CONTROL BOARD FOR REVISING FIRMWARE OF SAFETY CLASS CONTROLLING APPARATUS AND SAFETY CLASS CONTROLLING APPARATUS USING THE SAME

摘要

An object of the present invention is to provide a control board for firmware modification of a safety level control device and a safety level control device using the same, which can be downloaded from a PC to a microprocessor only when a normal security key is installed. To this end, the control board for firmware modification of the safety level control device according to the present invention includes: a main board on which a firmware receiving unit performing communication with a firmware providing device and a microprocessor for downloading firmware are mounted; And a connector mounted on the main board, wherein a security key is attached to and detached from the firmware receiving unit and the microprocessor, and communication between the firmware receiving unit and the microprocessor is performed by the security key. When made, the firmware transmitted from the firmware providing device is transmitted to the microprocessor through the firmware receiving unit.