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LenzeFpiDrv.lib function library

Functions

3.1 Initialisation (L_Rs232Open)

3−1

LenzeFpiDrv.lib EN 1.1

3 Functions

3.1 Initialisation (L_Rs232Open)

DWORD L_Rs232Open (wDrvNr, dwBaudrate, byNumberOfDataBits,

byNumberOfStopBits, byParity)

The interface must be initialised with the required transfer parameters using this function before it is

possible to work with the FP interface.

Note!

· After the initialisation has been completed successfully, the automation interface (AIF) only

works with the FP interface.

· Other AIF modules (keypad, INTERBUS−S, PROFIBUS−DP, etc.) will only be accepted after

execution of the function L_Rs232Close.

· If this function is called up again, the interface can be changed over to other transfer

parameters. This however results in a cancellation of all existing send and receipt orders!

L_Rs232Open

wDrvNr

dwBaudrate

byNumberOfDataBits

byNumberOfStopBits

byParity

Fig. 3−1 Initialisation (L_Rs232Open)

Transfer parameter

Identifier Data type Possible settings Info

wDrvNr Word 30 AIF interface

dwBaudrate Double Word 600, 1200, 2400, 4800

9600, 19200, 38400

Baud rate

byNumberOfDataBits Byte 7 or 8 Number of data bits*

byNumberOfStopBits Byte 1 or 2 Number of stop bits

byParity Byte 0: None

1: Even

2: Odd

Parity*

* When using 7 data bits, a parity bit will always be created so that the setting No parity"

(byParity = 0) is not admissible!

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Lenze Global Drive PLC Developer Studio User Manual Page 16