Table 7-1. Control characters
| ASCII-HEX | Control Sign | Comments |
|---|---|---|
| 02 | <STX> | Start of text |
| 03 | <ETX> | End of text |
| 04 | <EOT> | End of transmission |
| 05 | <ENQ> | Enquiry |
| 06 | <ACK> | Positive acknowledge |
| 15 | <NAK> | Negative acknowledge |
| 20 | Space | |
| 2D | - | Minus sign |
| 2E | . | Decimal point |
| 3E | > | Greater than |
| 30 | 0 | |
| 31 | 1 | |
| 32 | 2 | |
| 33 | 3 | |
| 34 | 4 | |
| 35 | 5 | |
| 36 | 6 | |
| 37 | 7 | |
| 38 | 8 | |
| 39 | 9 |