Rockwell Automation 1769-OF4VI Compact I/O Isolated Analog Modules - Manual (Page 67)

Publication 1769-UM014B-EN-P - May 2010
Module Data, Status, and Channel Configuration for the Output Modules 4-15
1769-OF4CI and -OF4VI Fault Value
Using words each channel’s Fault Value word, you can specify the values the
outputs will assume when the system enters the fault mode. The default value
is 0. Valid values are dependent upon the range selected in the range selection
field. If the value you entered is outside the normal operating range for the
output range selected, the module generates a configuration error.
For example, if you select engineering units for the 0 to 20 mA range and enter
a fault value within the normal operating range (0 to 20000), the module will
configure and operate correctly. However, if you enter a value outside the
normal operating range (for example 21000), the module indicates a
configuration error.
TIP
Not all controllers support this function. Refer to your
controller’s user manual for details.
EXAMPLE
 If the default value, 0000, is used and the range selected
is 0 to 20 mA, the module will output 0 mA for all data
formats.
 If the raw/proportional or engineering units format is
selected and zero is entered as Fault Value in the 4 to 20
mA range (for 1769-OF4CI) or the 1 to 5V range (for
1769-OF4VI), a configuration error results.
 See 1769-OF4CI Valid Output Data Table on
page 4-17 and 1769-OF4VI Valid Output Data Table
on page 4-18 for more examples.