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2
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Connection
If the
Transmission Specifications
| • Full duplex |
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| • Start bit | : 1 bit |
4 | • Data bit | : 8 bits |
• Stop bit | : 1 bit | |
| • Parity bit | : None |
| • X parameter | : None |
5 | • Baud rate (Communication speed) | : 9600bps |
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Data Format Specifications
6
This command is executed in the form of
•The communication command always starts with STX (Start of Text) , and ends with ETX
7 | (End of Text) . |
•If the communication format or command name is wrong, NAK (Negative Acknowledgement) will be sent from this product.
•When the communication format is correctly received, this product sends ACK (Normal
8 Acknowledgement).
■Transmission command (PC → Ceiling Presenter)
Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as
9 follows:
| S |
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| Command | Parameter | Data | ||||
(PC) | T | T | |||||
10 | X |
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| X |
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(Ceiling Presenter) | → ACK |
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11 |
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