88 Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Chapter 4 Programming
RAM (Random Access Memory)
RAM is the work area of the module after it is powered up. The SMC-50 control
module uses an Auto Store feature when programming parameters. When
parameters are modified in the program mode, the new values are stored
immediately in RAM and then in EEPROM (
Electrically Erasable Programmable
Read-only Memory)
, once the enter key has been pressed. If control power is lost
before the enter key is pressed, these values are lost. When the device powers up, it
copies the values from the EEPROM area of memory into RAM.
ROM (Read-only Memory)—Set Defaults
The SMC-50 control module comes with factory default parameter values.
These settings are stored in non-volatile ROM and are displayed the first time
you enter the Program mode via the Linear List or File-Group mode using the
HIM. To restore factory parameter defaults:
1. Navigate to the Memory folders screen with Port <00> displayed.
2. Select/highlight the Set Defaults line, then press ENTER (#5). The
following text is displayed: WARNING: Sets all Parameters to factory
defaults. Continue?
3. Press the ENTER soft key to change defaults or the ESC soft key to return
to the previous screen.
TIP Option modules can also be restored to defaults using this method. Ensure
its respective port number is displayed.
TIP You can also restore factory defaults by using the Parameter Management,
Parameter 229, available in the Utility File-Group.
HIM CopyCat
Set Defaults
AUTO
F
00
Stopped
0 Amps
Allen-Bradley
ESC
MEMORY
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