If you give me a call at 1-800-656-5482 ext. 206, I’d be happy to provide you some information and literature on our PLC Driver for iSeries ( an IBM eServer proven tool) that allows PLC and iSeries to talk directly in real-time with no initermediate servers or store and forward operations. Our customers are using business modules on their iSeries boxes to collect data and directly control PLC attached devices on their plant floors. Tom Sullivan
<i>Our PLC-vendor is going to provide us collected PLC-data on a server in our LAN.</i>
That makes it sound like your PLC vendor is populating a file on a network PC server. It doesn’t say much about how it will be done.
Will there be a vendor client installed on the PC? or will it simply be a Windows share that the PLC device can write to?
In the first case, your AS/400 can access the PLC data through a Windows share seen in /QNTC in the IFS. In the second case, you might be able simply to have the PLC-device access a share straight from your IFS; then you wouldn’t need sockets programming nor FTP — everything would always be on your AS/400 already.