Product overview
EL28xx-xxxx
39
Version: 2.2
) / DIG Safe State Value (index
)
The setting in “DIG Safe State Active” (index 0x80n0:01) defines whether the outputs should assume a safe
state in the case of a bus error. The safe state of the output in the case of a bus error is defined with “DIG
Safe State Value” (index 0x80n1:01).
1.
“DIG Safe State Active“ = TRUE and
◦
“DIG Safe State Value“ = TRUE
: the output is switched on.
2.
“DIG Safe State Active“ = TRUE and
◦
“DIG Safe State Value“ = FALSE
: the output is switched off
3.
“DIG Safe State Active“ = FALSE
◦ The state of the output is retained. Entries in “DIG Safe State Value” (index 0x80n1:01) have no
effect.
Flow-chart illustration of the sequence in case of a bus error
Fig. 30: EL2819 Change of state of the outputs in the case of a bus error
