Technical Reference Manual-XPM3m Revision Date: August 2014
COMPUTER AND CONTROLLER OVERVIEW
Control of the oven is accomplished by:
1. A DELL compatible COMPUTER runs the Oven Control Program. The computer has a serial communication
link with the CONTROLLER on the electrical panel.
2. The CONTROLLER interprets the Computer’s requests to energize, de-energize, or modulate devices or sub-
systems within the oven, then receives or sends the necessary signals. If the required signal (in or out) is 5VDC
or less, it is handled directly by the CONTROLLER. If a 120VAC output signal is needed, the CONTROLLER
communicates with the INPUT / OUTPUT BOARD. The I/O board relays will switch the necessary power for
operation.
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