Fig. 26 Change Of State Of The Outputs In The Case Of A Bus Error - Beckhoff EL2124 Documentation

DIG Safe State Active (index 0x80n0:01 [} 35]) / DIG Safe State Value (index 0x80n1:01 [} 35])
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. 26: Change of state of the outputs in the case of a bus error
EL20xx, EL2124
Product overview, digital output terminals
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