Device-defined configuration tags (floating point)
This table includes the configuration tags for 1756 non-isolated analog input devices operating in floating point mode.
Member Name (as listed in Tag Editor) | Data Type | Description |
|---|---|---|
RealTimeSample | INT | Real Time Sample - Determines how often to sample the input signal in milliseconds. |
Ch0Config | Struct | Channel Configuration - Master structure under which the channel’s configuration parameters are set. |
Ch0Config.AlarmDisable | BOOL | Alarm Disable - Disables all alarms for the channel. |
Ch0Config.ProcessAlarmLatch | BOOL | Process Alarm Latch - Enable latching for all four process alarms:
Latching causes the process alarm to remain set until an unlatch service is explicitly sent to the channel or alarm. |
Ch0Config.RateAlarmLatch | BOOL | Rate Alarm Latch - Enables latching for the rate alarm. Latching causes the rate alarm to remain set until an unlatch service is explicitly sent to the channel or alarm. |
Ch0Config.DigitalFilter | INT | Digital Filter - A non-zero value enables the filter, providing a time constant in milliseconds used in a first order lag filter to smooth the input signal. |
Ch0Config.RateAlarmLimit | REAL | Rate Alarm Limit - The trigger point for the rate alarm status which is set if the input signal changes at a rate faster than the configured rate alarm. This point is configured in engineering units per second. |
Ch0Config.LowSignal | REAL | Low Signal - One of four points used in scaling. The low signal is in terms of the inputs signal units and corresponds to the low engineering term when scaled. Uses the scaling equation. |
Ch0Config.HighSignal | REAL | High Signal - One of four points used in scaling. The high signal is in terms of the inputs signal units and corresponds to the high engineering term when scaled. Uses the scaling equation. |
Ch0Config.LowEngineering | REAL | Low Engineering - One of four points used in scaling. The low engineering helps determines the engineering units the signal values scale into. The low engineering term corresponds to the low signal value. Uses the scaling equation. |
Ch0Config.HighEngineering | REAL | High Engineering - One of four points used in scaling. The high engineering helps determines the engineering units the signal values scale into. The high engineering term corresponds to the high signal value. Uses the scaling equation. |
Ch0Config.LAlarmLimit | REAL | Low Alarm Limit - The low alarm trigger point in engineering units. Causes the Ch0LAlarm to trigger when the input signal moves beneath the configured trigger point. |
Ch0Config.HAlarmLimit | REAL | High Alarm Limit - The high alarm trigger point in engineering units. Causes the Ch0HAlarm to trigger when the input signal moves above the configured trigger point. |
Ch0Config.LLAlarmLimit | REAL | Low Low Alarm Limit - The low low alarm trigger point in engineering units. Causes the Ch0LLAlarm to trigger when the input signal moves beneath the configured trigger point. |
Ch0Config.HHAlarmLimit | REAL | High High Alarm Limit - The high high alarm trigger point in engineering units. Causes the Ch0HHAlarm to trigger when the input signal moves above the configured trigger point. |
Ch0Config.AlarmDeadband | REAL | Alarm Deadband - Forms a deadband around the process alarms which causes the corresponding process alarm status member to remain set until the input moves beyond the trigger point by greater than the amount of the alarm deadband. |
Ch0Config.CalBias | REAL | Calibration Bias - A user-configurable offset added directly into the data Ch0Data. Used to compensate for inherent sensor offset. |
ModuleFilter | SINT | Module Filter - Configures the device filter value for all channels on the device and provides superior frequency filtering at the selected value and its harmonics.
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Ch0Config.RangeType | SINT | Range Type - Configures the channel’s input range which determines the signal range the input channel can detect. Input range values are:
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