SteveMyres

Wellp, can't test locally. Could try another port, though it hasn't changed since it worked [for me but not for him], but it means I'll have to edit the CTL and resend. That's doable. Oh, and the SCADA guy hasn't physically been local when he's testing but requests have been sent from his WW machines which are local, in addition to using Modbus clients local to him via VPN like I'm doing, and the local ones did no better.

At a customer site, I have an instance of DAQ Factory running, that's serving about 20 variables via Modbus. The plant SCADA integrator is trying to read these variables from two Wonderware Intouch instances, but can't make a connection to the DF server. Until recently, I could poll the DF slave registers with no issue, both with ModbusPoll and an instance of DF at my location, so I was inclined to blame the SCADA, perhaps the firewall settings on the machines. Now, however, I'm unsuccessful reading the registers with either ModbusPoll or DF (either in channels or sequence). I get P-ModbusTCP 0010: Timeout 05/25/20 12:55:01.140 Both the SCADA guy and I can ping the DF machine, and I'm not aware of any changes that have been made to the DF PC (firewall, for example) between when I could read and now, nor have any idea why I could read before when he could not.

Me three.

I not sure, either, but it's possible that's there's a magic name for a macro, like "autoexec" or something, whereby Excel knows to automatically run it when the document is opened.

I thought as of about 5.90 or so you could put variables directly into an explicitly defined array. Am I mistaken about that? If so, please consider it a feature request.