Rockwell-automation 1560E SMC Flex Smart Motor Controller Uživatelský manuál Strana 86

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4-6 Programmi
1560E-UM050B-EN-P - June 2013
Parameter Management Before you begin programming, it is important to understand how the
controller memory is:
structured within the SMC-Flex controller
used on power-up and during normal operation
Refer to Figure 4.3 and explanations below.
EEPROM RAM ROM
Figure 4.3 – Memory Block Diagram
Random Access Memory (RAM)
This is the work area of the controller after it is powered up. When you
modify parameters in the Set Up mode, the new values are stored in RAM.
When power is applied to the controller, parameter values stored in the
EEPROM are copied to RAM. RAM is volatile and the values stored in
this area are lost when the controller is powered down.
Read-only Memory (ROM)
The SMC-Flex controller comes with factory default parameter values.
These settings are stored in nonvolatile ROM and are displayed the first
time you enter the Program mode.
Electrically Erasable Programmable Read-only Memory (EEPROM)
The SMC-Flex controller provides a nonvolatile area for storing user-
modified parameter values in the EEPROM.
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