User guide

Data, Firmware, and Logs CME 2 User Guide
168 Copley Controls
16.1: Amplifier RAM and Flash Memory
Amplifier RAM holds status data and certain user-entered data during operation. Its
contents are flushed when the amplifier is reset or powered off. Flash memory
permanently stores the data. The contents of flash are loaded into amplifier RAM at
power-up or reset, as described below.
Amplifier RAM
Flash
Volatile. Contents erased when amplifier is
reset or powered off.
Non-volatile. Contents retained when the amplifier is reset
or powered off.
Initial contents read from flash on power-up.
Contents then updated in real time to reflect
certain operational conditions and changes
entered with CME 2 software. At any time, the
user can use CME 2 to restore data from flash
into amplifier RAM.
Modified only by using a Save to Flash tool or by closing
certain screens (Motor/Feedback, Basic Setup, Homing, or
CAN Configuration), whose contents are automatically
saved to flash upon closing of the screen.
As described below, some data resides in flash only, some in amplifier RAM only, and
some in both.
Data Resides In
Data
Flash only
This category includes all data represented on the
Motor/Feedback screen, Basic Setup screen, and CAN
Configuration screen. This data is automatically saved to
flash as soon as its entry is confirmed (when the user
clicks the appropriate Save to Flash button, or closes the
screen).
Flash and amplifier RAM
Includes all user-entered data represented on other
screens, such as gains, limits, and I/O, faults, and regen
settings. Initial values for this data are factory-set in flash.
They are loaded from flash to amplifier RAM with each
power-up or amplifier reset. This data is saved to flash only
when a user clicks the appropriate Save to Flash button. It
is flushed from amplifier RAM with each power-down or
amplifier reset.
Amplifier RAM only
Includes operating status data such as actual position,
actual current, and amplifier temperature. Such data is
never stored in flash. It is flushed from amplifier RAM with
each power-down or amplifier reset.
16.2: Disk Storage of Amplifier and Motor Data Files
At any time, the user can save certain data from amplifier RAM and flash memory to a file
on disk. From the Main screen, the user can save all user-entered data represented on all
screens (the data described as Flash only and Flash and amplifier RAM in the table
above). This data is saved in a Copley Controls amplifier data file with a .ccx filename
extension.
From the Motor/Feedback screen, the user can save all data represented on the
Motor/Feedback screen. This data is saved in a Copley Controls motor data file with a
.ccm filename extension.
A .ccx file can be restored to return the amplifier to a previous state or to copy settings
from one amplifier to another, as described in Copy Amplifier Data (p. 177).