Multi-Function Switch/Button S1; File System - KEB COMBICONTROL C5 Instruction Manual

COMBICONTROL
2.8

Multi-function switch/button S1

The multi function switch/button is constructed as follows:
The button S1 is assigned with the following functions
Activity
Stop --> Run
Run --> Stop
Stop --> Clear and hold (> 3 s) until
ERROR LED lights
Stop --> Clear and hold (> 10 s) until
ERROR and RUN LED light
2.9

File system

The file system consists of an internal flash memory (drive C:). Access can occur via CoDeSys
or directly from the program of the control.
Internal flash memory
This memory is accessed as drive C: and the boot project can be stored, which is automatically
loaded and started when switching on. Any other files (documentation, download lists, prescrip-
tions, etc.) can be stored and read here. The following particularities must be observed:
• Access is possible only to files in the root directory.
• Only short file names (8.3 format) are possible.
• Reading takes place with high speed and can occur also at any time in the time-critical
cyclic operating modes of the control.
• Writing occurs at a slow rate, because the flash must be programmed here. Any data can
be written if the control is in stop condition, but only one file can be opened for writing. If
the control is in run condition, only blocks of max. 32KByte can be written into the opened
file. As soon as this block was completely stored in the background the next data can be
written.
• Data is not physically deleted. First they are internal marked as deleted. Thus the free availa-
ble memory space decreases. The command "fileformat" can be used via the CoDeSys PLC
browser. Thus the complete memory is formatted again. All data is irrevocable deleted.
• The deleted memory space can be make available again with the command "filecleanup"
without reformatting.
GB - 16
run (switch)
stop/reset
clear (button)
Function
Program is started
Programm is stopped, all variables are resetted
(reset warm)
After releasing the switch all retain variables are
resetted (reset cold)
All variables and the boot project are cleared (re-
set origin) after releasing the button.