Sharp PN-K321 Operation Manual - Page 24

Controlling the Monitor with a PC (RS-232C) You can control this monitor from a PC via RS-232C (COM port) on the PC. PC connection Connect the COM port on the PC (RS-232C connector) to the CONTROL terminal (RS-232C input terminal) on the monitor using the RS-232C conversion cable (supplied) and an RS232 straight cable (commercially available). Bind the RS-232C conversion cable with the cable clamp. CONTROL terminal (RS-232C input terminal) Communication procedure nCommand format When a command is sent from the PC to the monitor, the monitor operates according to the received command and sends a response message to the PC. 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, ?) PC To COM port RS-232 straight cable (commercially available) RS-232C conversion cable (supplied) Communication conditions Set the RS-232C communication settings on the PC to match the monitor's communication settings as follows: Baud rate Data length Parity bit * 8 bits None Stop bit 1 bit Flow control None * Set to the same baud rate as the BAUD RATE setting of SETUP menu. (Initial setting: 38400 bps) 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 If a command has "R" listed for "Direction" in the "RS-232C command table" on page 26, the current value can be returned by using "?" as the parameter. Example: VOLM ? ? ? ? 30 ← From PC to monitor (How much is current volume setting?). ← From monitor to PC (Current volume setting: 30). E 24