Lenze E94A - Manual (Page 626)

5 Function blocks
5.203 L_TbTransition - edge evaluation
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.203.1 Function 1: Evaluating rising edges
C04000 = "0"
[5-150] Switching performance when evaluating rising edges
Functional sequence
1. A FALSE-TRUE edge at the input bIn sets the output bOut to TRUE.
2. After the time specified via C04001 the output bOut is reset to FALSE provided that no other FAL-
SE/TRUE edge has taken place at the output bIn in the meantime.
• If another FALSE/TRUE edge takes place at the bIn input, the time C04001 restarts to elapse,
i.e. the output bOut is retriggerable.
5.203.2 Function 2: Evaluating falling edges
C04000 = "1"
[5-151] Switching performance when evaluating falling edges
Functional sequence
1. A TRUE-FALSE edge at the input bIn sets the output bOut to TRUE.
2. After the time specified via C04001 the output bOut is reset to FALSE provided that no other
TRUE/FALSE edge has taken place at the bIn input in the meantime.
• If another TRUE/FALSE edge takes place at the bIn input, the time C04001 restarts to elapse,
i.e. the output bOut is retriggerable.
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
C04001 C04001 C04001
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
C04001 C04001 C04001