Lenze ETC Motion Control Manual do Utilizador descarregar pdf (Página 390)

PLC programming

Library

FILE IO functions

8.8

8.8.3

390

EDSTCXN EN 2.0

8.8.3.13 Device driver

The control supports different devices with write (w), and for some devices,

read (r) access. The access takes place via a file system. A file must be opened

using the function SysOpenFile() before it can be accessed. With the

exception of the device "Printer" several files can be opened simultaneously

on a device. In total four simultaneously opened files are possible. The file

names must comply with the DOS 8.3 convention, i.e. must contain a

maximum of 8 characters for the file name and 3 characters for the file

extension (no special characters must be used).

Device ID Access Description

Silicone disk SD rw This driver allows access to the Flash PROM of the

control.

RAM Disk RD rw This driver allows access to the so−called RAM Disk

(battery buffered RAM).

Net Disk ND rw This driver allows access to the hard drive of a PC. The

device can only be used if the control has an Ethernet

interface. On the PC the Lenze ETC Data Server must

have been started. The PLC can access the directory

which has been entered into the configuration file of

the server. To create the connection between the

control and the PC the control given the IP address of

the PC via the function SetCurrentPath(). For this it is

necessary to enter a fixed IP address in the network

settings of the PC.

PC Disk PC rw This driver allows access to the hard drive of a PC. The

device can only be used if an application is running on

the PC which uses the Lenze Gateway (e.g. ETC MMI).

Using the Gateway configuration software a directory

can be defined which the PLC can access.

Program memory

(only ETCxC)

PS W This driver allows DIN programs to write tot he

internal DIN program memory via the PLC. It must be

ensured that the file name must also be identical to

the program number, therefore the DIN program must

not contain a program number (with % command).

Example: SysOpenFile(’PS:12.din’, O_WRONLY); opens

a DIN program with the program number %12.

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ama 11 Jan 2025 | 19:35:39

rasha

Lenze ETC Motion Control Manual do Utilizador Página 390

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