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HART Loop Converter KFD2-HLC-(Ex)1.D(.**)
Display modes and error messages
6
Display modes and error messages
The following appear on the display in normal mode:
•
the current values for HART variables PV, SV, TV, QV in the selected unit and
•
the actual current output values Ch1, Ch2, Ch3 in mA.
•
Please use the
or current output value.
•
To select the units for the measured values see section 8.2.
•
The display is updated every time the HLC receives a HART command 3 message from the field
device.
•
Current output values are displayed as a four-digit number. The decimal point is set to give the best
possible resolution.
•
The floating decimal values for the HART variables are displayed as follows:
− if possible as a four-digit number with decimal point and without an exponent (negative values
have three digits because of minus sign)
− a number may be rounded up (0.3456 appears as 0.346)
− if this display is not possible, the mantissa and exponent are displayed alternately.
If the restart inhibit (see section 8.5.5 and 8.5.7) is triggered but the device continues operating
normally, a corresponding message appears in the second line of the display.
If a fault occurs, one of the following messages is displayed until the fault is rectified:
•
Err device fault (red LED lights up)
•
Err communication error (red LED flashes)
•
Err sensor fault (red LED flashes)
If switching the HLC on/off and checking the cables does not rectify the fault, please contact
Pepperl+Fuchs or the field device manufacturer.
The relays power down when a fault occurs.
For information on the behaviour of the current output in the event of a fault, see section 8.4.4.
14
and
keys to select the displayed measured value
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