9 Adapting Settings
C-863.12 Mercury Controller
MS249E
Version: 1.2.1
231
9.1
Settings of the C-863.12
The properties of the C-863.12 and the connected positioner are stored in the C-863.12 as
parameter values (e.g., settings for the servo algorithm (p. 21)).
The parameters can be divided into the following categories:
▪
Protected parameters whose default settings cannot be changed
▪
Parameters that can be set by the user to adapt to the application
The write permission for the parameters is determined by command levels.
Every parameter is in the volatile as well as in the nonvolatile memory of the C-863.12. The
values in the nonvolatile memory are loaded to the volatile memory as default values when
switching on or rebooting the C-863.12. The values in the volatile memory determine the
current behavior of the system.
The designation "Active Values" is used for the parameter values in the volatile memory and
"Startup Values" is used for the parameter values in the nonvolatile memory in the PC software
from PI.
9.2
Changing Parameter Values in the C-863.12
NOTICE
Unsuitable parameter settings!
The values in the nonvolatile memory are loaded to the volatile memory as default values
when switching on or rebooting the C-863.12 and take effect immediately. Unsuitable
parameter settings can cause damage to the connected mechanics.
➢
Change parameter values only after careful consideration.
➢
Save the current parameter values to the PC (p. 233) before you make changes in the
nonvolatile memory.
INFORMATION
The number of write cycles in the nonvolatile memory is restricted by the limited lifetime of
the memory chip (EEPROM).
➢
Overwrite the default values only when it is necessary.
➢
Save the current parameter values to the PC (p. 233) before you make changes in the
nonvolatile memory.
9
Adapting Settings