Rockwell Automation 937CU-AIHLP-DC1 HART Loop Converter Installation Instructions - Manual (Page 33)

Bul. 937C HART Loop Converter Installation Instructions
Editing device data: Input
Defining a Characteristic
The choice of characteristic defines the limits for measuring underrange and overrange.
Measuring underranges or overranges outside the specified range cannot be analyzed.
If measuring ranges are undercut or exceeded, the minimum or maximum value is
issued constantly.
1. Select the characteristic using the  or  buttons.
2. Select the characteristic 4 - 20 unlimited.
For the characteristic 4 - 20 unlimited, measuring underranges are
analyzed linearly up to 0 mA, and measuring overranges are analyzed linearly
up to approx. 23 mA by the device.
3. Select the characteristic 4 - 20 NE43.
For the characteristic 4 - 20 NE43, measuring underranges are analyzed linearly
up to 3.8 mA, and measuring overranges are analyzed linearly up to 20.5 mA by the
device.
4. Confirm your entry with OK.
Defining the Start Value
Make sure during configuration that the start value is at least 1% less than the end value.
If the start value does not meet this requirement, the start value will not be accepted by
the device.
1.
Enter the start value as a floating point figure. For entering floating point figures, see
"Entering Floating Point Figures" . The defined unit from the Unit
menu is used as the unit.
2. Confirm your entry with OK.
Make sure during configuration that the end value is at least 1 % greater than the start value.
1. Enter the end value as a floating point figure. For entering floating point figures,
see "Entering Floating Point Figures" . The defined unit from the Unit menu
is used as the unit.
2. Confirm your entry with OK.
Defining the End Value
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