Siemens SINUMERIK 840D sl Commissioning Manual page 163

08/2005
CHK_FILE_EXIST=ram
ram This control flag: specifies whether configuration files must be copied
each time by the NC or whether a check must be made as to whether the
files are already stored on the RAM drive of the HMI, HT6.
Possible values:
0:
A check whether the file already exists on the RAM drive is not carried
out. A search is made for the file in the following directories according to
the order shown:
- NC user cycles directory
- NC manufacturer cycles directory
- NC standard cycles directory
- NC comments directory
- HMI Embedded, HT6 Flash file system
This mode is only set while the configuration files are being set up online
on the NC. Changes to configuration files in the NC then become
operative immediately on the HMI, HT6, slowing down the display
building process.
1:
Default setting (if CHK_FILE_EXIST has not been set):
The configuration files are read once into the RAM and executed
thereafter from there. This means that Runtime is improved, but there is
no reaction to changes in the configuration files in the NC.
LOGSIZE=kB
KB Size of the LOG file in KB (max. size = 64 KB). A LOG file named
ERROR.COM is created on the RAM disk of the HMI/HT6; its size is
determined by this parameter setting.
RAMDISK_SIZE = kBrd
kBrd Size of available RAMDISK in KB.
RAMDISK_SIZE can be located at any position - within or outside the
sections. If the element occurs several times, then the first occurrence is
relevant.
Example:
RAMDISK_SIZE=200
The standard value (if the element RAMDISK_SIZE was not specified) is
100 KB.
The default value is 300 KB.
If, after copying, the selected size has been exceeded, all of the COM
files in the RAM disk directory are deleted before the next copying
operation. (Files for screen forms in the background (for operating area
change) are still kept.)
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D HMI Installation and Start-Up Guide (IAM) – 08/2005 Edition
Expanding the Operator Interface (BE1)
7 Configuring and Working Environment
; 200 KB
BE1/7-157