Schneider Electric 840 USE 106 0 Changing the Program and Performing a Program Update, Updating

Maintenance

Changing the Program and Performing a Program Update

Updating the	The program includes the configuration table, I/O map, configuration extensions,
Primary and	segment scheduler, all .EXE loadables and the entire state RAM, including user
Standby	ogic.

Note: Program downloads:

lChange program means: a complete program change.

Update program means: to update the user logic

If you reprogram your Primary controller or replace the Standby controller, you may use the update feature to copy the full program of the Primary controller to the Standby. This feature not only saves time, but also ensures that the controllers have identical user logic.

If program changes include any of the above, or replacing the Standby controller, the Standby must be in dim awareness before a keyswitch update can be performed

Note: A program update can only be performed from the Primary controller to the Standby. The Standby controller cannot update the Primary.

Note: To put the Standby into dim awareness, remove the battery for at least 5 minutes.

CAUTION

Battery Hazard

Whenever installing a new controller, be sure its battery has been disconnected for at least five minutes.

Failure to follow this precaution can result in injury or equipment damage.

194 840 USE 106 00 January 2003