RSSQL, RSLinx, ControlLogix5xxx series PLC

I plan to have a setup where RSSql reads datapoints from a PLC via RSLinx and attempts to insert them into the database. If the database successfully inserts the row then I'd like to continue operation; however, if RSSql fails to insert the row (postgresql issues a REJECT on the tuple) I'd like to issue a command to the PLC to stop operation. Do I need RSView in order to issue this command or can RSSql combined with RSLinx issue a command to the PLC to stop operation. Can RSSql even recognize that the insert failed? How does RSSQL issue that command to the PLC?

Thank you,
David Ziman

Have you verified that RSSQL will work with Postgres?

Yes, there is handshaking between the PLC and RSSQL.

You need to RTFM