Siemens SINUMERIK 840C - Manual (Page 199)

6 NC Machine Data (NC MD), NC Setting Data (NC SD) 09.95
6.2 General machine data (general data)
Keyswitch-protected R parameters 16, 17
Default value Lower input limit Upper input limit Units
0 0
999 *
1 299 (as from SW 4)
–
Active
at once
Password-protected R parameters 14, 15 Active
at once
Appropriate specifications NC MD 14/15 and/or 16/17 make it possible to protect general and
channel-specific R parameters. Channel-specific specifications apply to all channels. The
parameter area defined in MD 14-15 is password-protected, the area defined by MD 16-17 is
protected via the keyswitch. The latter is effective only when bit 3 of NC MD 5005 is "1". If
exceeded, range MD 16-17 has priority.
Zero offset group (L 960) 18
Default value Lower input limit Upper input limit Units
1 0 10 –
Active
–
MD 18 is of significance in conjunction with Siemens cycle L960 only, and may not be
modified.
Basic angle for nutating head 20
Default value Lower input limit Upper input limit Units
0 0 ±180 000 10 -3 deg
Active
in n. block
Please observe NC MD 5010 (5D tool length compensation).
Number of buffer pairs CP 315-1 24
Default value Lower input limit Upper input limit Units
16 1 16 –
Active on
Power On
Number of buffer pairs CP 231-A 23 Active on
Power On
Number of buffer pairs CP 315-2 25 Active on
Power On
See Computer Link for details.
AP useful data length for CP 315-11-16 27
Default value Lower input limit Upper input limit Units
234 0
256
254 (as from SW 4)
characters
Active on
Power On
AP useful data length for CP 231 26 Active on
Power On
AP useful data length for CP 315-2 28 Active on
Power On
See Computer Link for details.
_______
1) As from SW 4 see Flexible Memory Allocation
6–14 © Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)