Lenze 8400 StateLine - Manual (Page 985)

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
985
17 Function library
17.1 Function blocks
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
17.1.44.1 Function 0: Evaluate rising signal edges
[17-24] Switching performance for function selection "0: High edge"
Functional sequence
1. A FALSE-TRUE 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 FALSE/TRUE edge has been set at the bIn input.
• If an additional FALSE-TRUE edge occurs at the bIn input, the pulse duration starts again from
the beginning, i.e. the bOut output can be retriggered.
17.1.44.2 Function 1: Evaluate falling signal edges
[17-25] Switching performance for function selection "1: Low edge"
Functional sequence
1. A TRUE-FALSE edge at the bIn inputs sets the bOut output to TRUE.
2. After the parameterised pulse duration has elapsed, the bOut output is reset to FALSE unless
another TRUE/FALSE edge has been set at the bIn input.
• If an additional TRUE-FALSE edge occurs at the bIn input, the pulse duration starts again from
the beginning, i.e. the bOut output can be retriggered.
 Pulse duration
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
Œ Œ Œ
 Pulse duration
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
Œ Œ Œ