Diagnostics Meaning
D300529 0115 - BL67 I/O modules
10-41
BL67-2AI2AO-VI, voltage/current
Table 10-8:
Diagnostics
Measured value out
of range
Indicates an over- or undercurrent of 1 % of the set current range; whereby,
undercurrents can only be recognized with those modules that have a set
current range of 4 to 20 mA.
Output value
out of range
Underrun/overrun of the valid output range (limit values see page 10-27ff.)
Wire break
(only 4-20 mA)
Displays a wire break in the signal line for the operating mode 4 to 20 mA. (I
< 3 m)
Overflow/underflow,
OUFL
(NE 43 only)
The output value lies under or over the set output value and can not be given
out (limit values see page 10-27)
Hardware failure Shows common errors of the module hardware (e.g. CRC-error, calibration
error, …). The return analog value in case of an error is "0".
Module exchange necessary!
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