6 Assi
nin
Parameters to the Control and the PLC Pro
ram
6
03.96
6.8 Scaling machine data
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
S As an alternative to the options listed above, an MD block can also be
loaded twice (via V24), with an NCK start-up in each case.
Note
If a scaling MD is altered, then the control outputs alarm “4070 Scaling data
changed”.
Standard machine data can be loaded in several ways.
S Set switch S3 to position 1 on NCU module and initiate NCK reset.
Note
During this operation, the complete SRAM on the NCU module is re-initialized.
All user data are erased.
S MD 11200: INIT_MD (loading standard MD during “next” power-up)
By entering certain values in MD: INIT_MD, it is possible to load various data
areas with default values when the NCK next powers up. The machine data is
displayed in HEX format. After MD: INIT_MD has been set, “Power ON” must be
executed twice:
S The MD is activated when the power is switched on the first time.
S The function is executed and the MD reset to “0” when the power is
switched on the second time.
Value “0”
The stored machine data MD are loaded during the next power-up.
Value “1”
On the next power-up, all machine data (with the exception of the memory con-
figuring data) are overwritten with default values.
Value “2”
On the next power-up, all MDs that configure the memory are overwritten with
default values.
Value “4”
reserved.
Standard data
Meaning of input
values in MD11200
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