NEC X461HB P401 : RS232 codes for X461UN, X461HB, X431BT, P401, P461, P521, P5 - Page 40

1) The controller requests the monitor to set the condition of security lock. Header Message Check code SOH-'0'-MonitorID-'0'-'A'-'1'-'0' STX-'C'-'2'-'1'-'D'-EN-P1-P2-P3-P4-ETX BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID of which you want to change a setting. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is "Command". '1'-'0'(31h, 30h): Message length Message STX (02h): Start of Message 'C'-'2'-'1'-'D' (43h, 32h, 31h, 44h): Security Lock Control command EN-P1-P2-P3-P4: Lock condition control data EN: Enable /Disable '0'-'0'(30h, 30h): Disable '0'-'1'(30h, 31h): Enable P1: Security Pass code 1st '0'-'0'(30h, 30h): "0" | '0'-'9'(30h, 39h): "9" P2: Security Pass code 2nd '0'-'0'(30h, 30h): "0" | '0'-'9'(30h, 39h): "9" P3: Security Pass code 3rd '0'-'0'(30h, 30h): "0" | '0'-'9'(30h, 39h): "9" P4: Security Pass code 4th '0'-'0'(30h, 30h): "0" | '0'-'9'(30h, 39h): "9" ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies the result to the controller. Header Message SOH-'0'-'0'-Monitor ID-'B'-'0'-'A' STX-'C'-'3'-'1'-'D'-ST-EN-ETX Check code Delimiter BCC CR Header SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor ID is '1'. 'B' (42h): Message type is "Command reply". '0'-'A'(30h, 41h): Message length Message STX (02h): Start of Message (40/50)