Siemens SINUMERIK 840C - Manual (Page 883)

12 Functional Descriptions 09.95
12.13.4 Machine data for the function ”Setup mode division related”
NC MD 564* bit 4:
Name : Indexing axis
Significance : The indexing functions apply to this axis. The axis can be
a rotary or linear axis.
Bit 4 = 0
: Axis is not an indexing axis
Bit 4 = 1 : Axis is an indexing axis
Standard value : Bit 4 = 0 (for all axes)
Input value limit : 1 ... 999
Active : Every 100 ms
NC MD 5018* bit 4:
Name : Division from PLC
Significance : Bit 4 = 0 : Indexing process not in setup mode
Bit 4 = 1 : Indexing process also in setup mode
Standard value : 0
Active : Every 100 ms
Notes regarding effects of machine data
If the function is used workpiece related, the machine data are altered during workpiece
machining and in setup mode. This is possible by:
• altering the MD from the PLC
• altering the MD during configuring (user memory submodule UMS)
• altering the MD via CL 800
If the machine data are altered during configuring, this can be carried out without using the
installation mode. They become active immediately after they have been altered without a
warm restart or RESET being necessary.
If the indexing machine data are altered during machining with the indexing function, they
become active after approximately 100 ms!
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SINUMERIK 840C (IA)