Use the input and output tags to read the Historian ME status

With the Module Profile, you can view the current status of your Historian ME module directly in Logix Designer. The status is presented with input and output tags. Each tag corresponds with a specific functionality of FactoryTalk Historian ME.
TIP:
The bits referenced in this section are indexed from right to left, with the least significant bit indexed as
a0
, and the adjoining bits indexed as
a1
,
a2
, etc.
The
Fault
 tag may indicate the following activities of the module:
  • The module has entered safe mode.
    The safe mode is indicated with the least significant bit (
    a0
    ) in the
    Fault
     word set to
    1
    .
    Use the input and output tags to read the Historian ME status
  • There is at least one bad point on the module.
    The bad points are indicated with the
    a1
     bit in the
    Fault
     word set to
    1
    .
    Use the input and output tags to read the Historian ME status
    This reflects the information available on the
    Home
     tab of FactoryTalk Historian ME module page under
    Point Statistics
    .
    Point statistics
  • The time synchronization with the NTP server does not work correctly.
    The time synchronization error is indicated with the
    a2
     bit in the
    Fault
     word set to
    1
    .
    Use the input and output tags to read the Historian ME status
    The update of the time synchronization status in the tag value may be delayed by several minutes after the actual status change.
    The indication of the NTP time synchronization status is correlated with the following message:
    There is a clock drift of 500 ppm or the NTP server cannot be reached to synchronize the time.
    The message appears on the
    Time Management
     page in the following locations in the Historian module web interface:
    • On the
      Advanced
       tab in the Historian web client.
      Use the input and output tags to read the Historian ME status
    • On the
      Hardware
       tab in the Web Diagnostics client.
      Verify time synchronization
  • At least one required PI process and/or FactoryTalk Historian ME-specific process is not running.
    This is indicated with the
    a3
     bit in the
    Fault
     word set to
    1
    .
    Use the input and output tags to read the Historian ME status
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