Endress+Hauser SpectraSensors J22 TDLAS, Руководство по эксплуатации

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J22 TDLAS Gas Analyzer Operating Instructions
Hauser 93
Symbol Meaning
Out of specification. The device is operated outside its technical specification limits (e.g., outside the process
temperature range).
Maintenance required. Maintenance is required. The measured value is still valid.
9.3.2 Calling up remedy information
Remedy information is provided for every diagnostic event to ensure that problems can be rectified quickly. These
measures are displayed in red along with the diagnostic event and the related diagnostic information.
9.4 Diagnostic information through the communication interface
9.4.1 Reading out diagnostic information
Diagnostic information can be read out from the Modbus RS485 or Modbus TCP register addresses. See Modbus
registers →  for more information:
• From register address 6821 (data type = string): diagnosis code, e.g., F270
• From register address 6801 (data type = integer): diagnosis number, e.g., 270
For an overview of diagnostic events with diagnosis number and diagnosis code →  .
9.4.2 Configuring error response mode
The error response mode for Modbus RS485 or Modbus TCP communication can be configured in the Communication
submenu using 2 parameters.
Navigation Setup → Communication
Parameter overview with brief description
Parameter Description User entry Factory setting
Failure mode Select measured value output behavior when a
diagnostic message occurs through Modbus
communication.
This effect of this parameter depends on the
option selected in the Assign Diagnostic
behavior parameter.
• NaN value
• Last valid value
NaN = not a number
NaN value
9.5 Adapting the diagnostic behavior
Each item of diagnostic information is assigned a specific Diagnostic behavior at the factory. The user can change
this assignment for specific diagnostic information in the Diagnostic behavior submenu.
Navigation Expert → Setup → Diagnostic handling → Dia gnostic behavior
You can assign the following options to the Diagnostic number as the diagnostic behavior:
Options Description
Alarm The device stops measurement. The measured value output from Modbus RS485 and Modbus TCP
assume the defined alarm condition. A diagnostic message is generated. The background lighting
changes to red.
Warning The device continues to measure. The measured value output from Modbus RS485 and Modbus TCP are
not affected. A diagnostic message is generated.
Logbook entry only The device continues to measure. The diagnostic message is displayed only in the Event logbook
submenu ( Event list submenu) and is not displayed in alternation with the operational display.
Off The diagnostic event is ignored, and no diagnostic message is generated or entered.