Before I get too far down a rabbit hole I'd like to see if it's even possible to communicate to a RACO C10-020-1450E. The support page for the connection guide can be found here. The main point of concern from that document is:
To start, I am able to successfully connect to it using the Modbus Driver on my local Ignition instance. However when I try and write to a coil either using C1 or trying to map some addresses in with a node ID of 2 (I did this because of the SNA style from the guide?) I get the following error:
I'm just curious if the somewhat odd addressing style might be my issue, or if I'm missing something even more obvious?
That "Modbus" is terrible. Definitely don't use that.
The unit supports Ethernet/IP, use the Automation Professionals Ethernet/IP driver and connect as if you were a PLC, at least thats a standard method.
If you must insist on trying Modbus, Automation Professionals also have a Modbus driver that has a lot more features for oddball stuff than the IA one.
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I definitely agree that this flavor of modbus is not the best. However, I the facility will not go for purchasing a $1000/$500 module for this one off application. I might have to write it off and try to pull to a local PLC and configure it over EIP. I was just hoping I'd be able to do it directly through Ignition without additional modules.
Try C2 instead of C1? That seems like the first address given you have to multiply every address by 2 (1 * 2 * offset).
TBH looking at the "Catalyst" unit, you would be better off deleting it entirely and replacing it with Ignition. From it's advertising on the website, it is a glorified alarm notification system with a lot of non standard interfaces. For the price that someone paid for it (current pricing I could find is $7500 USD) , you probably bought 3 standards compliant units that integrate just fine with lots of other systems.
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That was also kind of where I was going with the purchase of the EIP module. We already have a 'newer generation' of TTS at other facility's that's monumentally cheaper, but this CATALYST was 'free' from a decommissioned line.
