Toshiba TLP511E, TLP510E manual RS-232C Control Method, 15-1 RS-232C connection signals, Conditions

5-15. RS-232C Control Method

Signals are connected to the RS-232C connector in a straight format as shown in Table 5-15-1 RS-232C connection signals. This is because a crossing connec- tion is provided inside the unit. Communication condi- tions are set to meet the conditions given in Table 5-15-2.

Table 5-15-3 shows the command list of RS-232C.

When transmitting the command, be always sure to keep 100 ms interval between each command. Moreover, the process time is required for a while when turning the power ON/OFF and/or selecting the input mode. So in such cases, also be always sure to keep enough intervals between the commands.

Table 5-15-1 RS-232C connection signals

Pin No.	Signal name	Signal content	I/O
2	RXD	Receive data	I
3	TXD	Transmit data	O
4	DTR	Data terminal ready	O
5	S. G	Signal ground	I
6	DSR	Data set ready	I
7	RTS	Transmission request	O
8	CTS	Transmission enable	I

	Table 5-15-2 RS-232C communication conditions
Item	Conditions
Communication system	Transmission speed 9600 baud, No parity, Data length 8 bit, Stop bit: 1 bit
Communication type	STX (1 byte) + CMD (3 byte) + ETX (1 byte) = 1 block
	STX is 02h, ETX is 03h, CMD is command string (Uppercase character)

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