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ifm
Programming Manual
ecomatmobile
CabinetController (CR0301) Runtime System V05
2016-04-21
ifm function elements
ifm function elements for the device CR0301
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PT1
338
Unit type = function block (FB)
Unit is contained in the library
ifm_CR0301_Vxxyyzz.LIB
Symbol in CODESYS:
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Description
341
PT1 handles a controlled system with a first-order time delay.
This FB is a proportional controlled system with a time delay. It is for example used for generating
ramps when using the PWM FBs.
The output of the FB can become instable if T1 is shorter than the SPS cycle time.
The output variable Y of the low-pass filter has the following time characteristics (unit step):
Figure: Time characteristics of PT1
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Parameters of the inputs
342
Parameter
Data type
Description
X
INT
Input value [increments]
T1
TIME
Delay time (time constant)
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Parameters of the outputs
343
Parameter
Data type
Description
Y
INT
output value
Summary of Contents for Ecomat 100 Mobile CR0301
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