Character Sets eV+Language User's Guide, v2.x, 18318-000 Rev A Page 225 Charac- ter Deci- mal Value He- x. Val- ue Meaning of Control Character DLE 016 10 Data link escape DC1 017 11 Direct control 1 DC2 018 12 Direct control 2 DC3 019 13 Direct control 3 DC4 020 14 Direct control 4 NAK 021 15 Negative acknowledge SYN 022 16 Synchronous idle ETB 023 17 End of transmission block CAN 024 18 Cancel EM 025 19 End of medium SUB 026 1A Substitute ESC 027 1B Escape FS 028 1C File separator GS 029 1D Group separator