CIP Specification class codes

[lazymonkeygod]

Hi,

The class codes in the specification only goes from 01h-f6h. For ones that are not within this range how would you find out what they mean?

 

[Contr_Conn]

All higher numbers are vendor specific

So what code do you have and who is vendor?

 

[lazymonkeygod]

I have class code A5h and 66h and 64h that I need to find out what they are and what attributes their objects contain.

I guess the vendor would be AllenBradley.

 

[Contr_Conn]

0x64 - 0xC7 all AB defined codes

64, 66 - is from controller object you have no business to look
A5 is DH+ -> this is propretary protocol.

For more information:
http://www.automation.rockwell.com/enabled/ and click on Contact us link [email protected]

 

[lazymonkeygod]

Let me clarify on what I'm trying to do here. I am trying to write a program that can browse the modules on a controllogix rack. After the modules are discovered at whichever port/address combination I want to be able to browse that module to see what device is connected to it.

Example: I have a 1756 DHRIO module on my controllogix rack. Attached to the DHRIO module is a PLC5 controller. The connection is a blue hose cable (DH+) on channel A of the DHRIO. I sent a GetAttributeAll service to each address on port 1. That successfully showed me all the locations of my modules on this rack. Now I know what modules are on this rack, I want to continue to browse further down the modules to see what devices are connected on the other end. How could I do it? What commands could I send to query the module to retrieve the end device? I've noticed through wireshark that RSLogix sends a GetAttributeAll command to retrieve the connection status on Channel A of the DHRIO module. The class code used in this call is A4h, which is why I'm trying to find out what this class code is and what attribute is available for me to use.

 

[Contr_Conn]

What you trying to do called "reverse engineering of propretary protocol" and this is illegal.
Dh+ is not open protocol and you must have license to use it.
To get licence for DH+ you need to contact RA Technologies group, see linx above.