ECOM 100 to Modbus TCP

[ksmith]

I am working on a project that will require a 260 cpu to communicate to a 3rd party microprcessor compressor panel via Modbus TCP.  The vendor has sent to me a spreadsheet with "Ethernet IP Address" of N50:0, N50:1, etc....  They also sent the Modbus addresses (40001, 40002, etc.... 

I need to pull info from the 3rd party panel.  Pretty sure its doable.  Question I have is can I use the iBox in Directsoft for this or the expanded code?  I am new to the Modbus world outside of the AD world. 

Any questions I need to be asking our vendor on comm with their panel?

Thanks for your help.

[Greg]

Yes, it is doable. The DL260 in concert with an H2-ECOM100 module can do Modbus TCP either as a client (master) or server (slave). The Modbus function codes supported are shown here:

http://www.hosteng.com/FAQFiles/ECOM.htm#FAQ0038

Yes you can use the IBoxes, ECOM100, ECRX and ECWX with the proper addresses in them to generate the desired Modbus function code. Basic steps are:

1. Use NetEdit to configure your H2-ECOM100 with a peer-to-peer entry with Modbus TCP selected as the protocol.
2. Program an ECOM100 IBox at the top of your ladders.
3. Program an ECRX (or ECWX) with the proper addresses to generate the desired Modbus function code. (Use the PDF file in the above FAQ for a quick reference).

Of course, you may need to consult the DL260 and/or ECOM100 manuals for more details; or, ask more questions here to gain a better understanding of the details of the steps above.

Hope this helps!