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LenzeFpiDrv.lib function library

Functions

3.6 Receive status (L_Rs232GetReceiveState)

3−10

LenzeFpiDrv.lib EN 1.1

3.6 Receive status (L_Rs232GetReceiveState)

INT L_Rs232GetReceiveState (wDrvNr, bStateControl)

Use this function to find out about the current status of a receive order and to output the information

according to bStateControl :

If bStateControl is

· FALSE an error code will be sent at reception if an error has occurred. Other the number of

bytes received will be sent.

· TRUE the number of bytes already received will be sent, independently of the number of error

that have occurred.

L_Rs232GetReceiveState

wDrvNr

bStateControl

Fig. 3−6 Receive status (L_Rs232GetReceiveState)

Transfer parameter

Identifier Data type Possible settings Info

wDrvNr Word 30 AIF interface

bStateControl bool (boolean) FALSE Feedback value is receive status

TRUE Feedback value is number of bytes received

Feedback value

bStateControl = FALSE

Data type Value Meaning Priority

Integer

−7 Frame error of the serial interface (incorrect setting of number of stop bits). 2

−6 Overrun error of the serial interface (incorrect setting of baud rate). 3

−5 Parity error of the serial interface (wrong parity setting). 4

−4 Reception aborted since memory is full. 5

−3 TimeOut time has been exceeded or

no reception during the time−out time.

−2 Last reception order not completed yet. 7

−1 Wrong driver number (wDrvNr) or driver not initialised. 1

Note: If errors are caused by several problems, the error cause with the highest priority sends back the

corresponding feedback value. The data already received will also be stored in the receive memory if

the feedback value is negative.

0 ... 32767 Number of data bytes received after end has been recognised.

bStateControl = TRUE

Data type Value Meaning Priority

Double−integer

−1 Wrong driver number (wDrvNr) or driver not initialised. −

0 ... 32767 Number of data bytes received (independent of end or errors).

1 2 ... 20 21 22 23 24 25 26 27

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