New Sealed Allen Bradley 1756-OF8H /A 2018 ControlLogix Analog Output HART Qty

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1756-OF8H

Any of the channel status words (eight words for 1756-OF8IH modules, one for each channel) display a nonzero condition if that particular channel has faulted. Some of these bits set bits in other Fault words. When the High or Low Limit Alarm bits (ChxHLimitAlarm or ChxLLimit Alarm) in any of the words are set, the appropriate bit is set in the Channel Fault word. When the Calibration Fault bit (CalFault) is set in any of the words, the Calibration Fault bit (bit 11) is set in the Module Fault word. Table 67 lists the conditions that set each of the word bits.

There are two ways to initiate calibration of the 1756-OF8IH module:

• Logix Designer application Calibration tab

• Module Output Word Module Calibration Via Logix Designer Application The Calibration tab in the Logix Designer application provides a button to initiate module calibration and a display of the results. Module Calibration Via Output Word The 1756-OF8IH module allows you to perform calibration by setting and clearing bits in the module output word. This method of calibration is available only when Configure HART Device = Yes. The module must be connected to a controller and the controller must be in run mode. See  To perform a module calibration via the output word, set and clear bits in sequence to perform the calibration tasks. The table shows the tags that are involved in calibration.

describe module-defined data types for the 1756-OF8IH module and include information for configuration, input, and output tags. Available tags depend on the selected input data formar

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