Module Properties dialog box - Ch0x page parameters (5094-IF4IHS, 5094-IF4IHSXT)

The
Ch0x
 page (5094-IF4IHS, 5094-IF4IHSXT) includes the following parameters:
Parameter
Description
Disable Channel
Select to disable channel configuration or clear to enable channel configuration.
Disable the channel to help prevent erroneous fault reporting, such as open wire fault, and to help prevent the FLT LED for that channel from illuminating.
Input Type
The input type for the channel.
Input Range
The input range for the input type.
Enable HART
Select to enable communication with HART devices.
Engineering Units
Enter the unit of measure used for the channel.
High Signal
Enter one of four points used in scaling. The high signal is in terms of the channel signal units and corresponds to the high engineering term when scaled. The scaling equation is used.
High Signal
 values must be greater than
Low Signal
 values.
High Engineering
Enter 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. The scaling equation is used.
Low Signal
Enter one of four points used in scaling. The low signal is in terms of the channel signal units and corresponds to the low engineering term when scaled. The scaling equation is used.
Low Engineering
Enter 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. The scaling equation is used.
Notch Filter
Select the notch filter value, which attenuates the input signal at the specified frequency. Notch filter is based on what noise frequencies are present in the module’s operating environment versus any speed requirements needed for control.
Enable HART Digital Filter
Select to Enable HART Digital Filter to filter HART signal when:
  • Firmware Major Revision is 2 or above and
  • Input Range is 4…20 mA and
  • Enable HART is checked and
  • Notch Filter selected is either 100 Hz, 200 Hz, or 500 Hz
Digital Filter (ms)
Enter the time constant for a first order lag filter used to smooth noise transients on the input with a range from 0…32767 milliseconds. When set to 0, no filtering takes place.
Open Wire Detection
Select to turn on open wire detection for the channel or clear to turn off open wire detection for the channel.
Input Value during Open Wire
Select the value to report when open wire condition occurs. Choose between Maximum Engineering or Minimum Engineering.
Maximum Engineering
Maximum Engineering value at controller input tag when input open wire is detected based on user configuration.
Minimum Engineering
Minimum Engineering value at controller input tag when input open wire is detected based on user configuration.
Diagnostics
Select to open the
Ch0x Diagnostics
 dialog box and view diagnostic information.
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