Lenze 8400 TopLine - Manual (Page 1690)

19 Function library
19.1 Function blocks
1690
Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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19.1.173.3 Function 2: Evaluate rising and falling signal edges
[19-80] Switching performance for function selection "2: High and low edge"
Functional sequence
1. A signal change (FALSE/TRUE edge or TRUE/FALSE edge) at the bIn input sets the bOut output to
TRUE.
2. After the parameterised pulse duration has elapsed, the bOut output is reset to FALSE unless
another signal change has taken place at the bIn input.
• In case of another signal change at the input bIn, the pulse time restarts to elapse, i.e. the
output bOut can be retriggered.
 Pulse duration
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
Œ Œ Œ