ViewSonic IFP9850 Gen 4 - 98" ViewBoard 4K Ultra HD Interactive Flat Panel IFP - Page 106
Protocol, Set-Function Listing
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Protocol Set-Function Listing The PC can control the Display for specific actions. The Set-Function command allows you to control the Display behavior at a remote site through the RS-232 port. The Set-Function packet format consists of 9 bytes. Set-Function Description: Length: Total Byte of Message excluding "CR" LFD ID Identification for each of Display (01~98; default is 01) ID "99" means to apply the set command for all connected displays. Under such circumstances, only ID#1 display has to reply. The LFD ID can be set via the OSD menu for each Display. Command Type Identify command type, "s" (0x73h): Set Command "+" (0x2Bh): Valid command Reply "-" (0x2Dh): Invalid command Reply Command: Function command code: One byte ASCII code. Value[1~3]: Three bytes ASCII that defines the value. CR 0x0D Set-Function Format Send: (Command Type="s") Name Length ID Byte Count 1 Byte 2 Byte Bytes order 1 2~3 Command Type 1 Byte 4 Command Value1 Value2 Value3 CR 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 5 6 7 8 9 Reply: (Command Type="+" or "-") Name Byte Count Bytes order Length 1 Byte 1 ID 2 Byte 2~3 Command Type 1 Byte 4 CR 1 Byte 5 NOTE: When PC applies command to all displays (ID=99), only the #1 set needs to reply by the name of ID=1. 106