CD522FreqScan_PLUS (FB)

FUNCTION_BLOCK CD522FreqScan_PLUS EXTENDS AbbLConCA

Function block to access all IO-Values for the frequency measurement of CD522. This FB is valid to be used with mode 15. Maximum input frequency 5 kHz.

InOut:

Scope

Name

Type

Initial

Comment

Inherited from

Input

Enable

BOOL

FALSE

A rising edge (Enable = TRUE) starts the operation, the output Busy goes to TRUE. All other inputs are read and considered continuously. A falling edge (Enable = FALSE) aborts the operation. During Aborting the Busy is still TRUE. Afterward all outputs are reset.

AbbLConCA

Output

Busy

BOOL

FALSE

Operation is running (while output Error is FALSE)

AbbLConCA

Error

BOOL

FALSE

Operation is stopped with error (while output Busy is FALSE). This output is TRUE for at least one cycle or until Enable is set to FALSE. The output ErrorID gives more details about the error.

AbbLConCA

Input

CntNum

WORD

0

0 or 1, use of counter 0 or counter 1 (Input Z0 or Z1)

EnCnt

BOOL

FALSE

Enable (TRUE) or disable (FALSE) the function of the module

En0

BOOL

FALSE

Enables low pulse for measurement

En1

BOOL

FALSE

Enables high pulse for measurement

EnFreq

BOOL

FALSE

Enables frequency (TRUE) / time measurement mode (FALSE). Result in Freq/Rpm (TRUE) or Dur (FALSE). Maximum input frequency 5 kHz

AdrIn

POINTER TO WORD

0

Address of process image input. See ../Structs/CD522In for more information about structure

AdrOut

POINTER TO WORD

0

Address of process image output. See ../Structs/CD522Out for more information about structure

Output

ErrorID

ERROR_ID

ERROR_ID.NO_ERROR

Error code description

New

BOOL

FALSE

New value available

Dur

DWORD

0

Duration (Time in micro seconds)

Freq

WORD

0

Frequency

Rpm

DWORD

0

Rotation per minute

WarnHighFreq

BOOL

FALSE

Warning: Frequency is to high ( > 5.2 kHz)