Rockwell Automation 8520-9API 9/Series OCI API Developer's Guide - Manual (Page 145)

5–34 OCI Data Server CNC Commands
Publication 8520-6.6 - August 1999
TRANSFER_PAL_FROM_PORTB (no argument)
Use this command to restore a PAL image from a peripheral device
attached to the control’s port B. This will restore the PAL image to
RAM.
For example:
[TRANSFER_PAL_FROM_PORTB]
would read the PAL image from the device connected to the control’s
port B. This command will overwrite the PAL image currently in the
control’s RAM. This will not affect the PAL image stored in the
control’s backup memory.
You must cycle power to the control whenever PAL is updated.
Important: This command does not apply to the 9/PC CNC.
TRANSFER_PAL_TO_PORTA (no argument)
Use this command to back up the current PAL image (and its source
code if present on the control) to a device connected to the control’s
portA. This will back up the PAL image currently in RAM. This
may or may not be the same image stored in the control’s backup
memory.
For example:
[TRANSFER_PAL_TO_PORTA]
would write the PAL image to the device connected to the control’s
port A. This backup file is not in a man–readable format. If you
require a man–readable version of PAL refer to the ODS document
utility. Use the command TRANSFER_PAL_FROM_PORTA to
retrieve an PAL image from a peripheral device.
Important: This command does not apply to the 9/PC CNC.