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LinMot Drive Configuration over Fieldbus
NTI AG
Parameterization of LinMot servo drives over fieldbus interfaces / 30.06.2016
operating system and the fieldbus interfaces provide independent
access to ROM and RAM values.
When parameters are altered using the LinMot-Talk software, the
ROM and/or the RAM value are affected:
- When 'live' parameters are changed, then the LinMot-Talk software
writes to ROM and RAM memory.
- 'Non-Live' parameters are written only to ROM (and are copied to
RAM at next firmware start).
The LinMot-Talk software reads and displays the ROM values. It
reads the parameter values only once (during the login process). The
PC software allows altering 'non-live' parameters only if the firmware
is stopped.
Over the fieldbus interface the RAM value of 'non-live' parameters
cannot be changed. Changing the ROM value is possible even when
the firmware is running (except for read-only parameters).
Changing the RAM value of a parameter immediately influences the
system behavior when the firmware is running (e.g. control
parameters of the position control loop).
Figure 3: Live Parameters marked with a superscript 'L'
Changes to ROM values don't affect the system behavior until the
next firmware startup (e.g. after a software reset initiated by the
superior control system or stop/start from the LinMot-Talk software).
The RAM value of live
parameters (marked with a
superscript 'L') can be
altered at run time.
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