January 2012 4.8 Reading or Changing Machine Parameters via PLC Modules 389
4.8 Reading or Changing Machine Parameters via PLC Modules
Modules 9430 to 9433, 9436 and 9438 can be used to read or overwrite
machine parameters via the PLC.
Use Module 9430 to overwrite the numerical value of a machine parameter
temporarily. The value of the parameter is only overwritten in the run-time
memory. The value stored in the *.cfg file is retained. The original value
becomes effective again the next time the control is started.
Use Module 9431 to read the numerical value of a machine parameter from
the run-time memory.
Use Module 9432 to overwrite any string in the machine configuration
temporarily. Only the currently effective string parameter in the run-time
memory is overwritten. The string stored in the *.cfg file is retained. The
original value becomes effective again the next time the control is started.
Use Module 9433 to read any string from the run-time memory.
Use Module 9436 to save the numerical value of a machine parameter
permanently. The value written with Module 9436 is stored in both the run-
time memory and the *.cfg file. The change is retained in the nonvolatile
memory when the control is switched off.
Use Module 9438 to save any string in the machine configuration
permanently. The string written with Module 9438 is stored in both the run-
time memory and the *.cfg file. The change is retained in the nonvolatile
memory when the control is switched off.
HEIDENHAIN recommends:
Use the Modules 9436 and 9438 very carefully and perform intensive tests
on the PLC program. Changes made using these modules might affect the
machine configuration to such an extent that the MANUALplus 620 cannot
be started properly anymore.
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