DNF Controls ST420-CP - Manual (Page 9)

ST420 Control Panel 9 9
d. COMMAND EXAMPLES
ST420 External Control System
1) Keyboard status request with the response that indicates that all keys are released.
ÍÍ 0x2 + 0x01 + ‘K’ + 0x4E
0x2 + 0x07 + ‘K’ + 0x00 + 0x00 + 0x00 + 0x00 + 0x00 + 0x00 + 0x54 ÎÎ
2) Instruction to turn on LEDs 1 and 9.
ÍÍ 0x2 + 0x03 + ‘L’ + 0x01 + 0x01 + 0x53
0x02 + 0x01 +0x04 +0x07 ÎÎ
3) Instruction to turn all LCD keys red.
ÍÍ 0x2 + 0x03 + ‘C’ + 0x00 + 0x03 + 0x4B
0x02 + 0x01 +0x04 +0x07 ÎÎ
4) Instruction to write a character “A” on LCD key 1.
ÍÍ 0x2 + 0x05 + ‘A’ + 0x01 + 0x01 + ‘A’ + 0x00 + 0x8B
0x02 + 0x01 +0x04 +0x07 ÎÎ
5) Instruction to clear all text from all LCD keys:
ÍÍ 0x2 + 0x04 + ‘A’ + 0x00 + 0x00 + 0x00 + 0x47
0x02 + 0x01 +0x04 +0x07 ÎÎ