Commands by the serial interface
PCD7.D250
Page 6-10
SAIA-Burgess Electronics Ltd.
(D25-06-E.DOC)
26/770 E1
6.4 LED control
The ..D250 has 8 LEDs, numbered 1 to 8, which can be used as general-
purpose indicators. Each can be turned on and off by a four character
escape sequence.
A lower case letter ‘a’ to ‘h’ is used to select LED 1 to 8
(‘a’ = LED 1, ‘h’ = LED 8).
To turn on the LED use ‘1’, to turn it off use ‘0’.
Command
ASCII
Decimal
Hex
Turn on
LED 1
ESC @ a 1
27 64
97 49
1B 40 61 31
Turn off LED 1
ESC @ a 0
27 64
97 48
1B 40 61 30
Turn on
LED 2
ESC @ b 1
27 64
98 49
1B 40 62 31
Turn off LED 2
ESC @ b 0
27 64
98 48
1B 40 62 30
Turn on
LED 3
ESC @ c 1
27 64
99 49
1B 40 63 31
Turn off LED 3
ESC @ c 0
27 64
99 48
1B 40 63 30
Turn on
LED 4
ESC @ d 1
27 64 100 49
1B 40 64 31
Turn off LED 4
ESC @ d 0
27 64 100 48
1B 40 64 30
Turn on
LED 5
ESC @ e 1
27 64 101 49
1B 40 65 31
Turn off LED 5
ESC @ e 0
27 64 101 48
1B 40 65 30
Turn on
LED 6
ESC @ f 1
27 64 102 49
1B 40 66 31
Turn off LED 6
ESC @ f 0
27 64 102 48
1B 40 66 30
Turn on
LED 7
ESC @ g 1
27 64 103 49
1B 40 67 31
Turn off LED 7
ESC @ g 0
27 64 103 48
1B 40 67 30
Turn on
LED 8
ESC @ h 1
27 64 104 49
1B 40 68 31
Turn off LED 8
ESC @ h 0
27 64 104 48
1B 40 68 30
F1
F2
F3
F4
F5
F6
F7
F8
LED1 (a)
LED2 (b)
LED3 (c)
LED4 (d)
LED5 (e)
LED6 (f)
LED7 (g)
LED8 (h)
