Search found 2 matches
- Fri Mar 28, 2008 10:17 pm
- Forum: SIMATIC system
- Topic: [?]: how switch S7 224 CPU Timer ?
- Replies: 4
- Views: 3349
Timer
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...
- Sun Mar 23, 2008 9:22 pm
- Forum: samples
- Topic: [?]: Accessing to MMC from user program (VIPA PLC)
- Replies: 1
- Views: 8747
[?]: 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...