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I have seen several posted messages here about setting up a communication from SLC 5/03 to HMI but the answer is quite indefinite. We have an existing SLC 5/03*1747-AIC*1770-KF3 set-up connected to the serial of a PC. We are using InTouch as an HMI with an IOServer KF2. Because of speed issue, we decided to take out the KF3 module and bought a 1784-KTXd card (DH+, RIO, DH485). Since SLC 5/03 can only communicate through serial and DH485, we decided to connect the SLC 5/03 to 1747-AIC and then to the 1784-KTXd card inserted in the PC. Can I use a full-blown RSLinx to communicate InTouch (using WWRSLinx of Wonderware)? I can see in the configuration of WWRSLinx that the connection is direct (which I think a DH+ connectivity), ethernet, KA, KA5 and PI only and not coming from the 1747-AIC. Is there someone out there successfully tried this set-up? Can we not directly communicate RSLink to InTouch since this is an OPC? Is there another option for this set-up? I hope you can enlighten me with this. Thank you. We have an OEM RSLinx and a WWRSLinx IOServer but has not successfully configured it. Just to clear up again, we are communicating through DH485 and not DH+ using 1747-AIC in between SLC and PC. HMI is InTouch. OS is Windows 98 and NT.