Case: The operating system of the controller JC-24x is defective. Next step required: Send the operating system to the IPL. Warning! The operating system cannot be sent to the same IP address by which the controller was addressed previously. Alternatives: Option 1: Serial for boot loader version 9.04.00.00 Option 2: Via Ethernet for boot loader version 7.x ... In this case, the controller must have got IP address 192.168.10.15 (all DIP switches are in zero position (0))