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First ensure you have the memory pack installed in the 8005PR4's PROM burner socket.
To read a program from the SY/MAX model 50 controller's memory pack to the 8005PR4 enter the following sequence: PROM, READ.
Once "PROM READ GO?" is displayed press the ENTR key. "PROM READ" is displayed during execution.
When completed "PROM READ END" is displayed.
To write a program from the 8005PR4 to the SY/MAX model 50 controller's memory pack enter the following sequence: PROM ENTR.
Once "PROM WRIT GO?" is displayed press the ENTR key. "PROM WRIT" is displayed during execution.
When completed "PROM WRIT END" is displayed.