Allen Bradley Micro810 LCD Characters

If you’re the curious type (quite possible) and you’ve been playing with an Allen Bradley Micro810 (less likely) you might have wondered what special characters you can put on the screen.

And you’d stay curious if you tried to find the answer in the Allen Bradley Documentation, because it’s shit: It doesn’t even tell you how many characters there are on a each line. Incidentally, the answer is 16.

Entering the characters into strings is pretty easy – just type $ followed by the 2 digit Hex code. e.g. ‘Hello$21’ would appear as Hello!.

The first 32 are dramatically different to the ASCII standard, and well worth knowing about, but there are a few others different 5C,5E & 7F. Codes 80 to FF are less useful, but there are a few accented characters in there that might be of use, depending on which language you use.

I wrote a simple program to show every code across 4 pages – use the left and right buttons to switch between them. This was prepared with Connected Components Workbench 22.0.0 for a Micro810 with v7 firmware.

Characters 00 – 3F (0-63)

Loads of goodies in here, look!

HEX	DEC	Symbol	ASCII Description	Micro810 Display
00	0	NUL	Null char	Space
01	1	SOH	Start of Heading	Empty Box
02	2	STX	Start of Text	Filled Box
03	3	ETX	End of Text	Up/down arrows
04	4	EOT	End of Transmission	Double down arrow
05	5	ENQ	Enquiry	Double Up arrow
06	6	ACK	Acknowledgment	Filled Box
07	7	BEL	Bell	Vertical Bar
08	8	BS	Back Space	Filled box with hole
09	9	HT	Horizontal Tab	Circle
0A	10	LF	Line Feed	Filled box with circle
0B	11	VT	Vertical Tab	Male Symbol
0C	12	FF	Form Feed	Female Symbol
0D	13	CR	Carriage Return	1 musical note
0E	14	SO	Shift Out / X-On	2 musical notes
0F	15	SI	Shift In / X-Off	Star
10	16	DLE	Data Line Escape	Right Arrow
11	17	DC1	Device Control 1 (oft. XON)	Left arrow
12	18	DC2	Device Control 2	Up/down arrow thin
13	19	DC3	Device Control 3 (oft. XOFF)	Something, not sure what
14	20	DC4	Device Control 4	Vertical line
15	21	NAK	Negative Acknowledgement	Section sign
16	22	SYN	Synchronous Idle	Small filled box
17	23	ETB	End of Transmit Block	Up/down arrow 3
18	24	CAN	Cancel	Up arrow thin
19	25	EM	End of Medium	Down arrow thin
1A	26	SUB	Substitute	Right arrow thin
1B	27	ESC	Escape	Left arrow thin
1C	28	FS	File Separator	Small “L”
1D	29	GS	Group Separator	Lef/Right arrow thin
1E	30	RS	Record Separator	Up Arrow
1F	31	US	Unit Separator	Down arrow
20	33		Space
21	33	!	Exclamation mark
22	34	“	Double quotes (or speech marks)
23	35	#	Number
24	36	$	Dollar
25	37	%	Percentage
26	38	&	Ampersand
27	39	‘	Single quote
28	40	(	Open parenthesis (or open bracket)
29	41	)	Close parenthesis (or close bracket)
2A	42	*	Asterisk
2B	43	+	Plus
2C	44	,	Comma
2D	45	–	Hyphen
2E	46	.	Period, dot or full stop
2F	47	/	Slash or divide
30	48	0	Zero
31	49	1	One
32	50	2	Two
33	51	3	Three
34	52	4	Four
35	53	5	Five
36	54	6	Six
37	55	7	Seven
38	56	8	Eight
39	57	9	Nine
3A	58	:	Colon
3B	59	;	Semicolon
3C	60	<	Less than (or open angled bracket)
3D	61	=	Equals
3E	62	>	Greater than (or close angled bracket)
3F	63	?	Question mark

Characters 40-7F

Most of these are pretty similar to standard ASCII, but with a few exceptions

HEX	DEC	Symbol	ASCII Description	Micro810 Display
40	64	@	At symbol
41	65	A	Uppercase A
42	66	B	Uppercase B
43	67	C	Uppercase C
44	68	D	Uppercase D
45	69	E	Uppercase E
46	70	F	Uppercase F
47	71	G	Uppercase G
48	72	H	Uppercase H
49	73	I	Uppercase I
4A	74	J	Uppercase J
4B	75	K	Uppercase K
4C	76	L	Uppercase L
4D	77	M	Uppercase M
4E	78	N	Uppercase N
4F	79	O	Uppercase O
50	80	P	Uppercase P
51	81	Q	Uppercase Q
52	82	R	Uppercase R
53	83	S	Uppercase S
54	84	T	Uppercase T
55	85	U	Uppercase U
56	86	V	Uppercase V
57	87	W	Uppercase W
58	88	X	Uppercase X
59	89	Y	Uppercase Y
5A	90	Z	Uppercase Z
5B	91	[	Opening bracket
5C	92	\	Backslash	Weird Portcullis thing
5D	93	]	Closing bracket
5E	94	^	Caret – circumflex	Right arrow tall (Cursor)
5F	95	_	Underscore
60	96	`	Grave accent
61	97	a	Lowercase a
62	98	b	Lowercase b
63	99	c	Lowercase c
64	100	d	Lowercase d
65	101	e	Lowercase e
66	102	f	Lowercase f
67	103	g	Lowercase g
68	104	h	Lowercase h
69	105	i	Lowercase i
6A	106	j	Lowercase j
6B	107	k	Lowercase k
6C	108	l	Lowercase l
6D	109	m	Lowercase m
6E	110	n	Lowercase n
6F	111	o	Lowercase o
70	112	p	Lowercase p
71	113	q	Lowercase q
72	114	r	Lowercase r
73	115	s	Lowercase s
74	116	t	Lowercase t
75	117	u	Lowercase u
76	118	v	Lowercase v
77	119	w	Lowercase w
78	120	x	Lowercase x
79	121	y	Lowercase y
7A	122	z	Lowercase z
7B	123	{	Opening brace
7C	124	|	Vertical bar
7D	125	}	Closing brace
7E	126	~	Equivalency sign – tilde
7F	127		Delete	Square Root sign

Characters 80-BF

A couple of Asian characters, and some common accented letters

HEX	DEC	Symbol	Micro810 Display
90	144		Asian Symbol
91	145		Asian Symbol
A1	161	á	Lowercase a with acute
A3	163	à	Lowercase a with grave
A5	165	é	Lowercase e with acute
A7	167	è	Lowercase e with grave
A9	169	Í	Uppercase I with acute
AD	173	ó	Lowercase o with acute
B8	184	ü	Lowercase u with diaeresis
B9	185	ê	Lowercase e with circumflex

Characters C0-FF

A bunch of accented characters – these seem to be aligned to Unicode code points

HEX	DEC	Symbol	Micro810 Display	Unicode
C0	192	À	Uppercase A with grave	match
C1	193	Á	Uppercase A with acute	match
C2	194	Â	Uppercase A with circumflex	match
C3	195	Ã	Uppercase A with tilde	match
C4	196	Ä	Uppercase A with diaeresis	match
C5	197	Ȧ	Uppercase A with overdot	Å: Uppercase A with overring (Ȧ: Uppercase A with overdot is at U+0226)
C6	198	Æ	Uppercase AE	match
C7	199
C8	200	È	Uppercase E with grave	match
C9	201	É	Uppercase E with acute	match
CA	202	Ê	Uppercase E with circumflex	match
CB	203	Ë	Uppercase E with diaeresis	match
CC	204	Ì	Uppercase I with grave	match
CD	205	Í	Uppercase I with acute	match
CE	206	Î	Uppercase I with circumflex	match
CF	207	Ï	Uppercase I with diaeresis	match
D0	208	Ð	Uppercase Eth	match
D1	209	Ñ	Uppercase N with tilde	match
D2	210	Ò	Uppercase O with grave	match
D3	211	Ó	Uppercase O with acute	match
D4	212	Ô	Uppercase O with circumflex	match
D5	213	Õ	Uppercase O with tilde	match
D6	214	Ö	Uppercase O with diaeresis	match
D7	215
D8	216
D9	217	Ù	Uppercase U with grave	match
DA	218	Ú	Uppercase U with acute	match
DB	219	Û	Uppercase U with circumflex	match
DC	220	Ü	Uppercase U with diaeresis	match
DD	221	Ý	Uppercase Y with acute	match
DE	222
DF	223
E0	224	à	Lowercase a with grave	match
E1	225	á	Lowercase a with acute	match
E2	226	â	Lowercase a with circumflex	match
E3	227	ã	Lowercase a with tilde	match
E4	228	ä	Lowercase a with diaeresis	match
E5	229	ȧ	Lowercase a with overdot	å: Lowercase a with overring (ȧ: Lowercase a with overdot is at U+0227)
E6	230	æ	Lowercase ae	match
E7	231	ç
E8	232	è	Lowercase e with grave	match
E9	233	é	Lowercase e with acute	match
EA	234	ê	Lowercase e with circumflex	match
EB	235	ë	Lowercase e with diaeresis	match
EC	236	ì	Lowercase i with grave	match
ED	237	í	Lowercase i with acute	match
EE	238	î	Lowercase i with circumflex	match
EF	239	ï	Lowercase i with diaeresis	match
F0	240
F1	241	ñ	Lowercase n with tilde	match
F2	242	ò	Lowercase o with grave	match
F3	243	ó	Lowercase o with acute	match
F4	244	ô	Lowercase o with circumflex	match
F5	245	õ	Lowercase o with tilde	match
F6	246	ö	Lowercase o with diaeresis	match
F7	247
F8	248
F9	249	ù	Lowercase u with grave	match
FA	250	ú	Lowercase u with acute	match
FB	251	û	Lowercase u with circumflex	match
FC	252	ü	Lowercase u with diaeresis	match
FD	253	ý	Lowercase y with acute	match
FE	254
FF	255	ÿ	Lowercase y with diaeresis	match