Search found 2 matches

by tunayk
Fri Mar 28, 2008 10:17 pm
Forum: SIMATIC system
Topic: [?]: how switch S7 224 CPU Timer ?
Replies: 4
Views: 2652


What kind of switch do you want? Would you like to program depending of real time clock (RTC) or only depending to darknes sensor ? CPU224 has a RTC. You may define some words and hold set time values on them. After that, compare RTC with these words,continuously. If the time is equal to set, you ma...
by tunayk
Sun Mar 23, 2008 9:22 pm
Forum: samples
Topic: [?]: Accessing to MMC from user program (VIPA PLC)
Replies: 1
Views: 7697

[?]: Accessing to MMC from user program (VIPA PLC)

Hi, Probably you know, vipa plc's have special functions (SFC208-215) which are used to access MMC. We may work with created files in MMC like MS-DOS. I have used these functions for recording process data. There is no problem to read and write MMC. But, reading or witing to MMC takes very long time...