Welcome to the OptoForums.
It’s been a very long time since I’ve used one of those old LCM4s or looked at the Modbus Integration kit. Remember you can always contact our PSG (product support group). They have some of those old controllers and lots of experience.
http://www.opto22.com/site/support.aspx And it's FREE!
However, I’d STRONGLY recommend you have a look our new, designed for managing power data OptoEMU “appliances” which require Zero Programming. (It’s an appliance because we’ve done all the programming for you!) The OPTOEMU-SNR-DR2 is only $895 list price (which includes a built-in power supply)!
I suspect the many hours you’d spend getting all those old pieces working together are worth much more than the price of the DR2. (And if you want a wireless version, to save more money on cables and installation, there’s the [OPTOEMU-SNR-DR1 w/built-in 802.11 WLAN.) Very cool stuff. We even have a nifty sample PAC Display project to save you time on your HMI and logging. Can you tell we’re excited about our new OptoEMU family members? [URL="http://www.opto22.com/site/pr_details.aspx?cid=8&item=OPTOEMU-SNR-DR2"]Click here for OPTOEMU-SNR-DR2 I mentioned](http://www.opto22.com/site/pr_details.aspx?cid=8&item=OPTOEMU-SNR-DR1).
Also Ben’s got a new OptoMinute video that talks about the additions to the family.
In any case, if you MUST use that LCM4, can you tell us a little more about where you're stuck? Have you used OptoDisplay extensively before? Are you seeing the values you want in OptoControl's debug windows?
P.S. Did I mention the OptoEMUs require Zero Programming?