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2

3

Connection

If the RS-232C cable is not correctly connected between this product and the PC, no acknowledgement is transmitted. Connect the RS-232C cable correctly, and fix it firmly with the connector set screws before the operation.

Transmission Specifications

 

• Full duplex start-stop sync. mode

 

 

• 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

 

 

Data Format Specifications

6

This command is executed in the form of 1-command/1 packet. The next command is not accepted until the previous processing is completed.

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

 

 

 

 

 

E

 

Command

Parameter

Data

(PC)

T

T

10

X

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

(Ceiling Presenter)

ACK

 

 

 

 

 

 

11

 

 

 

 

 

 

 

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Elmo HV-C1000XG instruction manual Connection, Transmission Specifications, Data Format Specifications