To use DBCS characters in a panel field, you should code the Start Field Extended Instruction (X'29') with the Shift-In Shift-Out Attribute pair. The pair is coded X'FE01'.

If you are sending panels to a Katakana device, note that lower case English characters become Katakana characters on Katakana devices. If you want to use English Language panels, those panels should contain uppercase English characters only.