Festo IIFB11-02 Series, Manual

Page: 157 / 210

Status bits
The status bits signalize internal errors of the
valve sensor terminal. The following faults are
recognized:
•
undervoltage valves/outputs
< 21.6 V
•
undervoltage valves/outputs
< 10 V
•
short circuit/overload on at least one
electrical output
•
undervoltage sensor supply
< 10 V
Further details can be found in chapter 5
"Diagnosis and error treatment" (section Status
bits).
The status bits are treated and transferred like
inputs. They always occupy the two highest-
value addresses of the available address range.
If the inputs of the input addresses thereunder
are not used, the valve terminal will set them at
"logic zero".
VIFB11 - 02 5. Commissioning
9902d
5-61