January 2012 4.8 Reading or Changing Machine Parameters via PLC Modules 395
Module 9436 Change the numeric value of a machine parameter
permanently
Use Module 9436 to enter a numeric value in the indicated machine
parameter. The value of the machine parameter is overwritten in the run-time
memory, and the new value is stored (persistently) in the *.cfg file,
overwriting the previous value.
The new parameter value takes effect immediately, and is not lost when the
machine is switched off.
Constraints:
The module can only be called in a spawn or submit job.
The module can only be called while the PLC has control over the machine.
Call:
PS B/W/D/K <Name of the config object>
e.g. "CfgPositionLimits"
PS B/W/D/K <Key name>
Key name of the config object, e.g. "PX"
PS B/W/D/K <Name of the machine parameter>
e.g. "swLimitSwitchNeg"
PS B/W/D/K <Index>
Index of the parameter within an array (list field)
0: Parameter without array (list field)
PS B/W/D/K <Factor>
Division factor for conversion to a floating-point number
Enter 1 to receive integer parameters
PS B/W/D/K <New value of machine parameter>
CM 9436
PL B/W/D <Error>
See "Return codes of PLC Modules 9430 to 9433, 9436,
9438 (error stack)" on page 397.
Error recognition:
Marker Value Meaning
NN_GenApiModule
Error (M4203)
0 Machine parameter was written
1 Machine parameter was not written, for
error see W1022 or
NN_GenApiModuleErrorCode
NN_GenApiModule
ErrorCode (W1022)
1 Parameter out of value range
2 Parameter invalid or does not exist, or
other error
3 Invalid string number
6 Changing this value not allowed
13 Error while communicating with the config
server
20 Module was not started from a spawn or
submit job
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