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If the value of a variable is to be used, the notation must be as follows:
■
The variable name must be preceded by the dollar sign ($).
■
Variable names consisting of multiple characters must be put in braces.
If the variable name consists of a single character, no braces are necessary.
Note that when braces are omitted for multicharacter variable names, the first character after
the “$” is interpreted as the variable name.
8.8
Adapting Settings
The properties of the E-871.1A1N and the mechanics connected are stored in the E-871.1A1N
as parameter values.
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
Write permission for the parameters is determined by command levels.
Each parameter is in the E-871.1A1N's volatile and nonvolatile memory. The values in the
nonvolatile memory are loaded to the volatile memory as default values when switching on
or rebooting the E-871.1A1N. 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.
Use the
command to query the parameters available in the E-871.1A1N.
The following parameters are available in the E-871.1A1N for compatibility reasons only:
■
Kvff (0x5)
■
Motor Offset Positive (0x33)
■
Motor Offset Negative (0x34)
■
Motor Drive Offset (0x48)
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 E-871.1A1N and take effect immediately. Unsuitable
parameter settings can cause damage to the mechanics.
►
Change parameter values only after careful consideration.
►
Save the current parameter values to the PC before you make changes in the nonvolatile
memory.
8.8.1
Parameter Commands
The following general commands are available for changing parameters:
8 E-871.1A1N FUNCTIONS
PZ285EN
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