Hi,
In a new propject where I had very slow communication (HMI acting slow) I used an S7 315 2DP CPU.
I set the cycle load for communication on 30, then it was little better. The panel has no faster tags then 500ms. When I set the load to 15%, then profibus falls out !!!
I placed a Vipa, just as a test. Instead of 11ms cycle I had 1ms, maybe less, but simatic couldn't show less then 1ms.
And, guess what, the communication is very fast now.
For my new project I have to use a siemens 315 2PN/DP, Im a lttle affraid after seeing this...
In a new propject where I had very slow communication (HMI acting slow) I used an S7 315 2DP CPU.
I set the cycle load for communication on 30, then it was little better. The panel has no faster tags then 500ms. When I set the load to 15%, then profibus falls out !!!
I placed a Vipa, just as a test. Instead of 11ms cycle I had 1ms, maybe less, but simatic couldn't show less then 1ms.
And, guess what, the communication is very fast now.
For my new project I have to use a siemens 315 2PN/DP, Im a lttle affraid after seeing this...