Panasonic PT-D4000U Operating Instructions - Page 48
Using the serial terminals
UPC - 791871111529
View all Panasonic PT-D4000U manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 48 highlights
Using the serial terminals The main unit is equipped with SERIAL terminals located in its terminal section on the side, and this terminal is compliant with RS-232C. Also a serial output terminal is provided to enable plural projector control. Examples of connection Single projector Plural projectors PC D-Sub 9-pin (female) D-Sub 9-pin D-Sub 9-pin (female) (male) D-Sub 9-pin D-Sub 9-pin (female) (male) PC D-Sub 9-pin (male) Communication cable D-Sub 9-pin D-Sub 9-pin D-Sub 9-pin (male) (female) (male) Communication cable Communication cable Pin assignments and signal names Pin No. Signal name D-Sub 9-pin (female), external appearance TXD Description NC Send data RXD Receive data Connected internally GND Ground NC CTS RTS Connected internally Serial input terminal NC D-Sub 9-pin (male), external appearance Serial output terminal Pin No. Signal name Description NC RXD Receive data TXD Send data NC GND Ground NC RTS Connected internally CTS NC Communication conditions (Factory setting) Signal level Synchronization method Baud rate Parity Character length Stop bit X parameter S parameter RS-232C compliant Start-stop synchronization 9 600 bps None 8 bits 1 bit None None Basic format Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent in this order. Add parameters according to the details of control. STX A D I 1 I 2 ; C1 C2 C3 : P1 P2 ... Pn ETX (2 bytes) Two ID characters (2 bytes) Semicolon (1 byte) Colon (1 byte) Start ZZ, 1 to 64 and 0A to 0Z 3 command (1 byte) ID designate characters (3 bytes) End (1 byte) Parameter (undefined length) Attention • If a command is sent within about 60 seconds after the lamp is turned on, the response may be returned late or the command may be unable to be executed. Try sending and receiving commands after 60 seconds has elapsed. • When sending several commands, be sure to wait for more than 0.5 seconds after receiving a response from the projector, and then send the next command. When sending commands without parameters, a colon (:) is not necessary. Note 48 • If a command cannot be executed, the projector will send an "ER401" response to the computer. • If an invalid command is received, the projector will send an "ER402" response to the computer. • Projector ID supported on the RS-232C interface is ZZ (ALL) and a group of 1 to 64 and 0A to 0Z. • If a command is sent with a projector ID specified, the projector will return answer back only in the following cases: if it coincides with the projector ID, ID specification is ALL and VPS-SYSTEM is the master, or ID specification is group and Group is the master. • In the hexadecimal format, STX has the character code 02 and ETX the character code 03.