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We made some additions to our Lookout 5.0 program and now we only have communication one way. We receive fine from our PLC which is a Smar LC700 to the lookout but we cannot send from Lookout to the PLC. We are use the Smar LC700 OPC server. I have tried removing and replaceing the connnections using edit connection and every now and then we'll get two way communication but it will either work showing a com error or if it works without error it does not last long before we are only receiving from the PLC again.
