D: °C Measured temperature value used for temperature compensation 2411 Temperature Value Float All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... - Page 10 HR3497 Remark: Setting the interval rate to 0 3499 Interval rate Uint32 deactivates the continuous measurement (see register HR9000) D: 1 L: 0 H: 300 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 11 D: +130°C The minimum measurement tempera- ture of the sensor Remark: 4611 Measurement Temp. min Float Sensor precision is only specified within the range 0…+50°C D: -40°C All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 12 Temperature Value Raw Float Calculated Oxygen Value in the unit defined in register HR2089 4905 Calculated Oxygen Value Float For details see Section 3.1 4907 Measurement Error Uint32 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 13 L: -0.199999 H: 0.199999 Sensor constant m Remark: The default value is printed on the 4923 Sensor Constant m Float Quality Inspection Certificate (Q.I.C.) L: 0.01 H: 999.99 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 14 Cal-2 (register HR5529), T2 (register HR5531) and pATM (register HR5533) The timestamp the last high point calibration point was performed 5213 High Calibration Point Timestamp Uint32 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 15 D: 0 Counts the number of Low/High Point Calibrations 6437 Calibration counter Uint32 D: 0 Alphanumeric Serial Number code: 16 bytes, 8 addresses 6457 Serial Number YPA ASCII All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
- Page 16 Bit 0 Continuous measurement Off (0) / On (1) 9000 Measurement Status Uint32 Setting is a result of the interval rate setting in register HR3499 All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...
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Page 17: Failures And Warnings Do
Reduce ambient light. 0x00000800 Memory Write error detected Memory errors occurred. Contact the relevant YOKOGAWA sales office. 0x00001000 PME timeout Internal error. Contact the relevant YOKOGAWA sales office. All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... -
Page 18: Low/High Point Calibration Do
Temperature value too high while calibrating the high point 0x00001000 Temperature value not stable while calibrating the high point 0x00002000 Reserved 0x00004000 Reserved 0x00008000 Phase value not stable while calibrating the high point All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P... -
Page 19: Revision History
MODBUS Communication – Revision History 5. Revision History October 2022 Edition All Rights Reserved. Copyright © 2022, Yokogawa Process Analyzers Europe B.V. TI 12J06J01-00EN-P...