User guide

5 Function blocks
5.72 L_DevParWriteFix - write parameter
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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 Tip!
The description of FB L_DevParReadFix
provides an application example.
bDone
BOOL
Status output "Write request executed correctly"
• The output remains set until bExecute is reset to FALSE (however, at least for one
task cycle).
TRUE The write request has been executed correctly.
bError
BOOL
Status output "Error"
TRUE An error has occurred during processing.
• For details, please see the status output dnState.
 Note!
The cycle time specified via the input dwCycleTime is only valid for the use of the FB in a
1-ms task! For a longer task cycle the cycle time is extended accordingly:
When the FB is used in the unsolicited task, the cycle time set is not effective. In this case,
use a preceding FB L_TbOscillator
instead to activate the write request cyclically:
• Connect the output bOut of the FB L_TbOscillator
to the input bExecute.
• Set the desired cycle time via the parameters of the FB L_TbOscillator
.
Identifier/data type Value/meaning
Cycle time
dwCycleTime [ms] Task cycle [ms]⋅
1 [ms]
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