1. Communication Parameters
Communication method | |
Synchronous method | Asynchronous |
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Baud rate | 9600bps |
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Character length | 8bit |
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Parity | None |
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Start bit length | 1bit |
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Stop bit length | 1bit |
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Flow control | None |
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2. Pin Assignment
Monitor side | Host side | ||||||||
5 | 4 | 3 | 2 | 1 | 5 | 4 | 3 | 2 | 1 |
| 9 | 8 | 7 | 6 |
| 9 | 8 | 7 | 6 |
_ External view _ | _ External view _ | ||||||||
Pin No. | Function | Pin No. | Function | ||||||
| 1 |
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| NC |
| 1 |
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| NC |
| 2 |
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| TXD |
| 2 |
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| RXD |
| 3 |
| RXD |
| 3 |
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| TXD | |
| 4 |
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| NC |
| 4 |
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| NC |
| 5 |
| GND |
| 5 |
| GND | ||
| 6 |
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| NC |
| 6 |
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| NC |
| 7 |
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| NC |
| 7 |
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| NC |
| 8 |
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| NC |
| 8 |
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| NC |
| 9 |
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| NC |
| 9 |
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| NC |
3. Communication Data Format
(a) Control message
No. | Item | Value |
1 | Header | 0x8C: Control |
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2 | Category | 0xXX |
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3 | Function | 0xXX |
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4 | Data1 (Length) | 0xXX |
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5 | Data2 (Data1) | 0xXX |
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: | : | 0xXX |
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: | : | 0xXX |
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X | DataX | 0xXX |
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X+1 | Check Sum | 0xXX |
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*Check Sum: Sum total of 1 to X. Lower
*Set the command interval to 500 ms or more when transmitting the Control command continuously.
*Set the command interval to 500 ms or more when transmitting the same command (Enquiry) after the Control command.
(b) Enquiry message
No. | Item | Value |
1 | Header | 0x83: Enquiry |
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2 | Category | 0xXX |
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3 | Function | 0xXX |
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4 | Data1 | 0xFF |
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5 | Data2 | 0xFF |
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6 | Check Sum | 0xXX |
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*Check Sum: Sum total of 1 to X. Lower
1 |