NEC LCD4010-BK LCD4010 external control command - Page 2

4. Communication Format Header Message Check Code Delimiter The command packet consists of four parts, Header, Message, Check code and Delimiter. Sequence of a typical procedure to control a monitor is as follows, [A controller and a monitor, two-way communication composition figure] Controller Monitor Get Parameter Delimiter Check Code Message Header Get Parameter Reply Header Message Check Code Delimiter Set Parameter Delimiter Check Code Message Header Set Parameter Reply Header Message Check Code Delimiter Get Parameter Delimiter Check Code Message Header Get Parameter Reply Header Message Check Code Delimiter Save Current Setting Command Delimiter Check Code Message Header The controller sends command to get a value from the monitor that you want to change. The monitor replies a current value of the requested item. The controller sends commands to set an adjusted value. The monitor replies to the controller for confirmation. The controller sends command to get a value for confirmation. The monitor replies an adjusted value. The controller requests to store the adjusted value to the monitor. 4.1 Header block format (fixed length) SOH Reserved '0' Destinatio n Source 1st 2nd 3rd 4th 1stbyte) SOH: Start of Header ASCII SOH (01h) Header Message Check code Delimiter Message Type 5th Message Length 6th -7th 2ndbyte) Reserved: Reserved for future extensions. LCD4010/LCD4610 must be ASCII '0'(30h) 3rdbyte) Destination: Destination equipment ID. (Receiver) Specify a commands receiver's address. This value must match the "Monitor ID No." set in the OSM. (2/37)