Ram And Rom Operations - Panasonic FP-M Hardware Manual

5-6. RAM and ROM Operations

1. RAM and ROM Operations

• The program may be downloaded and saved to RAM on the FP-M control board or to memory (EPROM) or master
memory (EEPROM).
• Use of the RAM and EPROM/EEPROM memory makes it easy to reproduce and transfer programs.
Operations
RAM operation: Operation with installed RAM
ROM operation: Operation with memory (EPROM) or master memory (EEPROM)
Item
Memory RAM on the control board
9600
19200
Execution of The built-in program is executed.
program
Backup The contents of RAM are saved using the
backup battery.
Note:
Replace the backup battery when voltage
of the battery is low. (See page 125.)
• Battery life
FP-M C20R, C20T, and C32T:
Approx. 53,000 hrs.
FP-M C20RC, C20TC, and C32TC:
Approx. 27,000 hrs.
RAM operation
RAM
(BATT.)
EPROM EEPROM
V0 V1
RUN PROG. ERR ALARM.
RUN REMOTE PROG.

5-6. RAM and ROM Operations

ROM operation
Memory (EPROM) or master memory
(EEPROM)
V0 V1
9600
19200
When the mode is changed from PROG. to RUN
or the power is turned ON in the RUN mode, the
contents of ROM are loaded into the RAM on the
FP-M control board and the program is executed.
Necessary tools
• Memory (EPROM): AFP5202
• Master memory (EEPROM): AFP5207
• Commercially available ROM programmer:
We recommend Aval Data Corporation's
"PECKER 11"
Since the contents of the program and system
registers are written to ROM, backup is not
necessary. The hold area contents written to
RAM are backed up by the backup battery.
Install EPROM/EEPROM
RAM
EPROM EEPROM (BATT.)
RUN PROG. ERR ALARM.
RUN REMOTE PROG.
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