Hello people, I am having a configuration as TIA portal - Kepware - Ignition 8.1 Perspective. All my tags are healthy, communication is established and data is reading as well as writing. I am facing an delay issue in this configuration, like when I write on any tag in Ignition or from Ignition to TIA through Kepware, it is taking much longer time to update that tag, almost 20 - 30 secs. If I read/write values on memory tags in Ignition or Simulate PLC in TIA portal, it is acting very normal, the response time is fast within the respective software. All my settings are as per required settings, scan time of Kepware is in msec. I am unable to figure out what is the issue with this.
I am using License versions of every software. Please guide through this.
Sounds like your PLC is overloaded with comms. You should check for delays on tag reads, too.
Thanks for your response, We have configured PLC on only one comms, there are no other dummy comms. Also for the tags, we have set 500msec scan rate, below that we have seen data lost, like we tried keeping 100msec, but found we loosing some data transfer. Still couldn't figure out what is wrong in the setup.
I'm not a Siemens guy, but if you're able to go slower, try going slower. You may also want to check how many tags you're scanning at your various tag scan groups. In the status of for OPC clients in Ignition you should be able to see how many tags are being read at each tag scan rate. If you're reading them all at 500ms, is that speed necessary on all tags or only some? Usually there are tags you need at faster rates because they're either live I/O or PLC calculated values, and some (or many) that rarely change that can be read at slower rates (like alarm setpoints, configuration values, etc).
Thanks for your response, I am trying to grouping the tags and setting up less scan time for that particular group in kepware. Hope so this will work..!!