TM 1–1520–238–T–3 1–5 1.   Octal  conversion  is  the  transformation  of  direct  octal  read  digits  and  examination  of  selected  bit(s) CONDITION(s). Octal conversion is used when (OCTAL) appears after MEMORY DATA BIT(S) in the respective paragraph. Octal conversion is not required in this manual. Conversions are referenced under CONDITION. EXAMPLE: 16–28 CONDITION:    0=H 1=G 2=F 3=E 4=D 5=C 6=B 7=A 2.   Bit  conversion  is  the  transformation  of  the  octal  number  and  examination  of  bit(s)  CONDITION(s).  Bit conversion is used when (BINARY) appears after MEMORY DATA BIT(S) in the respective paragraph. EXAMPLE: 3–63    SIGNAL NAME: HARS INPUT NOT CHANGING MEMORY LOCATION:    002103 MEMORY DATA BIT(S): 17 (BINARY) CONDITION: (None) SIGNAL FUNCTION: Indicates HARS data is valid. REMARKS:   From DASEC to FCC. PASS: If first digit displayed on HOD is 0, 1, 2, or 3, go to paragraph 3–64. FAIL:    Location of fault: refer to Chapter 6, paragraph 6–14. 3.   To convert from octal, first transform the octal numbers into binary numbers and then note the CONDITION of the bit(s) specified. Assume 062475 is displayed on HOD. EXAMPLE: 0 6th digit 6 5th digit 2 4th digit 4 3rd digit 7 2nd digit 5 1st digit bit X X 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 status 0 1 1 0 0 1 0 1 0 0 1 1 1 1 0 1 Bit 17 CONDITION is a one; therefore a HARS NO GO exists. 4.   Hexadecimal conversion is the interpretation of four bits of binary data. Hexadecimal conversion is used when (HEX) appears after MEMORY DATA BIT(S) in the respective paragraph. Hexadecimal conversion is used for ASCII code conversions. Assume 062465 is displayed on HOD. 0 6 2 4 6 5 BITS X X 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 STATUS 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 0 1 ASCII 3 5 HEXADECIMAL