Dareko009

Omron CJ1m - bluetooth connect

14 posts in this topic

Hi,
I write app to smartphone to communication omron CJ1m and Android. I want to connect devices by standard bluetooth. I plug in bluetooth adapter directly to omron RS232. 
I want to ask you, how i can connect by FINS command.
Bluetooth device baud rate is set 9600.
If i connect to omron, i sent code: "AC01" and i sent how long as omron return me "AC01" ??
And what's next command i sent?
If I want read CIO 10 i sent: "0101B000000A" ? and FCS and "*" ??
how i calculate FSC? Is it XOR my data sent? 

Edited by Dareko009

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Here is an FCS Calculator at Mr PLC's downloads section. http://forums.mrplc.com/index.php?/files/file/174-fcs-frame-checksum-calculator/

The manual that want to reference is the CS/CJ Communications Commands Reference Manual W342. You'll want to use Host Link protocol for RS232 communications. FINS is used for Ethernet.

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Thanks for answer.

I look for answer to my question in this documencation and i can't find it or i can't understand it. 
In this documentation i can't find anythink about command "AC01" to check connection.
I search answer in Net and i found http://www.tri-plc.com/HostlinkE10.pdf 
In 1st point is Poin-to_point communication and what i know about my communication it will look at this...
But i don't know what i should write in Header? 
And my code would like:
Header + Command + Terminator? 
And what about reply? 

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If i connect to omron, i sent code: "AC01" and i sent how long as omron return me "AC01" ??

AC01 is an incorrect hostlink command.:shrug:  You will not get a response.

To read the first CIO word.  Try "@00RR0000000141*CR"

Quote

I plug in bluetooth adapter directly to omron RS232. 

What is your wiring?  The Omron RS232 port is non standard wiring.

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Please use the documentation that IO Rack sent you.  You are trying to use a different manufacturers documentation other than Omron hostlink.

http://forums.mrplc.com/index.php?/files/file/620-w342-e1-09-sysmac-cscj-series-communication-commands/

CS/CJ Communications Commands Reference Manual W342.

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What is your wiring?  The Omron RS232 port is non standard wiring.

RS232_Cable.JPG.21a02f9e725577982a0fb893

Quote

AC01 is an incorrect hostlink command.:shrug:  You will not get a response.

I talk with my professor  and he say that i must sent "AC01" hex and wait for response. It will work like:

https://www.myomron.com/index.php?action=kb&article=34

 

Quote

Please use the documentation that IO Rack sent you. 

I use this documentation and i can't find answer.

When i talked with my professor he said i haven't must sent " @ " and  my command would looks like:
 

komenda.thumb.png.df4e0e6002610547de18c3


And he say's it will work. 

It will work??
And what about terminator?? 
 

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The Omron RS232 port is non standard wiring.

Jumper 4 to 5

Quote

I talk with my professor  and he say that i must sent "AC01" hex and wait for response. 

This is for the peripheral port.

Quote

To read the first CIO word.  Try "@00RR0000000141*CR"

This is the correct protocol.  You are trying to use FINS protocol,

Quote

And what about terminator?? 

"" is the terminator.

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This is for the peripheral port.

@Jay Anthony Can you tell me how would like command look if i connect to PLC by peripheral port? 
Maybe i don't understand my professor and he want connect to PLC by peripheral port because he said about "AC01" and simple command FINS. 

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The peripheral port is for programming. use the serial port with the command I gave you.

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Toolbus is not documented.  What's wrong with Hostlink??

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Toolbus is not documented.  What's wrong with Hostlink??

Probably nothing.

But i asked my professor and he want use ToolBus communication.

In my program i will use only command to read and write word from and to omron.
In this forum i found, ToolBus command would look like:
 

Quote

Message format: Toolbus Header, FINS Header, FINS Command, Checksum.

Where:
Toolbus Header - AB00xx 
xx -  number of following bytes in message including checksum - number of bytes FINS Command and Checksum ?

FINS Header - if i connect whit PLC directly, i can skip FINS Header ?? 

FINS Command - it is standartd FINS Command, eg 0101 - memory area read + B0 - memory area code(word CIO area) + 000000 - read adres (word CIO 0),

Chcecksum -  sum all bytes of message to form 16 bit (two byte) checksum - it is sum with Toolbus Header or not??

This message is sent by byte?



 

 

Edited by Dareko009

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good luck.  Fire the professor.:stupid:

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Indeed Toolbus ain't documented, but using the Multiway program from Omron France, we can practically reverse engineer it.
Granted you are a student, I'm sure you have the time for doing that.
However, as Jay mentioned it is not really wise to do so. It's kind of wasting your time reverse engineering something that is undocumented, while you have something else that is already documented properly with the exact same usage (HostLink in this case).

And guess what? The said "AC01" command was actually documented here : https://www.myomron.com/index.php?action=kb&article=34

Surely it is not documented properly. If you want to try the command again, try sending "AC01" not as a String (in which you are sending 41 43 30 31 hex bytes), but send them as a raw hex bytes (so you are sending AC 01 hex bytes). I don't know whether that'll work or not since I never tried it myself. Good luck.

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