Modbus or OPC interface

["Richard Challis" <richard@xxxxxxxxxxxxxxxxxx>]

Hello,

Normally lurk on this list, but time to ask a question!

I have an early Homevision system that I haven't upgraded in a long time.
The other half is interested in my proposal for increased control of the
house esp energy management. I also have a couple of PLC's that was ripped
out of my previous house and never recommissioned. They can either talk a
simple serial protocol that I can port to OPC or Ethernet to a protocol
called DF1.

I have been looking at the XL package for Homevision, Homeseer, XAP etc. As
I feel presenting data in a web format is the most flexible for my everyday
use.

One thing is as an automation engineer, all the industrial kit I have
either
surplus or scrounged over the years. Lots of the gear talks either Modbus
or
I would use a OPC interface to talk to a SCADA package. Nothing in the HA
world seems to talk Modbus or OPC. I have found several posts on the
homeseer forum about Modbus.

For instance, I have a kWh meter that does have a pulse on it, but in the
interest of complicating the issue, I normally keep away from pulses as
things get out of sync and prefer to read the memory straight out of the
meter. This is done via Modbus on the RS485 interface. I also have a RS485
to Ethernet gateway.

Is there anything I can run that will talk Modbus to XAP/XPL or OPC to the
same.

Is there an easy way of parsing serial data into XAP or homeseer.

Done a fair bit of googling, but my brain is now really confused.

Regards

Richard


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