Building Automation
Industrial Automation
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Bangladesh Distributor
Question
What is binary-coded decimal?
Answer
Binary-coded decimal (BCD) uses binary to express each digit of a decimal number.
Examples:
| Decimal | Binary-coded decimal | |||
| 1 | 2 | 4 | 8 | |
| 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 0 | 0 | 0 |
| 2 | 0 | 1 | 0 | 0 |
| 3 | 1 | 1 | 0 | 0 |
| 4 | 0 | 0 | 1 | 0 |
| 5 | 1 | 0 | 1 | 0 |
| 6 | 0 | 1 | 1 | 0 |
| 7 | 1 | 1 | 1 | 0 |
| 8 | 0 | 0 | 0 | 1 |
| 9 | 1 | 0 | 0 | 1 |
Display on Thumbwheel Switch
| Dial | Output | |||
| 0 | ||||
| 1 | ● | |||
| 2 | ● | |||
| 3 | ● | ● | ||
| 4 | ● | |||
| 5 | ● | ● | ||
| 6 | ● | ● | ||
| 7 | ● | ● | ● | |
| 8 | ● | |||
| 9 | ● | ● | ||
61F-G[]N
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