Sharp PN-L652B Operation Manual - Page 51
Controlling the Monitor with a computer (RS-232C), Computer connection, Communication conditions,
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Controlling the Monitor with a computer (RS-232C) You can control this monitor from a computer via RS-232C (COM port) on the computer. Computer connection Connect with RS-232 straight cable between the computer's COM port (RS-232C connector) and the RS-232C input terminal on the monitor. Computer To COM port Communication procedure nCommand format When a command is sent from the computer to the monitor, the monitor operates according to the received command and sends a response message to the computer. Return code C1 C2 C3 C4 P1 P2 P3 P4 Command field Parameter field (4 prescribed (4 character string comprised of: alphanumerical characters) 0-9, +, -, space, ?) RS-232 straight cable RS-232C (commercially available) input terminal Communication conditions Set the RS-232C communication settings on the computer to match the monitor's communication settings as follows: Baud rate Data length Parity bit 9600 bps 8 bits None Stop bit 1 bit Flow control None Example: VOLM0030 VOLM 30 * Be sure to input 4 characters for the parameter. Pad with spaces (" ") if necessary. (" " is a return code (0DH, 0AH or 0DH)) Wrong : VOLM30 Right : VOLM 30 When inputting a negative value, specify a numerical value in three digits. Example: OFSR-127 When the parameter part is 5 or more characters, specify parameters using a specified number of characters without using spaces. Example: MPOS010097 If a command has "R" listed for "Direction" in the "RS-232C command table" on page 53, the current value can be returned by using "?" as the parameter. Example: VOLM ? ? ? ? 30 ← From computer to monitor (How much is current volume setting?). ← From monitor to computer (Current volume setting: 30). 51 E
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