How to write a specific COM connection?

Question

Hello,

I'm working with a measurement system (CL-200) and want to controll it with my computer.
So I connected it with the standart connection (BaudRate, DataBits, StopBits, Parity) but the original
software that I don't want to use sets the device in a "PC mode".
Only in this mode I can get answer with my Code requests.
So how do I set the needed values like this Software?
Cause with my connection the device isn't in a "Pc mode".

Here is a communication log from the software I want to emulate:

0	IRP_MJ_CREATE	DOWN	TRUE	0x0	43 00 4C 00 53 00 31 00 77 00 2E 00 65 00 78 00 65 00 00 00	C.L.S.1.w...e.x.e...
1	IRP_MJ_CREATE	UP	FALSE	0x0
2	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	DOWN	FALSE	0x0
3	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	UP	TRUE	0x0	80 25 00 00	€%..
4	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	DOWN	FALSE	0x0
5	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	UP	TRUE	0x0	00 00 08	...
6	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	DOWN	FALSE	0x0
7	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	UP	TRUE	0x0	1A 00 00 1A 11 13	......
8	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	DOWN	FALSE	0x0
9	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	UP	TRUE	0x0	00 00 00 00 00 00 00 00 19 00 00 00 19 00 00 00	................
10	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	DOWN	FALSE	0x0
11	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	UP	TRUE	0x0	80 25 00 00	€%..
12	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	DOWN	FALSE	0x0
13	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	UP	TRUE	0x0	00 00 08	...
14	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	DOWN	FALSE	0x0
15	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	UP	TRUE	0x0	1A 00 00 1A 11 13	......
16	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	DOWN	FALSE	0x0
17	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	UP	TRUE	0x0	00 00 00 00 00 00 00 00 19 00 00 00 19 00 00 00	................
18	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	DOWN	TRUE	0x0	80 25 00 00	€%..
19	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	UP	FALSE	0x0
20	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_RTS: Set RTS)	DOWN	FALSE	0x0
21	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_RTS: Set RTS)	UP	FALSE	0x0
22	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_DTR: Set DTR)	DOWN	FALSE	0x0
23	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_DTR: Set DTR)	UP	FALSE	0x0
24	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	DOWN	TRUE	0x0	00 02 07	...
25	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	UP	FALSE	0x0
26	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	DOWN	TRUE	0x0	1A 00 00 1A 11 13	......
27	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	UP	FALSE	0x0
28	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	DOWN	TRUE	0x0	01 00 00 00 40 00 00 00 19 00 00 00 19 00 00 00	....@...........
29	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	UP	FALSE	0x0
30	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_TIMEOUTS: Set timeouts)	DOWN	TRUE	0x0	FF FF 00 00 01 00 00 00 2C 01 00 00 00 00 00 00 00 00 00 00	ÿÿ......	...........
31	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_TIMEOUTS: Set timeouts)	UP	FALSE	0x0
32	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_PURGE: Purge requests)	DOWN	TRUE	0x0	0C 00 00 00	....
33	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_PURGE: Purge requests)	UP	FALSE	0x0
34	IRP_MJ_WRITE	DOWN	TRUE	0x0	02 39 39 35 34 31 20 20 20 03 31 33 0D 0A	.99541 .13..
35	IRP_MJ_WRITE	UP	TRUE	0x0	02 39 39 35 34 31 20 20 20 03 31 33 0D 0A	.99541 .13..
36	IRP_MJ_READ	DOWN	FALSE	0x0
37	IRP_MJ_READ	UP	FALSE	0x102

And here is the log of my current connection:

0	IRP_MJ_CREATE	DOWN	TRUE	0x0	53 00 65 00 72 00 69 00 61 00 6C 00 50 00 6F 00 72 00 74 00 20 00 54 00 65 00 72 00 6D 00 69 00 6E 00 61 00 6C 00 2E 00 76 00 73 00 68 00 6F 00 73 00 74 00 2E 00 65 00 78 00 65 00 00 00	S.e.r.i.a.l.P.o.r.t. .T.e.r.m.i.n.a.l...v.s.h.o.s.t...e.x.e...
1	IRP_MJ_CREATE	UP	FALSE	0x0
2	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_PROPERTIES: Retrieve COM properties)	DOWN	FALSE	0x0
3	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_PROPERTIES: Retrieve COM properties)	UP	TRUE	0x0	40 00 02 00 01 00 00 00 00 00 00 00 00 10 00 00 00 10 00 00 00 00 02 00 06 00 00 00 CB 01 00 00 7F 00 00 00 70 6B 06 00 0F 00 07 1F 00 00 00 00 64 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00	@...........................Ë......pk..........d...............
4	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_MODEMSTATUS: Retrieve modem status)	DOWN	FALSE	0x0
5	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_MODEMSTATUS: Retrieve modem status)	UP	TRUE	0x0	30 00 00 00	0...
6	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	DOWN	FALSE	0x0
7	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	UP	TRUE	0x0	B0 04 00 00	°...
8	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	DOWN	FALSE	0x0
9	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	UP	TRUE	0x0	00 00 07	...
10	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	DOWN	FALSE	0x0
11	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	UP	TRUE	0x0	00 00 00 00 00 00	......
12	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	DOWN	FALSE	0x0
13	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	UP	TRUE	0x0	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00	................
14	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	DOWN	FALSE	0x0
15	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	UP	TRUE	0x0	B0 04 00 00	°...
16	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	DOWN	FALSE	0x0
17	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	UP	TRUE	0x0	00 00 07	...
18	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	DOWN	FALSE	0x0
19	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	UP	TRUE	0x0	00 00 00 00 00 00	......
20	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	DOWN	FALSE	0x0
21	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	UP	TRUE	0x0	00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00	................
22	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	DOWN	TRUE	0x0	80 25 00 00	?%..
23	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	UP	FALSE	0x0
24	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_RTS: Clear RTS)	DOWN	FALSE	0x0
25	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_RTS: Clear RTS)	UP	FALSE	0x0
26	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	DOWN	FALSE	0x0
27	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	UP	FALSE	0x0
28	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	DOWN	TRUE	0x0	00 02 07	...
29	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	UP	FALSE	0x0
30	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	DOWN	TRUE	0x0	1A 3F 3F 1A 11 13	.??...
31	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	UP	FALSE	0x0
32	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	DOWN	TRUE	0x0	00 00 00 00 04 00 00 00 19 00 00 00 19 00 00 00	................
33	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	UP	FALSE	0x0
34	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	DOWN	FALSE	0x0
35	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_BAUD_RATE: Retrieve Baud Rate)	UP	TRUE	0x0	80 25 00 00	?%..
36	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	DOWN	FALSE	0x0
37	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_LINE_CONTROL: Retrieve line control)	UP	TRUE	0x0	00 02 07	...
38	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	DOWN	FALSE	0x0
39	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_CHARS: Retrieve special characters)	UP	TRUE	0x0	1A 3F 3F 1A 11 13	.??...
40	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	DOWN	FALSE	0x0
41	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_GET_HANDFLOW: Retrieve handshake information)	UP	TRUE	0x0	00 00 00 00 04 00 00 00 19 00 00 00 19 00 00 00	................
42	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	DOWN	TRUE	0x0	80 25 00 00	?%..
43	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_BAUD_RATE: Set baud rate)	UP	FALSE	0x0
44	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_RTS: Clear RTS)	DOWN	FALSE	0x0
45	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_RTS: Clear RTS)	UP	FALSE	0x0
46	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	DOWN	FALSE	0x0
47	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	UP	FALSE	0x0
48	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	DOWN	TRUE	0x0	00 02 07	...
49	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_LINE_CONTROL: Set line control)	UP	FALSE	0x0
50	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	DOWN	TRUE	0x0	1A 3F 3F 1A 11 13	.??...
51	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_CHARS: Set special characters)	UP	FALSE	0x0
52	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	DOWN	TRUE	0x0	00 00 00 00 04 00 00 00 19 00 00 00 19 00 00 00	................
53	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_HANDFLOW: Set handshake information)	UP	FALSE	0x0
54	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	DOWN	FALSE	0x0
55	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_CLR_DTR: Clear DTR)	UP	FALSE	0x0
56	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_TIMEOUTS: Set timeouts)	DOWN	TRUE	0x0	FF FF FF FF FF FF FF FF FE FF FF FF 00 00 00 00 00 00 00 00	ÿÿÿÿÿÿÿÿþÿÿÿ........
57	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_TIMEOUTS: Set timeouts)	UP	FALSE	0x0
58	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_WAIT_MASK: Set current event mask)	DOWN	TRUE	0x0	FB 01 00 00	û...
59	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_WAIT_MASK: Set current event mask)	UP	FALSE	0x0
60	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_QUEUE_SIZE: Set queue size)	DOWN	TRUE	0x0	00 10 00 00 00 08 00 00	........
61	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_SET_QUEUE_SIZE: Set queue size)	UP	FALSE	0x0
62	IRP_MJ_DEVICE_CONTROL (IOCTL_SERIAL_WAIT_ON_MASK: Wait for event)	DOWN	FALSE	0x0

See mine is so much different than the connection I want to have.

Thanks for answers

Sascha B · Answer

Yeah, that's the point. I don't see it too. But maybe it is only a look-a-like Hexcode cause this desvice also has a print option(button) and with this I can send a "Hexcode" to the printer or pc. And it looked like this: "[...]35 36 32 2B 38[...]" in words: 562,8. So I had to cross out the number 3 as the first number and 2B was declined as a comma. Today I will make some other sniffer trys so that I'll have more code comparison. And thanks for your effort! This thread can be closed! Cause there are other problems in my way now...

Sam Hobbs · Answer

I don't see the connection either. I used the following code to convert the hex and the string I got from this does not make sense. The 0D 0A at the end of the hex implies that the hex data reprensents text, but there are non-text characters in the hex data. It really does not make sense. String s = "02 30 31 30 31 30 20 32 30 2B 38 37 38 39 33 2B 38 38 39 37 33 2B 36 36 35 30 33 03 30 43"; String[] sa = s.Split(' '); foreach (string x in sa) { int Decimal = Convert.ToInt32(x, 16); Console.Write(Char.ConvertFromUtf32(Decimal)); } Console.WriteLine(); }

Sascha B · Answer

Yeah sorry for my bad english. The values on the right side are the values that I can see on my measurement's display. And the Hexcode is the log from my COM sniffer. But I don't see the connection between the Hexcode and the display's values.

Sam Hobbs · Answer

I am sorry, but I don't understand " the lines between them ". What part do you need to get? Do you need to convert the Hexcode or do you need to get the measurement values on the right?

Sascha B · Answer

ok I had to send a special Code that checks the heads. And now the device is in the "Pc Mode" So but now I have a problem with the code. I compared 5 different color measurements and this is the result. on the left side is the Hexcode and on the right side the result of my measurement. But I cannot the the lines between them... 02 30 31 30 31 30 20 32 30 2B 38 37 38 39 33 2B 38 38 39 37 33 2B 36 36 35 30 33 03 30 43 0D 0A X = 882.6 02 30 31 34 35 31 20 32 30 34 34 33 45 31 32 43 34 34 34 35 43 32 34 46 33 34 34 32 34 32 37 38 46 03 36 41 0D 0A Y = 886.5 Z = 691.3 02 30 31 30 31 30 20 32 30 2B 37 37 39 36 33 2B 37 38 38 33 33 2B 35 35 35 32 33 03 30 35 0D 0A X = 793.8 02 30 31 34 35 31 20 32 30 34 34 32 43 34 41 41 36 34 34 34 36 31 44 32 44 34 34 30 43 33 44 35 38 03 36 42 0D 0A Y = 797.5 Z = 590.9 02 30 31 30 31 30 20 32 30 2B 37 36 30 34 33 2B 37 36 38 30 33 2B 35 32 38 33 33 03 30 39 0D 0A X = 777.1 02 30 31 34 35 31 20 32 30 34 34 32 38 46 43 31 37 34 34 34 31 41 31 33 30 34 34 30 37 37 45 31 41 03 36 41 0D 0A Y = 779.4 Z = 570.9 02 30 31 30 31 30 20 32 30 2B 37 33 30 39 33 2B 37 33 37 30 33 2B 34 39 38 36 33 03 30 34 0D 0A X = 770.7 02 30 31 34 35 31 20 32 30 34 34 32 38 30 33 31 39 34 34 34 30 30 30 30 30 34 34 30 34 31 34 44 42 03 31 32 0D 0A Y = 772.8 Z = 556.6 02 30 31 30 31 30 20 32 30 2B 38 37 30 31 33 2B 38 38 30 36 33 2B 36 35 36 36 33 03 30 32 0D 0A X = 740.8 02 30 31 34 35 31 20 32 30 34 34 32 31 45 33 30 44 34 34 33 38 34 30 35 35 34 33 46 39 35 31 30 30 03 36 32 0D 0A Y = 741.6 Z = 525.4

Sam Hobbs · Answer

First, please understand that the term "COM" is usuall used to refer to COM objects or COM components; not serial communications, so the term is misleading. Yes, COM also refers to serial communications ports, but it is more useful to say serial commun ications instead of COM. Also, the term "PC Mode" is not a Windows term or a traditional serial communications term; at least not that I am aware of. PC Mode probably is essentially unique to the software you are using, so probably you must refer to the software documentation to determine what the parameters are.

How to write a specific COM connection?

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