Fault Message - Pepperl+Fuchs KFD2-HLC-Ex1.D Series Manual

HART Loop Converter KFD2-HLC-Ex1.D(.**)
Operation
Display Options for Current Output Values and HART Variables
• To select the displayed measured values or current output values, use the  and 
buttons.
• To select units for measured values, use the Unit menu. See chapter 3.5.5.
• Every time the isolated barrier receives a HART command 3 message from the field
device, the display is updated.
• The isolated barrier displays the current output values as a four-digit number. The
decimal point is set to provide the best possible resolution.
• The isolated barrier shows the floating point value for HART variables as follows:
• If possible, as a four-digit number with decimal point and without exponent.
Negative values are shown on the device with three digits because of the minus
sign.
• A digit is rounded as necessary. For example, the number 0.3456 is shown as
0.346.
• If the isolated barrier cannot show the floating point value, the mantissa and
exponent are shown in alternation.
4.2

Fault Message

The following table shows which fault message the current outputs send to the controller,
based on the characteristic.
Setting
down
up
hold
Table 4.2
4 - 20 unlimited
0 mA
Cannot be distinguished from falling
below the start value
approx. 23 mA
Cannot be distinguished from the end
value being exceeded
Last measured value before the fault
4 - 20 NE43
2.0 mA
21.5 mA
EN
EN - 49