HEIDENHAIN PWM 20 - Manual (Page 85)

86 HEIDENHAIN ATS Software User's Manual
Third option (no screenshot):
8
Select Yes/No
(check mark in check box = yes, check box empty = no)
Set write-
protection for
memory areas For EnDat encoders there is the possibility of assigning write-protection to memory areas so that
the data are protected from unintended editing. This is necessary, particularly to ensure machine
safety and system reliability.
HEIDENHAIN therefore protects the ”parameters of encoder manufacturer” memory area with
a write-protection bit. Among other information the encoder adjustment data are stored here;
editing these data would render the encoder inoperable.
We recommend setting the appropriate write-protection bit after setting the machine-relevant
parameters in the OEM memory areas and after "datum shift" (operating parameters)!
Example: Setting write-protection
8
When you click this button the data is transferred to the encoder memory and
write-protection is active.
Attention
When you have successfully edited the encoder configuration on your computer, press the
EnDat button to transfer it to the encoder.
Only then will the data in the encoder memory be active. (See “Save encoder configuration
in encoder” on page 81.)
The old data will be overwritten.
We recommend that you back up the "old" encoder configuration!
Attention
The write-protection cannot be reset after the encoder configuration was saved in the
encoder.
Only JH Traunreut or an authorized HEIDENHAIN representation can cancel write-
protection!
means "YES" = Write-protection set.