Hello,

I use Step 7 lite, CPU 315 and external MPI/DP PC adaptor. I find that the S7 lite is a bit slow when it is monitoring the PLC. For example, scrolling down the window does not happen smoothly but is jerky. Also when in monitor mode the screens update slowly ie. a monitored bit can take a couple of seconds to change its' displayed state in response to a real world change. This is even when the program is very small. As far as I know all my comms' settings are correct.

Is this normal?

Thanks in advance for any help.